Printable worksheet designed to help students record key facts about the Sun and the four inner rocky planets of our solar system.

It looks like you've uploaded a worksheet titled "The Inner Rocky Planets", which is designed to help students learn about the four inner planets of our solar system: Mercury, Venus, Earth, and Mars. The worksheet includes blank spaces for information such as:

- Number of moons
- Rotation period
- Revolution period
- Average temperature (in °C)
- Diameter

There are also fun illustrations (stars, a cartoon astronaut, and planets), making it engaging for younger learners.

Since you mentioned solving the problem, I’ll provide accurate scientific data to fill in the blanks for each planet. Here’s the completed version with explanations:

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🌞 1. Sun (Note: Not a planet, but included here)

- Rotation Period: ~25 days (at equator, varies due to differential rotation)
- Average Temp (°C): ~5,500°C (surface); core is ~15 million °C
- Diameter: ~1,392,000 km

> 🔍 *The Sun is not a planet but a star. It's included here likely for comparison.*

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🌎 2. Mercury

- # of Moons: 0
- Rotation Period: ~58.6 Earth days
- Revolution Period: ~88 Earth days
- Average Temp (°C): ~167°C (daytime), -173°C (nighttime) → Avg ≈ 167°C
- Diameter: ~4,880 km

> 🔍 *Mercury has no atmosphere to retain heat, so temperatures vary wildly.*

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🌍 3. Venus

- # of Moons: 0
- Rotation Period: ~243 Earth days (retrograde – spins backward!)
- Revolution Period: ~225 Earth days
- Average Temp (°C): ~462°C (hottest planet due to thick CO₂ atmosphere)
- Diameter: ~12,104 km

> 🔍 *Venus rotates very slowly and backwards compared to most planets.*

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🌍 4. Earth

- # of Moons: 1
- Rotation Period: ~24 hours
- Revolution Period: ~365.25 days
- Average Temp (°C): ~15°C
- Diameter: ~12,742 km

> 🔍 *Earth is the only known planet with liquid water and life.*

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🌍 5. Mars

- # of Moons: 2 (Phobos and Deimos)
- Rotation Period: ~24.6 hours (very close to Earth’s day)
- Revolution Period: ~687 Earth days
- Average Temp (°C): ~-63°C
- Diameter: ~6,779 km

> 🔍 *Mars is often called the "Red Planet" due to iron oxide (rust) on its surface.*

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✔ Summary Table

| Planet | Moons | Rotation Period | Revolution Period | Avg Temp (°C) | Diameter (km) |
|----------|-------|---------------------|-------------------|---------------|----------------|
| Mercury | 0 | 58.6 days | 88 days | ~167 | 4,880 |
| Venus | 0 | 243 days | 225 days | ~462 | 12,104 |
| Earth | 1 | 24 hours | 365.25 days | ~15 | 12,742 |
| Mars | 2 | 24.6 hours | 687 days | ~-63 | 6,779 |

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💡 How to Use This Worksheet:

1. Fill in the blanks using the table above.
2. Add fun facts or drawings (like craters on Mercury or polar ice caps on Mars).
3. Compare the planets — e.g., Venus has the longest day, Mars has two small moons.

Let me know if you'd like this formatted as a printable PDF or want a version with answer keys!