Year 4 states of matter

What is a solid?

• It is firm and stable in shape.

• It is a substance that flows freely but is of constant volume.

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

Tags

NGSS.MS-PS1-4

What is a gas?

• It is firm and stable in shape.

• It is a substance that flows freely but is of constant volume.

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

Tags

NGSS.MS-PS1-4

What do these images show you in order?

• Liquid, gas and solid.

• Gas, solid and liquid.

• Solid, liquid and gas.

• Liquid, solid and gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens when a liquid is heated?

• It changes to a solid.

• It changes to a gas.

• It disappears.

• It explodes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

• Evaporation

• Precipitation

• Condensation

• Vapour

Tags

NGSS.MS-PS1-4

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

• Evaporation

• Precipitation

• Vapour

• Condensation

Tags

NGSS.MS-PS1-4

When does condensation happen?

• When a gas escapes outside.

• When a gas is heated.

• When a gas is cooled.

• When a gas touches a surface.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Which of the following statements are true? (select 2)

• When molecules are heated, they expand.

• When molecules are excited, they explode.

• When molecules are heated, they contract.

• When molecules are cooled, they contract.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which conditions would dry a wet material best? (Select 2)

• A cold environment.

• A wet environment.

• A warm environment.

• A sunny environment.

When completing an experiment, what is a fair test?

• Ensuring everything stays the same.

• Changing lots of different variables.

• Changing only 1 variable, everything else stays the same.

• Changing 2 or 3 variables.