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Carbon Cycle

Authored by Douglas Smith

Science

7th Grade

NGSS covered

Used 264+ times

Carbon Cycle
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About

This quiz focuses on the carbon cycle, covering the essential processes and pathways by which carbon moves through Earth's systems. Designed for 7th grade students, the questions assess understanding of key biological and chemical processes including photosynthesis, respiration, combustion, and decomposition. Students need to grasp how carbon dioxide moves between the atmosphere, living organisms, and geological formations, understanding that photosynthesis removes CO2 from the atmosphere while respiration, combustion, and decomposition add it back. The quiz requires knowledge of food chains and energy transfer, the role of fossil fuel formation and burning, and the ocean's function as a carbon reservoir. Students must distinguish between processes that add versus remove atmospheric carbon and understand the cyclical nature of carbon movement through ecosystems. Created by Douglas Smith, a Science teacher in the US who teaches grade 7, this quiz serves as an excellent tool for reinforcing fundamental concepts about biogeochemical cycles. Teachers can deploy this assessment as a formative evaluation to gauge student comprehension before moving to more complex environmental science topics, or use it as review material before unit tests. The mix of true/false and multiple-choice questions makes it suitable for quick warm-up activities or homework assignments that help students solidify their understanding of carbon cycling processes. This assessment aligns with NGSS standards MS-LS1-5 (understanding that matter cycles through ecosystems) and MS-ESS3-3 (human impact on the environment through resource use), providing teachers with valuable data on student mastery of these critical middle school life science concepts.

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17 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

Water
Atmosphere
Sun
Air

Tags

NGSS.MS-ESS2-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which one of these does not add CO2 to the atmosphere?

cooking with gas
planting trees
burning wood
riding in a bus

Tags

NGSS.MS-LS1-6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Combustion is another word for _______________.

a train
a bus
a dog
burning

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does not produce carbon dioxide?

Photosynthesis
Burning Fossil Fuels
Animal respiration
Plants decaying

Tags

NGSS.MS-LS1-6

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How do living organisms return carbon to the atmosphere in the carbon cycle?

respiration and photosynthesis
 decomposition and respiration

Tags

NGSS.HS-LS2-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

In the carbon cycle, producers take in the gas __

carbon dioxide
oxygen
nitrogen
carbon monoxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How does the carbon in grass become part of a lion?

The lion eats the grass
Carbon from grass doesn't end up in a lion. 
The carbon ends up in the lion's food chain. 
The lion breathes in carbon given out by the plant

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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