Layers of the Earth Worksheet
Explore the different layers of the Earth, their composition, and characteristics with this Grade 7 science worksheet.
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Layers of the Earth
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Read each question carefully and answer to the best of your ability. Refer to the diagram of the Earth's layers when necessary.
Diagram: Cross-section of the Earth showing its layers
1. The outermost layer of the Earth is called the .
2. The thickest layer of the Earth is the .
3. The Earth's magnetic field is generated in the .
4. The solid, innermost layer of the Earth is the .
5. Which layer of the Earth is composed primarily of molten iron and nickel?
Crust
Mantle
Outer Core
Inner Core
6. In which layer do convection currents cause tectonic plates to move?
Crust
Mantle
Outer Core
Inner Core
7. The Earth's crust is uniform in thickness across the entire planet.
True
False
8. The inner core is solid due to the immense pressure it experiences.
True
False
9. Describe the difference in physical state (solid, liquid, etc.) between the outer core and the inner core.
10. Explain how scientists are able to study the Earth's interior, given that direct observation is impossible.