Planet Earth Inquiry
A Grade 9 Science worksheet focusing on the structure, composition, and processes of Planet Earth.
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Planet Earth Inquiry
Name:
Date:
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Read each question carefully and answer to the best of your ability. For multiple choice questions, circle the correct option. For fill-in-the-blank questions, complete the sentence.
1. Label the layers of the Earth in the diagram below.
A.
B.
C.
D.
2. Which layer of the Earth is responsible for generating Earth's magnetic field?
Crust
Mantle
Outer Core
Inner Core
3. Which of the following is NOT a major component of Earth's atmosphere?
Nitrogen
Oxygen
Carbon Dioxide
Hydrogen
4. The process by which heat is transferred through the movement of fluids (like in the mantle) is called .
5. Earth's atmosphere is primarily composed of (78%) and (21%).
6. The Earth's inner core is a liquid layer.
True
False
7. Plate tectonics is a theory that explains the movement of Earth's lithosphere.
True
False
8. Briefly explain the difference between the lithosphere and the asthenosphere.