Let's solve the worksheet step by step:
Worksheet Questions and Answers:
1.
There are ________ planets in our solar system.
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Answer: 8
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Explanation: Our solar system has 8 planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
2.
The ________ is a star and it is the center of the solar system.
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Answer: Sun
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Explanation: The Sun is the central star of our solar system and provides light and heat to all the planets.
3.
The inner planets all have a ________ surface.
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Answer: rocky
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Explanation: The inner planets (Mercury, Venus, Earth, and Mars) are known as terrestrial or rocky planets because they have solid, rocky surfaces.
4.
________ is the hottest planet.
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Answer: Venus
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Explanation: Venus is the hottest planet due to its thick atmosphere, which traps heat through a runaway greenhouse effect.
5.
Venus is made up mainly of ________ can cause “acid rain.”
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Answer: carbon dioxide
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Explanation: Venus has a dense atmosphere composed mainly of carbon dioxide, which contributes to its extreme greenhouse effect and acidic conditions.
6.
Olympic Mons in ________ is the largest volcano in the solar system.
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Answer: Mars
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Explanation: Olympus Mons on Mars is the largest known volcano in the solar system, much larger than any volcano on Earth.
7.
________ is the closest planet to the sun.
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Answer: Mercury
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Explanation: Mercury is the smallest and innermost planet in the solar system, making it the closest to the Sun.
8.
It’s the third planet. There are lives in the ________.
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Answer: Earth
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Explanation: Earth is the third planet from the Sun and is the only known planet to support life.
9.
________ is also called the morning star or evening star.
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Answer: Venus
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Explanation: Venus is often referred to as the "morning star" or "evening star" because it is one of the brightest objects in the sky after the Sun and Moon.
10.
________ is the red planet that has high iron content.
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Answer: Mars
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Explanation: Mars is known as the "red planet" due to its reddish appearance, caused by iron oxide (rust) on its surface.
Final Answer:
1. 8
2. Sun
3. rocky
4. Venus
5. carbon dioxide
6. Mars
7. Mercury
8. Earth
9. Venus
10. Mars
Boxed Final Answer:
\[
\boxed{8, \text{Sun}, \text{rocky}, \text{Venus}, \text{carbon dioxide}, \text{Mars}, \text{Mercury}, \text{Earth}, \text{Venus}, \text{Mars}}
\]
Parent Tip: Review the logic above to help your child master the concept of planet worksheets.
