Year 4 states of matter

Front

What is a solid?

Back

It is firm and stable in shape.

Front

What is a gas?

Back

It is an air-like substance which expands freely to fill any space.

Front

What do these images show you in order?

Back

Solid, liquid and gas.

Front

What happens when a liquid is heated?

Back

It changes to a gas.

Front

What is the process called when a liquid turns to a gas?

Back

Evaporation

Front

What is the process called when a gas turns to a liquid?

Back

Condensation

Front

When does condensation happen?

Back

When a gas is cooled.

Front

What is a fair test in an experiment?

Back

Changing only 1 variable, everything else stays the same.

Front

Why is it important to do a fair test?

Back

It gives us an accurate result, testing only 1 variable.