Front

What is matter?

Back

Matter is anything that takes up space and has weight.

Front

Which form of matter keeps its shape?

Back

Solid keeps its shape.

Front

Can solids change to liquids?

Back

Yes, solids can change to liquids.

Front

In which form of matter do the atoms freely move around?

Back

In gas, atoms freely move around.

Front

In which form of matter are the atoms packed tightly together?

Back

In solid, atoms are packed tightly together.

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume.

Front

What is a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume and expands to fill its container.

Front

What happens to the particles in a solid when it is heated?

Back

The particles in a solid vibrate faster and may change to a liquid.

Front

What happens to the particles in a liquid when it is cooled?

Back

The particles in a liquid slow down and may change to a solid.