Let's solve each question one by one using the provided word bank and basic planetary science knowledge.
Word Bank:
- Jovian
- Terrestrial
- Gas giants
- Iron
- Hydrogen
- Helium
- Mercury
- Venus
- Jupiter
- Uranus
- Ice giants
- Neptune
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1. Giant planets are called ______ planets
Answer: Jovian
✔ Explanation: The term "Jovian" refers to giant planets, especially Jupiter and the other gas and ice giants. These planets are massive and primarily composed of gases.
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2. ______ planets are common with their rocky surface
Answer: Terrestrial
✔ Explanation: Terrestrial planets (like Earth, Mars, Venus, Mercury) have solid, rocky surfaces. They are smaller and denser than gas or ice giants.
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3. Jupiter and Saturn are called the ________
Answer: Gas giants
✔ Explanation: Jupiter and Saturn are the two largest planets in our solar system and are primarily made of hydrogen and helium — hence, they're known as gas giants.
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4. Mars has red soil because it is full of ________
Answer: Iron
✔ Explanation: The reddish color of Mars comes from iron oxide (rust) on its surface, formed when iron-rich rocks react with oxygen.
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5. The closest planet to the Sun
Answer: Mercury
✔ Explanation: Mercury is the innermost planet and orbits closest to the Sun.
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6. The hottest planet
Answer: Venus
✔ Explanation: Despite being farther from the Sun than Mercury, Venus is hotter due to its thick atmosphere trapping heat (runaway greenhouse effect).
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7. The largest planet
Answer: Jupiter
✔ Explanation: Jupiter is the biggest planet in our solar system, with a diameter over 11 times that of Earth.
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8. The only planet that rotates on its side
Answer: Uranus
✔ Explanation: Uranus has an axial tilt of about 98 degrees, meaning it rotates almost on its side compared to its orbit around the Sun.
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9. Uranus and Neptune are called the ________
Answer: Ice giants
✔ Explanation: Unlike gas giants (Jupiter and Saturn), Uranus and Neptune are composed mostly of ices like water, ammonia, and methane — hence, they are called ice giants.
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10. The farthest planet from the Sun
Answer: Neptune
✔ Explanation: Neptune is the outermost planet in our solar system. Pluto was once considered the farthest, but it’s now classified as a dwarf planet.
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✔ Final Answers:
1.
Jovian
2.
Terrestrial
3.
Gas giants
4.
Iron
5.
Mercury
6.
Venus
7.
Jupiter
8.
Uranus
9.
Ice giants
10.
Neptune
These answers use only words from the given word bank and are scientifically accurate.
Parent Tip: Review the logic above to help your child master the concept of grade 5 science worksheet.
