Solids, liquids and gases

Water is a ___________ .

• solid

• liquid

• gas

What gas floats around freely?

• Concrete

• Wood

• Fire

• Air

Solids, liquids and gases are all forms of ______________ .

• state

• object

• matter

• material

How do we change a solid into a liquid or a gas?

• Put it in water.

• By changing its temperature.

• By pushing it.

Water turns to ice at ______________ degrees celcius.

What happens to water if it is heated?

• Turns to a gas called water vapour.

• Turns into a lake.

• Turns to dust.

• Turns to a solid called plastic.

Some changes in matter can be reversed, this means ________________________________ .

• That they have gone backwards.

• Some of the parts are changed, others are not.

• The chemicals in them can never be changed back to how they were before.

• The chemicals can be brought back to how they were before.

Matter is another word for _______________________ .

• Just the food that we eat.

• The stuff that things are made of.

• Something that is not important.

If water is ___________ , it turns into a gas called water vapour.

Liquids turn into ________ if they are heated up to their boiling point.