Science Homework #1: Year 9

Science Homework:  Year 9  (Mrs Downing)

How can we test for carbon dioxide gas?
What is the word equation for anaerobic respiration in humans?
Write a word equation for the reaction of sodium with water.
What is the difference between sexual and asexual reproduction?
Describe the process of photosynthesis. Use a word equation to help.
Microorganisms are an important part of an ecosystem because they are decomposers.  What does this mean?
Bacteria are prokaryotes.  Draw and label a diagram to show the main features of a bacterial cell.
Describe three ways in which we could use less fossil fuels and explain why it is important that we use less fossil fuels.