Science Homework #2: Year 9

Science Homework:  Year 9  (Mrs Downing)

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.