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Science 7th Grade Review

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are the three main parts that make up an ecosystem?

a)

Biotic, Abiotic, and Organic factors.

b)

Biotic, Ecology, Abiotic factors

c)

Biotic and Abiotic factors

d)

Abiotic and Ecology factors

2.

What are in the trophic levels

a)

Tertiary consumers

b)

Secondary consumers

c)

Primary consumers

d)

Producers

e)

None of the above

3.

What interaction is where both organisms are harmed?

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

4.

What is mutualism?

a)

Both Organisms Benefit

b)

One is harmed and one wasn't

c)

Both are harmed

d)

One unaffected and one benefits

5.

What is a food web?

a)

A graphic organizer that shows the flow of matter between organisms in an ecosystem.

b)

A graphic organizer that doesn't show the flow of energy and matter between organisms in an ecosystem.

c)

A graphic organizer that shows the flow of energy and matter between organisms in an ecosystem.

d)

A graphic organizer that shows the flow of energy between organisms in an ecosystem.

6.

What are the key parts of the carbon cycle?

a)

Photosynthesis, Decompostion, and Combustion

b)

Photosynthesis, Decompostion, and Respiration

c)

Photosynthesis and Combustion

d)

Decompostion and Combustion

7.

Which of these are photosynthesis?

a)
b)
c)
d)
8.

What are the indicators of chemical reactions?

a)

Change in Temperature, Release of a Gas, Change in Color, Change in Odor, and Formation of a precipitate

b)

Change in Temperature, Release of a Gas, Change in Color, Release of Light, Change in Odor

c)

Change in Temperature, Change in Color, Release of Light, Change in Odor, and Formation of a precipitate

d)

Change in Temperature, Release of a Gas, Change in Color, Release of Light, Change in Odor, and Formation of a precipitate

9.

Which equations follows respiration?

a)
b)
c)
d)
10.

Unbalanced equation?

a)
b)
c)