Cambridge Secondary (7-9). Stage 7. Science. Learner's Book - Unit 7: Microorganisms in the environment - Question 29

What can microorganisms decay?

Here are three questions. First, think quietly about the answers to the questions on your own. When your teacher tells you to, turn to your partner and discuss your ideas. Be ready to share your answers with the rest of the class.

Think of two more things that are made of organic matter, and two more things that are not made of organic matter.