Layers of the Earth Worksheet
Explore the composition and characteristics of Earth's internal layers with this comprehensive worksheet for Grade 9 science students.
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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 Earth's layers when necessary.
Diagram: Earth's Internal Structure
1. Which layer of the Earth is primarily composed of molten iron and nickel?
Crust
Mantle
Outer Core
Inner Core
2. Which layer of the Earth is the thinnest and most accessible?
Crust
Mantle
Outer Core
Inner Core
3. The Earth's outermost layer, composed of solid rock, is called the .
4. The is responsible for generating Earth's magnetic field.
5. Convection currents within the drive plate tectonics.
6. The inner core is a liquid layer due to extremely high temperatures.
True
False
7. The oceanic crust is generally thicker than the continental crust.
True
False
8. Describe the main differences between the lithosphere and the asthenosphere.
9. Explain how seismic waves are used to study the Earth's interior.
Match each Earth layer characteristic on the left with the correct layer on the right.
10. Plastic-like, flowing solid
a. Inner Core
11. Solid iron and nickel
b. Crust
12. Molten iron and nickel
c. Mantle
13. Outermost rocky layer
d. Outer Core