Outer Space Exploration
A Grade 9 science worksheet on outer space, covering planetary characteristics, celestial bodies, and space exploration concepts.
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Outer Space Exploration
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which of the following celestial bodies is known for its prominent ring system?
Mars
Jupiter
Saturn
Uranus
2. What is the name of our galaxy?
Andromeda
Triangulum
Whirlpool
Milky Way
3. The is the largest planet in our solar system.
4. A star's life cycle begins with a cloud of gas and dust called a .
5. The force that keeps planets in orbit around the Sun is .
6. The Earth is the only planet in our solar system with liquid water on its surface.
True
False
7. All stars are the same size and temperature.
True
False
8. Briefly describe the main difference between a terrestrial planet and a gas giant.
9. Explain why Pluto is no longer classified as a planet.
10. Identify the planet closest to the Sun.
11. Which planet is depicted with prominent rings?