Worksheet on Our Universe - Class 3 Notes & Olympiad Questions

Questions with Explanations for Class 3 on Our Universe

1. Find the odd one out of the following based on their position in the solar system.

a) solar-system3-q1a
b) solar-system3-q1b
c) solar-system3-q1c
d) solar-system3-q1d

Answer: a) Neptune is an outer planet, much farther away from the sun. Mercury, Venus and Mars are inner planets, closer to the sun.

2. Annie learned about a planet in school today that has stunning rings composed of ice and rocks. Which planet could it be?

a) Mars
b) Saturn
c) Venus
d) Jupiter

Answer: b) Saturn is known for its magnificent rings made of ice particles and rocks.

3. While discussing the planets, 3 friends made the following statements.

Stephen: Venus is the only planet with no moons.
Mollie: Saturn has 146 moons.
Andy: Earth is the only planet that supports life.

Who made the correct statement about the planets?

a) Only Andy
b) Andy and Stephen
c) Mollie and Andy
d) Stephen and Mollie

Answer: c) Mollie and Andy are correct. Stephen is incorrect because both Mercury and Venus have no moons.

4. Unscramble the words and name the biggest planet of the solar system that is shown in the picture.

solar-system3-q4

a) TURSNA
b) NEPUNET
c) SUANUR
d) TRUPEIJ

Answer: d) Jupiter is known to be the largest planet in our solar system.

5. Match the following.

solar-system3-q5

a) 1:A, 2:C, 3:B
b) 1:C, 2:A, 3:B
c) 1:B, 2:A, 3:C
d) 1:C, 2:B, 3:A

Answer: b) Red planet: Mars
Blue planet: Earth
Morning Star: Venus

FAQs on Our Universe

1. What is the Universe?

The universe includes everything of existence, including stars, planets, galaxies, and all of space and time.

2. What is a Galaxy?

A galaxy is a vast collection of stars, planets, and other celestial bodies. The Milky Way galaxy includes our solar system.

3. What is the Milky Way?

The Milky Way is the galaxy in which we reside. It is home to billions of stars, including oaur Sun.

4. What is a Black hole?

A black hole is an area of space in which gravity is so powerful that nothing, not even light, can escape.

5. What are Stars?

Stars are massive, hot balls of gas that produce light and heat. The Sun is a star that provides assistance to humans on Earth.

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