Science
- Created by: 11APhillips
- Created on: 29-11-16 16:26
View mindmap
- Science Mindmap
- 8L
- Compass has magnet which attracts to poles of the Earth
- Electromagnet is iron with coil around it
- Magnet created when electricity passed through the coil
- Can be turned on/off by stopping electricity
- To increase strength you increase turns on coil/increase strength of current
- 8K
- When candle burnt in front of glass, we see candle behind glass as well because light reflects and goes through glass.
- Sound created by vibration. Each sound creates different frequency
- Less air = higher pitch because less air to vibrate.
- 8E/G
- Atom = Single particle
- molecule = two or more atoms joined together
- Element = made of only 1 type of atom
- compound = different types of element
- Air is a mixture as elements not chemically bonded
- molecule = two or more atoms joined together
- Distillation - raising the temperature of a substance so that one part of it boils (removed as a gas) and the other stays as a liquid.
- E.G. Alcohol and water (alcohol boils at lower temp than water
- Chromatography
- substances that are more soluble travel further up special paper called chromatography paper, so they are separated
- Atom = Single particle
- 8J
- pressure=force/area
- use formula triangle to rearrange
- force pressure area
- use formula triangle to rearrange
- Turning moment=force * distance
- if a beam is balancing on a pivot, the force *distance on the left = the force * distance on the right
- a pivot is the point at which a lever moves.
- D1*F1 = D2*F2
- D = distance from pivot to object F= force labelled "N".
- if a beam is balancing on a pivot, the force *distance on the left = the force * distance on the right
- pressure=force/area
- 8H
- Order of things from the centre of the earth to space : learn
- inner core outer core mantle crust troposhere stratosphere mesosphere thermosphere
- a rock squashes to become sedimentary, is heated to become metamorphic, and is spewed from a volcano to become igneous. THIS IS THE ROCK CYCLE
- Limestone is formed from old sea shells. It has been squashed, so is sedimentary
- It contains calcium carbonate, which reacts with hydrochloric acid
- Calcium carbonate + hydrochloric acid -> calcium chloride + carbon dioxide + water
- CaCO3 + 2HCl -> CaCl2 + CO2 + H2O
- Calcium carbonate + hydrochloric acid -> calcium chloride + carbon dioxide + water
- It contains calcium carbonate, which reacts with hydrochloric acid
- Limestone is formed from old sea shells. It has been squashed, so is sedimentary
- Order of things from the centre of the earth to space : learn
- 8L
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