Astronomy and Space · Observational Astronomy
Track the Moon's phases for a month
Sketch the Moon every clear night for a month and explain the pattern with a ball-and-lamp model.
- Beginner
- 2–4 weeks
- Free
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Earth Science · Meteorology
Build a rain gauge and keep a weather log
Make a rain gauge and thermometer station and record the weather daily for a month.
- Beginner
- 2–4 weeks
- Under 250
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