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Aquatic Ecosystems Worksheet

Explore the fascinating world of aquatic ecosystems, including freshwater and marine environments, their characteristics, and the organisms that inhabit them.

Grade 7 Science BiologyAquatic Ecosystems
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multiple-choiceFill in the BlanksTrue / FalseShort AnswerCustom

Standards

MS-LS2-1MS-LS2-2

Topics

aquatic ecosystemsfreshwatermarinebiologysciencegrade 7
7 sections · Free to use · Printable
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Aquatic Ecosystems Exploration

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Date:

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Read each question carefully and answer to the best of your ability. Good luck!

1. Which of the following is NOT a type of aquatic ecosystem?

a

Ocean

b

River

c

Desert

d

Lake

2. What is the primary difference between freshwater and marine ecosystems?

a

Temperature

b

Salinity

c

Depth

d

Location

3. The zone in an ocean where sunlight can penetrate is called the   zone.

4. Organisms that live on the bottom of an aquatic ecosystem are called  .

5. A body of flowing freshwater that moves towards an ocean or lake is a  .

6. All marine organisms can tolerate a wide range of salinity.

T

True

F

False

7. Ponds and lakes are examples of standing freshwater ecosystems.

T

True

F

False

8. Describe two abiotic factors that influence life in an aquatic ecosystem.

9. Explain the importance of estuaries as aquatic ecosystems.

10. Observe the pond ecosystem diagram below and answer the questions.

Pond Ecosystem Cross Section

a) Identify one producer shown in the pond ecosystem.

b) Identify one consumer shown in the pond ecosystem.