Yr 7 Materials

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What is the change of state called when a gas turns into a liquid?

Condensing
What is the change of state called when a liquid turns into a gas?

Evaporating
What is diffusion?
- The movement of particles from a high concentration to a low concentration
Describe what a Melting Point is.

The temperature a solid turns into a liquid
Describe what a Boiling Point of a substance is.

The temperature a liquid turns into a gas
What is the change of state called when a liquid turns into soild?

Freezing or solidifying
What is the change of state called when a solid turns into a liquid?

Melting
Describe how the particles are arranged in a solid.
- The particles in a solid:
- are close together
- are arranged in a regular pattern
- are held together by strong forces called bonds
- vibrate in a fixed position
- cannot move from place to place
Describe how the particles are arranged in a liquid.
- The particles in a liquid are:
- close together
- arranged in a random way
- they can move around each other
- the bonds in a liquid are strong enough to keep the particles close together, but weak enough to let them move around each other..
How are the particles arranged in a gas?
- The particles in a gas are:
- far apart
- arranged in a random way
- can move quickly in all directions
- no bonds between the particles in a gas, so they are free to move in any direction.
What causes pressure?
- The movement of particles hitting the side of the container.
Describe how particles are arranged in a liquid.

Particles can move and they take the shape of the container they are in, there is some attraction between particles.
What state is this?

Solid
What state is this?

Liquid
What state is this?

Gas

Author:	HLHSscience
ID:	194646
Card Set:	Yr 7 Materials
Updated:	2013-07-30 10:58:37
Tags:	Chemistry Revision Materials
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Description:	Science Rotation 1 Revision Materials Year 7
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