Solar System Model to Scale
Build a to-scale (in size, not distance) solar system from paper balls — and then try to lay out the distances to scale and discover just how empty space really is.
CBSE/ICSE Milestone
CBSE Class 5/6 Science: the solar system, relative size and distance of planets, orbit, space vocabulary.
You need
- ✓8 paper balls in different sizes (crumpled newspaper)
- ✓Paints: yellow, orange, red, blue, green, brown, tan
- ✓String (very long — at least 50 metres for the distance activity)
- ✓A reference chart with planet sizes and distances from the sun
How to do it
- 1Research the relative sizes of planets: Jupiter is 11 times Earth's diameter; Mercury is 0.38 times.
- 2Make paper balls accordingly. The Sun would be impossibly large — represent it as a torch.
- 3Paint each planet: Mercury (grey), Venus (yellow-white), Earth (blue-green), Mars (red), Jupiter (orange stripes), Saturn (add a cardboard ring), Uranus (pale blue), Neptune (deep blue).
- 4Hang the model from a string in order from the sun.
- 5The distance challenge: if Earth is 1 step from the sun, Jupiter is 5 steps, Neptune is 30 steps. Try this outside and walk the distance.
- 6Ask: 'Why can't we travel to other planets easily?'