Earth's Atmosphere Worksheet
An 8th-grade science worksheet covering the layers, composition, and importance of Earth's atmosphere.
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Earth's Atmosphere Worksheet
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Read each question carefully and answer to the best of your ability. Use the provided image to help answer questions about the layers of the atmosphere.
1. Which gas makes up the majority of Earth's atmosphere?
Oxygen
Carbon Dioxide
Nitrogen
Argon
2. In which layer of the atmosphere does most weather occur?
Stratosphere
Mesosphere
Thermosphere
Troposphere
3. The ozone layer, which protects Earth from harmful UV radiation, is found in the .
4. The outermost layer of Earth's atmosphere is called the .
5. The temperature in the stratosphere decreases with increasing altitude.
True
False
6. The exosphere is where the atmosphere merges with outer space.
True
False
Use the diagram below to answer questions 7 and 8.

7. Which layer of the atmosphere is labeled 'A' in the diagram?
8. Describe one significant characteristic or event that occurs in the layer labeled 'C'.
9. Explain why the atmosphere is essential for life on Earth.