Chapter Exam

Chapter 15: Universe and Space — Online MCQ Test

Q: What is the name of our home planet?

Answer: B. Earth — Earth is the planet on which we live. It is the third planet from the Sun.

Q: The Sun is a ______.

Answer: B. star — The Sun is a star that gives us heat and light. It is at the center of the solar system.

Q: Which planet is closest to the Sun?

Answer: A. Mercury — Mercury is the nearest planet to the Sun. It has a very short revolution period.

Q: A student observes a bright object with a glowing tail in the sky. What is it most likely to be?

Answer: B. A comet — Comets are icy bodies that develop a glowing tail when they come near the Sun. This is a common identifying feature of a comet.

Q: Which statement about the Milky Way is the most correct?

Answer: C. It is the galaxy that contains our solar system — Our solar system lies inside the Milky Way galaxy. A galaxy is much larger than a solar system.

SCIENCE · Samacheer Kalvi 7th · Tamil Nadu State Board

Practice Chapter 15: Universe and Space with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 7th SCIENCE. This chapter covers: Solar system galaxy universe astronomy Solar system galaxies stars and basic space exploration concepts. AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

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10 random questions from this chapter (mixed difficulty)
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Chapter 15: Universe and Space — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 7th SCIENCE — Chapter 15: Universe and Space, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the name of our home planet?

A. Mars
B. Earth ✓
C. Venus
D. Jupiter

Answer: B. Earth
Earth is the planet on which we live. It is the third planet from the Sun.

The Sun is a ______.

A. planet
B. star ✓
C. satellite
D. comet

Answer: B. star
The Sun is a star that gives us heat and light. It is at the center of the solar system.

Which planet is closest to the Sun?

A. Mercury ✓
B. Venus
C. Earth
D. Mars

Answer: A. Mercury
Mercury is the nearest planet to the Sun. It has a very short revolution period.

A student observes a bright object with a glowing tail in the sky. What is it most likely to be?

A. A planet
B. A comet ✓
C. A satellite
D. A star

Answer: B. A comet
Comets are icy bodies that develop a glowing tail when they come near the Sun. This is a common identifying feature of a comet.

Which statement about the Milky Way is the most correct?

A. It is the only galaxy in the universe
B. It is a small star near Earth
C. It is the galaxy that contains our solar system ✓
D. It is the same as the solar system

Answer: C. It is the galaxy that contains our solar system
Our solar system lies inside the Milky Way galaxy. A galaxy is much larger than a solar system.