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BBC science clips - gases around us
Follow the instructions to heat up the beaker of liquid and see what happens. Click the forwards arrow at the top of the diagram for the next instruction. Don't forget to do the quiz!

Changing states (Bitesize)
Read the information on changing states. Then do a fun activity and try the quiz.

Solids, liquids and gases (Bitesize)
Read the information on solds, liquids and gases. Then do the fun activity and try the quiz.

Materials and their properties
Move through the information screens using the arrows at the bottom. On page 2 you can launch the 'Grouping materials' database activity to find out more about different materials and their properties. On page 3 you can test your knowledge by launching the 'Materials Mission' game.

Quiz - solids, liquids and gases
A quiz to test your knowledge of solids, liquids and gases.

Outrageous ooze
Is this a solid or a liquid? Investigate!

Test the speed of water molecules
This experiment shows if hot water molecules really move faster than cold ones. Pour some water, drop in some food coloring and compare results.

The properties of solids, liquids and gases
Watch cartoons that explain the difference between solids, liquids and gases. Find out about how a solid changes to a liquid and then a gas. Learn about dissolving.

Heavy on Gases
Watch this animation to learn that gases have mass and weight.

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