Sticky Knowledge States of matter Year 4

Which of these statements is a property of a liquid?

• It keeps its shape unless a force is applied to it.

• It can be poured.

• It can be cut, squashed or torn.

• It's particles are spread out and they can move quickly in all directions.

What do we call it when materials change from solids to liquids or liquids to gases or gases to liquids or liquids to solids?

• changing material

• changing type

• changing state

• changing particles

At what temperature does ice melt at (in celsius)?

• 100

• 25

• 0

• -5

What is the process called when a liquid is made so cold that it becomes a solid?

• melting

• freezing

• dissolving

• evaporating

What happens to water at 100 degrees celsius?

• It boils and turns into a gas (water vapour)

• It boils and turns into a gas (water)

• It boils and turns into a solid (ice)

• It freezes and turns into a solid.

Water seeming to disappear from a puddle on a hot day is an example of.....

• melting

• freezing

• condensation

• evaporation

What is condensation NOT?

• When water vapour hits a cold surface and changes state into water.

• The opposite of evaporation

• When a liquid turns into a solid

• When thewindows and mirror in your bathroom feel wet after a shower/bath.

The hotter the temperature, the .......

• slower the rate of evaporation

• quicker the rate of evaporation

• quicker the ice will freeze

• slower the ice will melt