ScienceKids Quiz Lab

Middle School science quiz

Space Basics

A less difficult middle school quiz about stars, planets, moons, gravity, and space exploration.

Space Middle School 20 questions
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About this quiz

A less difficult middle school quiz about stars, planets, moons, gravity, and space exploration. This quiz is designed for middle school students who want quick practice with clear explanations after each question. The questions focus on important vocabulary, cause-and-effect ideas, and examples students are likely to recognize.

Space science helps students connect everyday sky observations with larger ideas about Earth, the Moon, the Sun, planets, stars, and gravity. These pages are written for young learners who are building vocabulary and confidence before taking a quiz. Students can review how day and night happen, why the Moon appears to change shape, and how scientists use tools such as telescopes and probes to learn about objects that are very far away.

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Question preview

  1. Question 1: What is a star?

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  2. Question 2: What is the Sun?

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  3. Question 3: What does a planet do in our solar system?

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  4. Question 4: Which planet do we live on?

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  5. Question 5: What is a moon?

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  6. Question 6: Why do we see different Moon shapes during a month?

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  7. Question 7: What causes day and night on Earth?

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  8. Question 8: About how long does Earth take to spin once?

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  9. Question 9: What causes one year on Earth?

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  10. Question 10: Why do many places have seasons?

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  11. Question 11: What is gravity?

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  12. Question 12: Why do astronauts seem to float in space stations?

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  13. Question 13: What is an asteroid?

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  14. Question 14: What is a comet often made of?

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  15. Question 15: What is a galaxy?

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  16. Question 16: What is the Milky Way?

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  17. Question 17: Why are telescopes useful?

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  18. Question 18: What does a space probe do?

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  19. Question 19: Why is space exploration useful?

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  20. Question 20: Which statement is true about space?

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