Energy Test Review

Energy Test Review

Assessment

Quiz

Science

7th Grade

Hard

NGSS
MS-LS2-3, MS-LS1-5, MS-LS1-6

+2

Standards-aligned

Created by

Falysha Williams

Used 17+ times

FREE Resource

Student preview

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33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
What would happen if pesticides drastically reduced the number of caterpillars in this food chain?
All populations would be relatively unaffected.
The strangler fig population would increase; the lizard population would decrease.
The lizard population would decrease; the strangler fig population would decrease.
The strangler fig population would be unaffected; the lizard population would decrease.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Students were studying the role of decomposers in composting. A compost bin was set up and filled with sources of carbon and nitrogen, moist soil, and a starter solution containing microorganisms. The graph below shows the change in temperature of the bin after two weeks. What is the most probable cause for the increase in temperature?
During decomposition, the bacteria gave off moisture which increased the temperature.
The soil was heated to provide optimal growth conditions for the bacteria.
During decomposition, the bacteria gave off energy in the form of heat.
The soil chemistry was altered, which caused an increase in the temperature.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mushrooms are vital components of the north Texas food chain.
Which description most closely explains why these mushrooms are so important?
Mushrooms are an important food source for herbivores.
Mushrooms consume nitrogen from the soil and release it into the atmosphere.
Without them, organic matter could not be recycled into the food chain.
The descriptions are false; mushrooms are not vital components of the food chain because most of them are poisonous.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In both the Nitrogen and Carbon cycles, the elements of life cycle through the environment.  Based on your observations and knowledge of matter moving within systems, what is the most important similarity between these two cycles?
Both demonstrate how matter is continuously used and reused by all members of an ecosystem
Both demonstrate that matter begins and ends with decomposers
Both demonstrate that the elements carbon and nitrogen can be found in the soil and the atmosphere
Both demonstrate how matter is changed through the process of photosynthesis

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Complex interactions must occur before solar energy is converted into a form of energy humans need to work and perform many life processes. Choose the sequence that best shows this path of energy.
radiant energy → mechanical energy → chemical energy
heat energy → light energy → photosynthesis
radiant energy → chemical energy → mechanical energy
mechanical energy → chemical energy → radiant energy

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When organisms die, the organic matter in their cells and tissues is returned to the environment for future use.  What is the name of this process?
Photosynthesis
Decomposition
Respiration
Consumption

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phytoplankton consists mainly of single-celled algae. They live in aquatic ecosystems and conduct photosynthesis. Which is the role of phytoplankton in an ecosystem?
Consumer
Decomposer
Parasite
Producer

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