1. This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals States of matter Answers Subject:Science Age groups:8 – 11, 12 - 14 Topic:Solids, liquids and gases EAL Nexus resource Licence information | This resource is free to use for educational purposes. © British Council 2014 Source | This resource was originally developed by Alison Fisher and has been adapted by EAL Nexus.

2. Your diagram should look like this: States of matter getting hotter getting colder melting evaporating freezing condensing solidliquidgas

3. Solids The particles in a solid are tightly packed and in a regular pattern. They vibrate and are held together with strong bonds. The solid cannot change shape. You cannot squash a solid. 123 456 789 101112 4 1 7 10

4. Liquids The particles in a liquid are not so tightly packed. They can move past each other. The liquid changes shape to fit its container. You cannot squash a liquid. 123 456 789 101112 5 2 8 11

5. Gases The particles in a gas are widely spaced. They can move freely. The gas fills its container. You can squash a gas. 123 456 789 101112 6 3 9

6. Completing the phrases with solid, liquid or gas:  When a melts, it becomes a liquid.  When a condenses, it becomes a liquid.  When a evaporates, it becomes a gas.  When a freezes, it becomes a solid.  The molecules move quickly in a  The molecules move past each other in a  The molecules can only vibrate in a  You can pour a and a into a different container. solid gas liquid gas. liquid. solid. gasliquid

7. Completing the phrases with solid, liquid or gas:  You cannot change the shape of a  A will change shape to fit its container.  A will fill the container where you put it.  You can only squash a  The particles are tightly packed in a  The particles are not so tightly packed in a  The particles are widely spaced in a solid. liquid gas gas. solid. liquid. gas.

8. Writing sentences using the tables A liquid can change shape but it cannot be squashed or A liquid can flow but it cannot be squashed. A gas can change shape and it can be squashed or A gas can flow and it can be squashed.

9. Writing sentences using the tables The molecules in a solid are tightly packed and can only vibrate. The molecules in a liquid are further apart and can move past each other. The molecules in a gas are widely spaced and can move freely. A solid cannot change shape and it cannot be squashed. or A solid cannot flow and it cannot be squashed.

10. Putting the words in the correct order to make sentences When a solid melts, it becomes a liquid. When a gas condenses, it becomes a liquid. When a liquid evaporates, it becomes a gas. When a liquid freezes, it becomes a solid.