Microorganisms Worksheet
Explore the tiny world of microorganisms with this Grade 3 science worksheet, learning about bacteria, viruses, and fungi.
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Microorganisms: The Tiny World
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Read each question carefully and answer to the best of your ability. Some questions may require you to look at the image provided.
Microorganisms are tiny living things that are too small to be seen with just our eyes. We need a special tool called a microscope to see them! Some microorganisms are good for us, and some can make us sick.
1. What tool do we need to see microorganisms?
Telescope
Microscope
Binoculars
Magnifying glass
2. Which of these is a type of microorganism?
Fish
Bacteria
Bird
Tree
3. Microorganisms are so tiny, we cannot see them with our eyes.
4. Some microorganisms can make us .
5. A microscope helps us see things that are very .
6. All microorganisms are bad for us.
True
False
7. We can see bacteria without a microscope.
True
False
8. Name one type of microorganism.
9. Why are some microorganisms helpful?
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