Earth's Inner Layers
Explore the different layers of the Earth, their composition, and characteristics with this Grade 7 Science worksheet.
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Earth's Inner Layers Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the diagram of Earth's layers when necessary.
Diagram of Earth's Layers
1. Which layer of the Earth is the thinnest?
Outer Core
Mantle
Crust
Inner Core
2. What is the primary composition of Earth's outer core?
Solid rock
Liquid iron and nickel
Magma
Gases
3. The Earth's outermost layer, where we live, is called the .
4. The is the thickest layer of the Earth, located between the crust and the core.
5. The intense heat and pressure in the keep it solid, despite its high temperature.
6. The asthenosphere is a rigid layer within the Earth's mantle.
True
False
7. Convection currents in the mantle are responsible for the movement of tectonic plates.
True
False
8. Describe two key differences between the Earth's inner core and outer core.
9. Explain how scientists study the Earth's interior, given that direct observation is impossible.
Match each term on the left with its description on the right.
10. Lithosphere
a. The solid, innermost layer of Earth
11. Asthenosphere
b. The rigid outer part of Earth, consisting of the crust and upper mantle
12. Inner Core
c. The plastic-like layer of the mantle upon which tectonic plates move