| Carbon reacts with oxygen to form an oxide a) what is the name of the oxide? b) What is reaction like this called? |
| How do we test for the presence of water? |
| Define the word 'fuel'. |
| Explain how you could use a metal to tell the difference between water and dilute acid. |
| Describe the process of photosynthesis. Use a word equation to help. |
| What is biodiversity and why is it important? |
| What is meant by sublimation? |
| Some people stick aluminium foil onto the walls behind radiators. Suggest how this helps to keep the house warm. |
