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Scaled Solar System Model
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Scaled Solar System Model
🌟 Part 1: Solar System Knowledge
1. What is an orbital period?
The time it takes for a planet to rotate once on its axis
The time it takes for a planet to complete one orbit around the Sun
The distance between a planet and the Sun
The speed at which a planet travels through space
2. Which planet has the shortest orbital period (fastest to orbit the Sun)?
Mercury
Earth
Mars
Neptune
3. In a scaled model, why can't we show planets at their true relative sizes and distances?
4. What keeps planets moving in regular orbital paths around the Sun?
📏 Part 2: Scale Calculations
Use this scale for your calculations: 1 centimetre = 10 million kilometres
5. If Earth is 150 million kilometres from the Sun, how far should Earth be placed from the Sun in your scaled model?
Answer: _______ cm
6. Mars is 228 million kilometres from the Sun. Calculate its scaled distance:
Answer: _______ cm
7. Complete this table using the scale above:
| Planet | Actual Distance (million km) | Scaled Distance (cm) |
|---|---|---|
| Mercury | 58 | _______ |
| Venus | 108 | _______ |
| Jupiter | 778 | _______ |
🎨 Part 3: Design Your Model
8. Draw a simple diagram of your scaled Solar System model. Include the Sun and at least 4 planets with their scaled distances marked.
9. Choose one planet from your model and explain why its orbital motion is regular and predictable:
Planet chosen: ________________
10. Extension Challenge: If Mercury takes 88 Earth days to orbit the Sun and Mars takes 687 Earth days, how many times does Mercury orbit while Mars completes just one orbit?
Answer: Mercury completes approximately _______ orbits.
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