Solid, liquid, or gas?
An ice candy left on the table becomes a puddle.
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The idea
Most things are a solid, a liquid or a gas.
- A solid keeps its own shape.
- A liquid takes the shape of its container, like a glass. The amount of liquid stays the same.
- A gas spreads out to fill its container.
Heat can change a solid to a liquid. Heat can change a liquid to a gas. Ice is solid water. Warm it and it melts and becomes liquid water.
Liquid water slowly becomes a gas too. This is evaporation. The gas is water vapour. You cannot see it.