Educational worksheet on the solar system featuring true/false questions and planet name puzzles.

Let’s go through each part of the worksheet step by step.

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Part 1: True or False

We’ll check each statement one by one using basic science facts.

1. Sunlight requires nearly 25 seconds to reach Earth.
→ Actually, sunlight takes about 8 minutes and 20 seconds (or roughly 500 seconds) to reach Earth from the Sun. So this is False.

2. Approximately 90% of our galaxy contain dark matter.
→ Scientists think that about 85–90% of the mass in the universe (including our galaxy) is dark matter. So this is generally accepted as True.

3. Venus is the hottest planet in the solar system.
→ Yes! Even though Mercury is closer to the Sun, Venus has a thick atmosphere that traps heat — making it hotter than Mercury. So this is True.

4. Earth is also called the blue planet.
→ Yes, because most of Earth’s surface is covered with water, which looks blue from space. So this is True.

5. Saturn requires about five years to complete one orbit around the Sun.
→ No! Saturn takes about 29.5 Earth years to go around the Sun once. So this is False.

6. Earth, Mars, Mercury, and Venus are gas planets.
→ These four are actually rocky planets, not gas giants. The gas giants are Jupiter, Saturn, Uranus, and Neptune. So this is False.

7. The Sun is a comet.
→ No! The Sun is a star. Comets are small icy bodies that orbit the Sun. So this is False.

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Part 2: Unscramble the names of the planets

We need to rearrange the letters to form real planet names.

1. cunvs → V E N U S → Venus
2. pijurte → J U P I T E R → Jupiter
3. ercumyr → M E R C U R Y → Mercury
4. asrm → M A R S → Mars
5. raeht → E A R T H → Earth
6. turnsa → S A T U R N → Saturn
7. Nusura → U R A N U S → Uranus
8. Epnunet → N E P T U N E → Neptune

(Note: All 8 planets are included here — even Pluto isn’t listed, which is correct since it’s no longer classified as a planet.)

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Final Answer:

True/False Answers:
1. False
2. True
3. True
4. True
5. False
6. False
7. False

Unscrambled Planet Names:
1. Venus
2. Jupiter
3. Mercury
4. Mars
5. Earth
6. Saturn
7. Uranus
8. Neptune