Plankton Power!
Explore the amazing world of plankton with this Grade 3 science worksheet, covering what plankton are, where they live, and why they are important.
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Plankton Power!
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Read each question carefully and answer to the best of your ability. Some questions may ask you to draw or fill in blanks. Good luck!
1. What are plankton?
Big fish that swim fast
Tiny living things that float in water
Rocks at the bottom of the ocean
Plants that grow on land
2. Plankton are divided into two main groups: and .
3. Plankton can be found in:
Only in oceans
Only in rivers
Oceans, lakes, and rivers
Only on land
4. True or False: Plankton can make their own food using sunlight.
True
False
5. Explain why plankton are important for other animals in the ocean.
6. Look at the image below. This is what some plankton look like under a microscope. Draw your own plankton in the box.
Match each word on the left with its description on the right.
7. Phytoplankton
a. Animals that eat plankton
8. Zooplankton
b. Plant-like plankton
9. Food Chain
c. Animal-like plankton