Atmosphere Exploration Worksheet
A Grade 7 science worksheet exploring the layers, composition, and importance of Earth's atmosphere.
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Atmosphere Exploration Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the provided diagram where necessary.
1. Which layer of the atmosphere contains the ozone layer, which protects us from harmful UV radiation?
Troposphere
Stratosphere
Mesosphere
Thermosphere
2. What two gases make up the majority of Earth's atmosphere?
Oxygen and Carbon Dioxide
Nitrogen and Oxygen
Hydrogen and Helium
Water Vapor and Methane
3. The lowest layer of the atmosphere, where most weather occurs, is the .
4. The protects Earth from meteoroids, which burn up in this layer.

5. Based on the diagram, describe one significant characteristic of the exosphere.
6. Explain why the atmosphere is essential for life on Earth.
7. The temperature generally decreases as you go higher in the stratosphere.
True
False
8. The exosphere is the densest layer of the atmosphere.
True
False
Use the words below to complete the sentences.
9. The coldest layer of the atmosphere is the .
10. Auroras occur in the due to interactions with solar radiation.