Let's solve each question based on the image and general knowledge about our solar system.
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1. There are _________ planets in our solar system.
✔ Answer: 8
👉 There are 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
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2. The ________ is a star and it is the center of solar system.
✔ Answer: Sun
👉 The Sun is a star and the central body of our solar system.
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3. The inner planets all have a _________ surface.
✔ Answer: rocky
👉 The inner planets (Mercury, Venus, Earth, Mars) are terrestrial planets with solid, rocky surfaces.
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4. __________ is the hottest planet.
✔ Answer: Venus
👉 Despite being farther from the Sun than Mercury, Venus is the hottest due to its thick atmosphere trapping heat (greenhouse effect).
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5. Venus is made up mainly of __________ can cause “acid rain”
✔ Answer: carbon dioxide
👉 Venus’s atmosphere is mostly carbon dioxide (about 96.5%), which leads to extreme greenhouse warming and sulfuric acid rain.
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6. Olympic Mons in ________ is the largest volcano in solar system.
✔ Answer: Mars
👉 Olympus Mons is located on Mars and is the tallest and largest volcano in the solar system.
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7. __________ is the closest planets to the sun.
✔ Answer: Mercury
👉 Mercury is the closest planet to the Sun.
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8. It’s the third planet. There are lives in the __________.
✔ Answer: Earth
👉 Earth is the third planet from the Sun and the only known planet where life exists.
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9. __________ is also called the morning star or evening star.
✔ Answer: Venus
👉 Venus is often seen just before sunrise (morning star) or after sunset (evening star), so it's nicknamed accordingly.
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10. __________ is the red planet that has high iron content.
✔ Answer: Mars
👉 Mars is known as the "Red Planet" because its surface contains a lot of iron oxide (rust), giving it a reddish appearance.
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✔ Final Answers:
1.
8
2.
Sun
3.
rocky
4.
Venus
5.
carbon dioxide
6.
Mars
7.
Mercury
8.
Earth
9.
Venus
10.
Mars
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Parent Tip: Review the logic above to help your child master the concept of planets worksheet for.