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What is the photosynthesis equation?
Glucose + Oxygen --> Carbon Dioxide + Water
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What is photosynthesis?
A chemical reaction in plants to create energy
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What would happen to the rate of photosynthesis if there was more light?
It would increase
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What is transpiration?
The process where water travels up the plant from its roots to leaves.
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Why do plants transpire?
To get water from the roots to the leaves for cooling down and for photosynthesis.
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What are two characteristics of a gas?
They occupy the volume given and they are easily compressed
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What is an element?
A substance that contains 1 type of atom
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What is an molecule?
2 or more atoms chemically bonded together
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What is a compound?
A substance made up of 2 or more different atoms
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Name a compound.
H2O, C02
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What three things is an atom made up of?
An electron, proton and neutron
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If an element's atomic number was 6, how many protons does it have?
6
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What three elements are magnetic?
Iron, cobalt, nickel
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What happens when hydrogen and oxygen are mixed?
Water is produced in a chain reaction
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What produced when you mix Carbon and Oxygen?
Carbon Dioxide
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Name the characteristics of Carbon Monoxide?
It's colourless, odorless, tasteless, toxic to humans, less dense than air.
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what are 3 magnetic materials?
nickel,cobalt and steel
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how is a permenant magnet created?
by heating a metal attracted to a magnet then when it has cooled the domains line up.
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how is a temporary magnet made?
a metal is attracted to a magnet then the domains line up and it is a temporary magnet.
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how can you vary the strength of a electro magnet?
the more volts used the more powerful the magnet.
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how is a magnet destroyed?
heated,hit or placed near other magnets
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if the PH scale was 3 is it acisic or an alkali?
acidic
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if the universal indicator made it green what would it be?
neutral
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what colour would a strong alkali be?
dark blue
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how does sound travel?
vibrating particles
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why cant sound travel through a vaccum?
because there is no particles
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which state does sound travel fastest through?
a solid
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why does lightning come before thunder?
because light travels faster than sound
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list three ways of heat transfer
convection conduction and radiation
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list the common food groups
carbohydrates,protein,fruit+veg,fats,dairy and sugar, vitamins and minerals, fibre
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give an example of a carbohydrate
bread
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give an example of a protein
Beef
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give an example of dairy
Milk
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What is the role of enzymes?
Breaks down the food
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How does breathing occur?
Air enters mouth, down the trachea, through the bronchi and then bronchi-holes and ends up in the alveoli
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How does oxygen get into the blood?
The oxygen diffuses across into the blood
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How are fossils formed?
A dead organism falls to the ground and covered by sediment, compressed under pressure and heat, bone degrades away and filled with cement-like stuff.
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Name a type of chemical weathering
Acid Rain
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List three main rock types
Metamorphic, Igneous, Sedimentary
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How is metamorphic rock made?
Sedimentary rock under pressure and heat
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How is igneous rock made?
Molten rocks cools to form crystals in rock
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What are volcanoes?
A large mound of earth with magma inside chambers
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How is a sound's volume linked to the wave amplitude?
The wave is taller if the sound is louder
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How is the sound's pitch related to the wave length?
The closer the peaks, the higher the pitch
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How does an ear hear sound?
The vibrations are picked up by the ear drum.
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Is a bee sting and acid or alkali?
Acid
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Other cards in this set

Card 2

Front

What is photosynthesis?

Back

A chemical reaction in plants to create energy

Card 3

Front

What would happen to the rate of photosynthesis if there was more light?

Back

Preview of the front of card 3

Card 4

Front

What is transpiration?

Back

Preview of the front of card 4

Card 5

Front

Why do plants transpire?

Back

Preview of the front of card 5
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