Unit 1 RevisionUnit 1 Revision

S. C. FordwhalleyS. C. Fordwhalley

Solids, Liquids, GasesSolids, Liquids, Gases

1.1. Which state of matter is hard, cannot be poured Which state of matter is hard, cannot be poured and does not take the shape of a container?and does not take the shape of a container?

2.2. Which state of matter can be poured, will take the Which state of matter can be poured, will take the shape of a container but cannot be compressed?shape of a container but cannot be compressed?

3.3. Which state of matter can be poured, will take the Which state of matter can be poured, will take the shape of a container and can be compressed?shape of a container and can be compressed?

4.4. Which state of matter has particles with the most Which state of matter has particles with the most energy?energy?

5.5. Which state of matter has particles with the least Which state of matter has particles with the least amount of energy?amount of energy?

Using Bunsen BurnersUsing Bunsen Burners

1.1. Open the air hole slowly to change the flame type.Open the air hole slowly to change the flame type.

2.2. Get a ‘light’ for the splint.Get a ‘light’ for the splint.

3.3. Connect the rubber tubing firmly to the gas tap.Connect the rubber tubing firmly to the gas tap.

4.4. Put on your safety glasses.Put on your safety glasses.

5.5. Place Bunsen burner on a heatproof mat.Place Bunsen burner on a heatproof mat.

6.6. Turn the gas tap and light the burner.Turn the gas tap and light the burner.

7.7. Make sure the air hole is closed.Make sure the air hole is closed.

Put these sentences into the correct order to safely light a Bunsen burner:

If the air hole is fully open will the flame be the hottest or the coolest flame?

Expanding and contractingExpanding and contracting

1.1. If we heat something up, will it expand or If we heat something up, will it expand or contract? Can you explain why for a contract? Can you explain why for a bonus mark?bonus mark?

2.2. What happens if we cool an object What happens if we cool an object down? Does it expand or contract? Can down? Does it expand or contract? Can you explain your answer for a bonus you explain your answer for a bonus mark?mark?

3.3. Where is expansion used in every day Where is expansion used in every day life?life?

Changes of stateChanges of state

SOLID GASLIQUID

1 2

3 4

1. Write down which word should go into each stage of these changes of state (BOILING, MELTING, FREEZING, CONDENSING)

2. What do we need to do to get a liquid from a solid?

3. What do we need to do to get from a gas to a liquid?

DiffusionDiffusion

1.1. Explain why the particles move as they Explain why the particles move as they do in this animationdo in this animation

Does it dissolve?Does it dissolve?

1.1. What do we call a solid that will dissolve?What do we call a solid that will dissolve?

2.2. What do we call a solid that will not What do we call a solid that will not dissolve?dissolve?