5 ideas, ranked. Strongest: Design a Pollinator Hotel. Click through to explore this as a live bubble map, grow any idea further, or re-score it for your situation.
Ranked by overall score (1-10), the average of Impact, Effort (lower is better, flipped), Originality.
Compare bamboo tubes and drilled wood blocks, then log which local insects visit.
Bundle 3, 6, and 9 mm bamboo tubes to test which sizes attract different solitary bees.
Mark occupied holes and check them next spring for sealed nests and emerging insects.
Aim a time-lapse camera at the entrance to capture visitors that arrive when kids aren’t watching.
Separate marker pigments with coffee filters and water to reveal hidden color mixtures.
Run equal marker dots in both liquids and record which solvent separates colors best.
Measure how far each pigment travels, then rank brands by color separation.
Fold a wet filter into wings to reveal mirrored pigment patterns after drying.
Use button inputs and LED patterns to practice conditionals without needing a screen.
Have teams invent and document a four-mood LED language, then decode another team's signals.
Map accelerometer readings to five brightness levels, introducing sensor thresholds alongside button inputs.
Give kids scenario cards and ask them to predict each LED pattern before pressing a button.
Test how wheel size changes distance, recording three runs on a hallway track.
Shake a tray-built structure and measure how many stacked blocks it survives.
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