Ice is a solid. Water is a liquid. Steam is a gas.
These three are common states of matter on Earth.
A solid, like an ice cube, keeps its shape.
A liquid flows. It takes the shape of its cup.
A gas spreads out. It fills the whole box it is in.
Heat water enough. It turns into a gas, called steam.
Evaporation is liquid water changing into water vapor, a gas.
Water vapor turns back to liquid water. That is condensation.
Ice floats on water.
Words to know
- solid: keeps its shape
- liquid: flows
- gas: spreads out
- steam: water as gas