Solar System Quiz 10 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. The seasons are caused due to how the Earth is slanted. This is called the Earth's

Correct Answer: C) Axial tilt.

2. What planet is nicknamed the 'Red Planet'?

Correct Answer: D) Mars.

3. What are the main layers of Earth called?

Correct Answer: D) The core, the mantle, and the crust.

4. The imaginary line running through the center of Earth.

Correct Answer: A) Axis.

5. The ..... is found right after Neptune's orbit.

Correct Answer: B) Kuiper Belt.

6. What factor determines the color of a star?

Correct Answer: D) Temperature.

7. Which of the following is one way stars are different from moons?

Correct Answer: D) Stars produce heat and light.

8. Which early astronomer was the first one to use a telescope to observe the night sky?

Correct Answer: C) Galileo.

9. An enormous system of gas, dust, and stars held together by gravity is called a .....

Correct Answer: A) Galaxy.

10. What materials could not survive the heat where the rocky planets were formed?

Correct Answer: C) Ice and Gas.

11. Which scientist found that planetary orbits were elliptical?

Correct Answer: D) Kepler.

12. What force pulled the solar system together out of a cloud of gas and dust?

Correct Answer: C) Gravity.

13. Scientists hypothesize that ..... put oxygen in to the atmosphere.

Correct Answer: A) Photosynthesis by algae (stromatolites).

14. Which planet is third from the sun?

Correct Answer: D) Earth.

15. The second smallest planet and the one closest to the Sun is .....

Correct Answer: B) Venus.

16. The region of the solar system that is between the orbits of Mars and Jupiter where most asteroids are located

Correct Answer: C) Asteroid belt.

17. What is the relationship between gravity and size?

Correct Answer: D) The larger an object is the more gravity it has.

18. The moon Titan orbits what planet?

Correct Answer: C) Saturn.

19. Our Solar System is also known as the?

Correct Answer: C) Milky Way.

20. I am the fifth planet from the Sun. I am the fastest spinning planet in the solar system.

Correct Answer: B) Jupiter.