Ages 4–5
- Sink-or-float safari (prediction and observation)
- Pattern vines (AB/ABB sequences)
Ages 6–7
- Leaf bridge engineering (weight and span)
- Rain gauge build (measurement)
Ages 8–10
- Shadow tracking (rotation of Earth)
- Parrot-code puzzles (logic)
Safety and Materials
Use eye protection for chemistry, supervise heat sources, and prefer household-safe materials. Printables include safety icons.
Skills Progression
- 4–5: Observe, sort, pattern
- 6–7: Measure, predict, compare
- 8–10: Test, model, optimize