All About Plankton
A science worksheet for Grade 4 students to learn about plankton, their types, and their importance in the ocean.
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All About Plankton
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Read each question carefully and answer to the best of your ability. Some questions may ask you to look at an image.
Plankton are tiny organisms that float in the ocean and freshwater. They are very important for life on Earth!
1. What does the word 'plankton' mean?
Big fish
Wanderer or drifter
Fast swimmer
Giant whale
2. Which of these is NOT a type of plankton?
Phytoplankton
Zooplankton
Geoplankton
Bacterioplankton
3. Phytoplankton are like tiny plants and get their energy from the .
4. Zooplankton are like tiny animals and eat or other zooplankton.
5. Plankton are at the of the ocean food chain.
6. All plankton can swim very fast against ocean currents.
True
False
7. Whales eat a lot of plankton.
True
False
8. Why are plankton important for other animals in the ocean?