Random Science

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  • Created by: T Colby
  • Created on: 24-04-15 16:16
What is the lifecycle of a low mass star e.g. the Sun?
Protostar-main sequence star-red giant-white dwarf-black dwarf
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What is the lifecycle of a big mass star?
Protostar-main sequence star-red supergiant-supernova-neutron star-black hole (if big enough).
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A supernova is a massive ... of a supergiant after it ...
Explosion and collapses
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Elements as heavy as ... are formed ... stars as a result of nuclear ...
Iron, inside and fusion
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Elements ... than iron are formed in ...
Heavier and supernovas
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Our solar system and others and everything in it was all formed from the debris of a ...
Supernova
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CMBR stands for what?
Cosminc microwave background radiation
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CMBR is ... radiation that was created just after the ... ...
Electromagnetic and Big Bang
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The ... a galaxy is moving away from us the bigger its ... ...
Faster and red shift
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The ... away a galaxy is the bigger its ... ... is
Further and red shift
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Before galaxies and stars were formed the universe was a big cloud of ... and ...
Hydrogen and helium
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Doppler effect: towards observer=... wavelength and ... from observer=longer wavelength
Shorter and away
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What is a wave source?
Something emitting light or sound
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Electricity generators in power stations are driven by ...
Turbines
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Coal, oil and natural gas are burned in ... ... power stations
Fossil fuel
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In nuclear power stations what two elements are used as their fuels?
Uranium and plutonium
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Biofuels are ... sources of energy
Renewable
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Wind turbines generate what?
Electricity
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Waves generate electricity by turning a ... ...
Floating generator
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... generators are tuned by water running downhill
Hydroelectricity
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A ... power station traps each high tide and uses it to turn ...
Tidal and generators
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Solar ... are flat solid cells that convert solar energy directly into ...
Cells and electricity
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Solar ... panels use the Sun's energy to ... water directly
Heating and heat
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... energy comes from the energy released by ... substances deep inside the Earth
Geothermal and radioactive
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Water pumped into ... rocks underground produces steam to drive turbines and generate ...
Hot and electricity
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Nuclear fuels produce ... waste
Radioactive
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Renewable energy resources can affect ... and ... life
Plant and animal
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The ... of a sound increases as the ... of the wave increases
Loudness and amplitude
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Waves can be ...
Reflected
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Angle of incidence= angle of ...
Reflection
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The narrower the gap the ... the diffraction
Greater
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The normal line always has an angle of ...
90 degrees
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Sound waves are vibrations in a ...
Substance
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Sound waves ... travel through a vacuum
Cannot
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What is the order of the electromagnetic spectrum?
Radio-microwave-infrared-visible light-ultraviolet-x-rays-gamma rays
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White light contains all the colours of ... light
Visible
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Optical fibres transmit are very thin ... fibres that are used to transmit signals by ... and ... radiation
Transparent, light and infrared
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Speed of a wave=...times...
Frequency and wavelength
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All types of ... waves travel at the ... speed through a ...
Electromagnetic, same and vacuum
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Electromagnetic waves are ...
Transverse
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Sound waves are ...
Longitudinal
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Mechanical waves may be either ... or ...
Transverse and longitudinal
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The range of human hearing is about ... Hz to ... Hz
20 and 20000
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Hertz shortened is Hz and is used to measure ...
Frequency of a wave
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The pitch of a sound increase as the ... of the wave increase
Frequency
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Power is what?
The rate of the transfer of energy
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Power= ... divided by ...
Energy and time
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Energy is measured in ...
Joules (J shortened)
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Time is measured in
Seconds (s shortened)
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Efficinecy= ... power out divided by ... power in times 100%
Useful and total
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Kilowatt-hour shortened is ...
kWh
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Energy (kWh)=...(kW) times ... (h)
Power and time
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Earth wires are what colour/s
Green and yellow
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Neutral wires are what colour?
Blue
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Live wires are what colour?
Brown
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A fuse contains a ... wire and heats up, melts, and cuts off the ... if the ... it too large
Thin, current and current
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A fuse is always fitted in series with the ... wire. This cuts the appliance off from the ... wire if the fuse blows.
Live and live
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A ... breaker is an electromagnetic switch that opens (trips) and cuts off the current if too much current passes through the circuit ...
Circuit and breaker
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Electrical power supplied is measured in ...
Watts
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Watts=...(amperes) times ... ... (volts)
Current and potential difference
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An electric current is the ... of flow of ...
Rate and charge
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Charge is measured in ...
Coulombs
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J=... ... (volts) times ... ... (coulombs)
Potential difference and charge flow
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Electrical faults can cause ... and ... which are dangerous
Shocks and fires
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When choosing an electrical appliance the ... and ... rating need to be considered
Power and efficiency
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You need enough carbohydrates in your balanced diet to ... ...
Release energy
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You need enough fats in your balanced diet to ... ... and release ...
Keep warm and energy
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You need enough protien in your balanced diet for ..., cell ... and ... replacement
Growth, repair and cell
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You need enough fibre in your balanced diet to keep everything moving ... through your ... system
Smoothly and digestive
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You need enough vitamins and mineral ions in your balanced diet to keep your ..., ..., ... and everything else generally healthy
Skin, bones and blood
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Energy fuels the ... reactions in your body
Chemical
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Reactions in your body are called ...
Metabolism
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The speed of metabolism is ... rate
Metabolic
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Muscle needs more ... than ... tissue
Energy and fatty
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Men generally have higher metabolic rates than women because they're ...
Bigger
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Genetic factors can affect a persons ... rate
Metabolic
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Exercise can boost your resting metabolic rate because it ... muscle
Builds
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More energy means ... chemical reactions (metabolic rate) within a persons body
Faster
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Health is affected by ..., ... and ... factors
Diet, exercise and inherited
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Malnourished people can be ... or ...
Fat and thin
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Calories is measured in ...
Kcal
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Kilojoules is measured in
kJ
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The two main types of pathogen are ... and ...
Bacteria and virus
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Bacteria are very small ... cells
Living
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Viruses are ... cells
Not
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White blood cells ... foreign cells and ... them
Engulf and digest
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Cell damage caused by viruses in what makes you feel ...
Ill
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White blood cells produce ... and ... to combat antigens on bacteriums and toxins (poisons)
Antibodies and antitoxins
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Antibiotics only kill or inhibit the growth of bacteriums and not ...
Viruses
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Vaccinations can kill the microorganisms of ... bacteriums and viruses
Both
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Vaccinations involve ... a dead or inactive pathogen of a particular infection that have antigens which can only be connected to by specific ...
Injecting and antibodies
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Vaccinations increase antibody and antitoxin production from your ... blood cells
White
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Booster injections may be required to once again ... levels of antibodies
Increase
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Painkillers just ... symptoms they don't actually tackle the problem causing the ...
Relieve and disease
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Antibiotics don't kill your own cells whilst killing ...
Bacteria
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Viruses reproduce using your own ... cells
Body
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Bacteria can double in number every ... ...
20 minutes
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Bacteria can ... which can sometimes mean they're resistant to the ... originally designed to kill them
Mutate and antibiotic
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MMR stands for what?
Mumps, measles and rubella
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MRSA stands for what?
Methicillin-resistant Staphylococcus aureus
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Resistant strains developed by bacteria will survive and ... which is an example of ... selection
Reproduce and natural
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You can grow bacteria on agar jelly plates with a ... lid and steralised ... and kept at 25 degrees
Cellotaped and equipment
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Ignas Semmelweiss introduced antisepics by making doctors wash their ... with a ... solution
Hands and steralised
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The five sense organs are what?
Eyes, ears, nose, tongue, and skin.
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CNS stands for what?
Central nervous system
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Synapses connect ...
Neurones
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Reflexes help prevent ...
Injury
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Hormones are chemical messengers sent in the ...
Blood
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Oestrogen is produced in the ... in men and the ... in women
Testes and Ovaries
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Homones can be used to ... and ... fertility
Reduce and increase
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Auxin is a ... growth hormone
Plant
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Shoots grow ... light and ... from gravity
Towards and away
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Roots grow towards ... and ...
Gravity and moisture
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Plant hormones have uses in ...
Agriculture
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Ion content is regulated by the ...
Kidneys
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Water is lost from the body through ..., ..., ... and ...
Sweat, breath, urine and excretion.
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Body temperature is controlled by the ...
Brain
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Drugs change your ... ...
Body chemistry
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Drugs can be ..., ... or performance-enhancing
Medicinal and recreational
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Drugs have to be tested before ...
Use
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Recreational drugs can be ... or ...
Illegal and legal
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Desert animals have adapted to ... water and keep ...
Save and cool
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Arctic animals have adapted to reduce ... ...
Heat loss
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Some plants and animals have adapted to deter ...
Predators
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Organisms compete for ... to survive
Resources
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Environmental changes affect ...
Populations
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Pyramids of biomass express ...
Food chains
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All energy that living things have and use comes from the ...
Sun
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The carbon cycle shows how carbon is ...
Recycled
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Different genes cause ... variation
Genetic
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Sexual reproduction produces genetically ... cells
Different
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Asexual reproduction produces genetically ... cells
Identical
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Cloning has ... issues
Ethical
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Genetic engineering uses ... to cut and paste ...
Enzymes and genes
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Genes can be transferred into ... and ...
Animals and plants
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All organisms are ...
Related
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Oppostion to Darwin included ... ... and ... ... ...
Religious groups and Jean-Baptiste Lamarck
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Lamarck's theory was passed on ...
Characteristics
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Religious groups believed evolution was the work of ...
God
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The nucleus of an atom contains ... and ...
Protons and neutrons
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Protons are ... charged
Positively
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Neutrons have ... charge
No
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Electrons are ... charged
Negatively
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A nucleaus of an atom is positively charged overall due to the ...
Protons
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Overall an atom is ... due to the ... nucleus and negative ...
Neutral, positive and electrons
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Shells of an atom contain ...
Electrons
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No. of protons=no. of ...
Electrons
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Elements consist of one type of ... only
Atom
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The periodic table contains ...
Elements
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Show the symbols for carbon, oxygen, magnesium, sodium, iron and lead.
C, O, Mg, Na, Fe and Pb
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Only 2 electrons can fit in the ... shell of an atom
First
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The second shell can only contain ... elections in an atom
8
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The 3rd shell of an atom can only contain ... electrons
8
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Atoms join together to make ...
Compounds
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A formula shows what atoms are in a ...
Compound
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Atoms aren't lost of ... in chemical reactions
Made
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Limestone is mainly ... ...
Calcium carbonate
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Calcium oxide reacts with ... to produce calcium hydroxide
Water
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Ores contain ...
Metals
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Metals are ... from their ores ...
Extracted and chemically
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Some metals can be extracted by reduction with ...
Carbon
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Some metals have to be extracted by ...
Electrolysis
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Copper is purified by ...
Electrolysis
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Electrolysis means ... ... with electricity
Splitting up
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You can extract copper from a solution using a ... reaction
Displacement
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Copper-rich ores are in ... supply
Short
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Recycling metals and other substances can be more beneficial for the ... and ... of nations
Environment and economies
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Name the three characteristics/properties of metals
Strong, bendy and great conductors of electricity
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An alloy is a mix of 2 or more ... or a mix of a metal and non-metal
Metals
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Alloys are ... than pure ...
Harder and metals
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Most iron is converted into ...
Steel
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Crude oil is a mixture of ...
Hydrocarbons
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Crude oil is split using fractional ... in a fractioning ...
Distillation and column
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The longer the molecule of hydrocarbons the greater the ... required to split the hydrocarbons
Temperature
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Crude oil is mostly ...
Alkanes
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Crude oil can be split into its hydrocarbons to provide different ... for human life
Uses
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Bitumen is a hydrocarbon used for laying ...
Roads
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Crude oil is non-renewable and will one day ... ...
Run out
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Burning fossil fuels releases ... and ...
Gases and particles
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Sulfer dioxide causes ... ...
Acid rain
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You can reduce acid rain by reducing ... ...
Sulfur emissions
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Increasing carbon dioxide causes ... ...
Climate change
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Particles cause ... ...
Global dimming
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Cracking means splitting up ... ... ...
Long-chain hydrocarbons
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Splitting up long chain hydrocarbons is don by passing ... over a hot ...
Vapour and catalyst
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Alkenes have a C=C ... ...
Double bond
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Ethene can be reacted with ... to produce ...
Steam and ethanol
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Ethanol can also be produced from ... ...
Renewable resources
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Alkenes can be used to make ...
Polymers
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The process of making polymers is called ...
Polymerisation
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Polymerisation means joining together small alkene molecules to form very large molecules called ...
Polymers
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Small alkene molecules are known as ...
Monomers
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If you join many propene moleculcules you get ...
Polypropene
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Poly means ...
Many
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Polymers are cheap but most don't ... . They're hard to get ... ...
Rot and rid of
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Oils can be extracted from plants. Vegetable oils are used in ...
Food
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Vegetable oils can also be used to produce ... for vehicles
Fuels
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Hydrogenation means hardening liquidised unsaturated vegetable oils with ... in the prescence of a ... catalyst at about ...
Hydrogen, nickel and 60 degrees celcius
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Emulsions can be made from ... and ...
Oil and water
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Some foods contain ... to help ... and water mix
Emulsifiers and oil
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Alfred Wegener developed the theory of ... ...
Continental Drift
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Continental Drift shows how continentents were once ...
Connected
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Fossils of the same species can be found in different ... . For example Africa and South America
Continents
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Africa's ... coast and South America's ... coast fit like a jigsaw
Eastern and western
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Also there were matching ... in rocks in different continents
Layers
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Wegener published his theory of Continental Drift in ...
1915
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The Earth's crust is made of ... ...
Tectonic plates
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When tectonic plates collide or move volcanoes ... and ... occur
Errupt and earthquakes
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Convection currents in the Earth's ... cause the tectonic plates to move
Mantle
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Tectonic plates are situated in the Earth's upper ... and ...
Mantle and crust
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The Earth's structure consists of an ... ..., ... ..., ... and ...
Inner core, outer core, mantle and crust
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Scientists can ... eruptions and ... by monitoring the behaviour of volcanoes and activity of the mantle
Predict and earthquakes
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The first phase of the atmosphere's evolution was what?
Volcanoes gave out gases
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The second phase of the atmosphere's evolution was what?
Green plants evolved and produced oxygen
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The third phase of the atmosphere's evolution was what?
Ozone layer allowed the evolution of complex animals
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The Earth has all the ... humans need
Resources
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Primordial soup is one theory of how ... on Earth was formed
Life
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Heat is transferred by ..., ... and ...
Radiation, conduction and convection
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Heat radiation is the transfer of heat energy by ... ...
Infrared radiaton (IR shortened)
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Conduction and ... involve the transfer of energy by ...
Convection and particles
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Conduction is heat tranfer in ...
Solids
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Convection is heat tranfer in ...
Liguids and gases
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Liquids and gases are ...
Fluids
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IR can be emitted by ..., ... and ...
Solids, liquids and gases
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Any object can absorb and emit ...
IR
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The bigger the ... difference between an object and its surroundings the ... energy is transferred by ...
Temperature, faster and heating
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IR is ... of ... ...
Emission and electromagnetic waves
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..., ... surfaces absorb IR much better than light, shiny surfaces. They also ... much more IR
Dark, matt and emit
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..., ... surfaces reflect a lot of IR falling on them
Light and shiny
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The three states of matter are ..., ... and ...
Solids, liquids and gases
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Describe the characteristics of a solid
Close together and fixed particles with little energy and can only vibrate
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Describe the characteristics of a liquid
Weak forces betwen particles with irregular arrangements that move in random directions at low speeds
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Describe the characteristics of a gas
More energy than particles in a solid and gas and move in random directions at high speeds
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Conduction of heat occurs mainly in ...
Solids
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Metals are good conductors because of their ... electrons
Free
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Convection of heat is in ... and ... only
Liquids and gases
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Condensation is when ... turns to a liquid
Gas
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When humans and animals sweat they're ... down their bodies
Cooling
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There are 5 main ways to reduce heat transfer in the home. These are loft ..., ... ... tank jacket, ... glazing, ... proofing and cavity ... insulation
Insulation, hot water, double, draught and wall
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Specific heat capacity tells you how much ... stuff can ...
Energy and store
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Specific heat capacity formula=energy transferred=...times...times..
Mass, specific heat capacity and temperatue change
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Mass is usually represented in ...
Kilograms (kg shortened)
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Heaters have ... heat capacities to store lots of ...
High and energy
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Specific heat capacity is represented in ...
J/kgdegreesC
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The nine types of energy are what?
Electrical, light, sound, kinetic, nuclear, thermal, GPE, elastic potential and chemical
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Kinetic energy is also known as ... energy
Movement
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Electrical energy is whenever a ... flows
Current
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Light energy comes from the ... and other ... sources
Sun and light
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Sound energy comes from anything ...
Noisy
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Kinetic energy comes from anything that ...
Moves
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Nuclear energy is released only from ... ... stations
Nuclear power
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Thermal energy is also known as ... energy
Heat
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Thermal energy flows from ... objects to colder ones
Hot
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GPE is possesed by anything that can ...
Fall
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Elastic potential energy is anything that can ... and return to its previous state
Stretch
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Chemical energy is possesed by foods, ... and batteries etc
Fuels
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Potential and chemical energy are forms of ... energy
Stored
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Stored energy means it is ... to happen
Waiting
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Energy can be ... usefully from one form to another and ... or dissipated
Transferred and stored
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Energy can never be ... or ...
Created and destroyed
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Energy is only useful when it can be ... from one form to another
Converted
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Efficiency=useful energy ... divided by total energy ...
Out and in
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Efficiency also=useful power ... divided by total power ...
Out and in
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Wasted energy means you can't do anything ... with it
Useful
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Sometimes waste energy can actually be ...
Useful
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In sankey diagrams the thickness of the arrow represents the ... of ...
Amount and energy
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Energy=power times ...
Time
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Renewable energy resources will ... run out
Never
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Biofuels are made from ... and ...
Plants and waste
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Electricity is distributed by the ... ...
National grid
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All waves have an ..., a ... and a ...
Amplitude, wavelength and frequency
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Wave speed= ... times ...
Frequency and wavelength
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Transverse waves have ... vibrations
Sideways
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Longitudinal waves have vibrations along the same ...
Line
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All waves can be ..., ... and ...
Reflected, refracted and diffracted
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Diffraction is waves ... out
Spreading
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Changing the speed of a light wave can change its ...
Direction
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Radio waves are mainly used for ...
Communication
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Microwaves are mainly used for satellite ... and mobile phones
Communication
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Infrared waves are used for ... controlls and optical ...
Remote and fibres
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Visible light is used for ...
Photography
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Sound waves can reflect and ...
Refract
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The higher the frequency of a sound wave the higher the ...
Pitch
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Animal cells have what 5 feartures?
Nucleus, cell membrane, ribosomes, cytoplasm and mitochondria
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Plant cells contain what 6 feartures?
Nucleus, cell wall, cell membrane, cytoplasm, vacuole and chloroplasts
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Nucleus controls the activities of the ... and contains ... material
Cell and genetic
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The cytoplasm contains a gel like substance that contains ... which control ... reactions reactions in the cytoplasm
Enzymes and chemical
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Enzymes are made of ... and ... are made of amino acids
Protiens and protiens
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The cell mambrane holds the cell ... and controls what goes ... and ...
Together and in and out
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Diffusion is where ... spread out from an area of ... concentration to an area of ... concentration through the cell ...
Particles, high, low and membrane
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The mitochondria is where ... reactions take place for respiration. Respiration releases ... that the cell needs to work
Chemical and energy
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The ribosomes are where ... are made in the cell
Protiens
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The cell wall is made of ... and it ... the cell and ... it
Cellulose, supports and strengthens
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The vacuole contains cell ... which is a weak solution of ... and ...
Sap, sugar and salts
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The chloroplasts are where ... occurs, which makes ... for the plant and it contains a green substance called ...
Photosynthesis, food and chlorophyll
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Yeast is a single ... organism
Celled
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Bacterial cells have no ...
Nucleus
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Substances have to be ... before they can diffuse in and out of the cell ...
Dissolved and membrane
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Red blood cells carry ... around the body through the blood to muscles and other bodily areas
Oxygen
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The male ... cell fertilises the female ... cell during reproduction
Sperm and egg
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Cells are organised into ...
Tissues
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Tissues are organised into ...
Organs
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Organs are organised into ...
Organ systems
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Name two organ systems?
Reproductive system and digestive system
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What is the equation for photosynthesis?
Carbon dioxide+water arroe with sunlight and chlorophyll goes to glucose+oxygen
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Photosynthesis produces glucose using ...
Sunlight
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Lack of light and carbon dioxide ... ... the rate of photosynthesis
Slows down
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What is the shortened version for carbon dioxide?
CO2
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How do plants use glucose?
For respiration, to make cell walls, to make protiens and to store it in seeds and as starch
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You can artificially creat the conditions for ... in a greenhouse
Farming
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Organisms live in different places because of the ... varies
Environment
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Enzymes are basically ... produced in living things
Catalysts
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For enzymes to work effectively they need the correct ... and ... level
Temperature and pH
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A catalyst is a substance that ... the speed of a reaction without being ... or ... ... in the reaction
Speeds, changed and used up
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Enzymes have an ... site which can connect to specific substances in ...
Active and reactions
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If the temperatue or pH level is too high then the enzymes bonds ... which causes the enzyme to ... and not catalyse reactions
Break and denature
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Digestive enzymes break down ... molecules into ... ones
Big and smaller
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Amylase converts ... into ...
Starch and sugars
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Protease converts ... into ...
Protiens and amino acids
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Lipase converts ... into ... and ... ...
Lipids, glycerol and fatty acids
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Bile neutralises the stomach acids and ... fats
Emulsifies
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Bile is produced in the ...
Liver
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Bile is stored in the ... ...
Gall bladder
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Amylase is produced in the ... ...
Salivary glands
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The gullet is also known as the ...
Oesophagus
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The protease enzyme is called ...
Pepsin
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The stomach contains ... acid to kill ... and to provide the correct ... level for enzymes to work
Hydrochloric, bacteria and pH
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What three enzymes does the pancreas produce?
Amylase, protease and lipase
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The rectum is where faeces is ... and faeces exits the body through the ...
Stored and ****
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Respiration is the process of releasing ... from ... which goes on in every cell
Energy and glucose
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Name the two types of respiration?
Aerobic and Anaerobic
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What is the difference between aerobic and anaerobic respiration?
Aerobic involves the prescence of oxygen and anaerobic doesn't
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The aerobic respiration equation is what?
Glucose+oxygen arrow carbon dioxide+water+energy
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Exercise increases the ... rate
Heart
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Glycogen is used during ...
Exercise
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Some ... from food is stored as glycogen
Glucose
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Name the anaerobic respiration equation?
Glucose arrow energy+lactic acid
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Anaerobic respiration leads to an ... debt
Oxygen
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Enzymes are used in ... detergents
Biological
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Enzymes are used to change ...
Foods
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Non-biological detergents don't contain ...
Enzymes
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Chromosomes are really long molecules of ...
DNA
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A gene codes for a specific ...
Protien
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Everyone has ... DNA
Unique
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Every human cell contains ... pairs of chromosomes with a total of ... chromosomes in each cell
23 and 46
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DNA can be used to solve ... by using DNA ...
Crimes and fingerprinting
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Mitosis makes new cells for ... and ...
Growth and repair
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Asexual reproduction also uses ... like sexual reproduction
Mitosis
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Sex cells are also known as ...
Gametes
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Gametes have half the usual number of ...
Chromosomes
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Meiosis produces cells which have half the normal number of ...
Chromosomes
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After two gametes join at fertilisation the cell then grows by repaetedly dividing by ...
Mitosis
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Differentiation is the process of a cell becoming ... to perform a particular function
Specialised
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Stem cells are cells that are ... but can turn into other types of cell depending on the ... they're given
Undifferentiated and instructions
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All men have ... ... chromosomes
XY
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All women have ... ... chromosomes
XX
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Genetic diagrams show what potential ... animals could have/create
Offspring
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Cystic fibrosis is caused by a ... allele which means the disease has carriers
Recessive
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Diseases caused by a dominant alleles don't have ...
Carriers
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Fossils are the remains of ... and ...
Plants and animals
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Extinction happens if a species can't evolve ... enough
Quickly
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Speciation is the development of a new ...
Species
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Isolation and natural selection lead to ...
Speciation
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The mass number is the total number of ... and ...
Protons and neutrons
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The atomic number is the number of ...
Protons
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Compounds are ... bonded
Chemically
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Isotopes are different ... forms of the same element which have the same number of protons but a different number of ...
Atomic and neutrons
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Ionic bonding is the transferring of ... to form charged particles
Electrons
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Charged particles are called ...
Ions
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Ionic compounds have a regular ... structure
Lattice
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Ionic compounds all have similar ...
Properties
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The similar properties of ionic compounds are what?
High melting and boiling points due to the strong attraction between ions
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Ionic compounds dissolve easily in ...
Water
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Covalent bonds involve the sharing of ...
Electrons
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Giant covalent structures are ...
Macromolecules
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The rate of reaction depends on what 4 things?
Temperature, concentration, catalyst and surface area of solids
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State three ways of how you can measure the rate of reaction
Precipitation, change in mass and the volume of gas given off
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More collisions between partciles in a shorter period of time increase the ... of ...
Rate of reaction
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Higher concentration/pressure increase ...
Collisions
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Larger surface increases ...
Collisions
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Catalysts help reduce ... in industrial reactions
Costs
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In an exothermic reaction ... is given ...
Heat and out
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In an endothermic reaction ... is taken ...
Heat and in
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Reversible reactions can be ... and ...
Exothermic and endothermic
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The pH scale goes from 0-14. What number end is acid? What number is neutral? What number end is alkalis?
0, 7 and 14
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7 is neutral on the pH scale. What is this substance?
Water
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An indicator is a dye that changes ... to estimate the pH level of a solution
Colour
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Acids and bases ... each other
Neutralise
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Metals react with acids to give ...
Salts
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Hydrochloric acid will always give ... salts
Chloride
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Metal oxides and metal hydroxides are ...
Bases
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You can make soluble salts using an ...
Alkali
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You can make insoluble salts using a ... reaction
Precipitation
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Soluble means what?
The substance can be dissolved in water
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Insuluble means what?
The substance can't be dissolved in water
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Electrolysis means what?
Splitting up with electrons
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Electrolysis reactions involve ... and ...
Oxidation and reduction
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Oxidation is the gain of ... or a loss of ...
Oxygen and electrons
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Reduction is a gain of ...
Electrons
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Reactivity affects the ... formed by electrolysis
Products
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Other cards in this set

Card 2

Front

What is the lifecycle of a big mass star?

Back

Protostar-main sequence star-red supergiant-supernova-neutron star-black hole (if big enough).

Card 3

Front

A supernova is a massive ... of a supergiant after it ...

Back

Preview of the front of card 3

Card 4

Front

Elements as heavy as ... are formed ... stars as a result of nuclear ...

Back

Preview of the front of card 4

Card 5

Front

Elements ... than iron are formed in ...

Back

Preview of the front of card 5
View more cards

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