EthioKids · Grade 4
Science Discovery Lab
Predict · Experiment · Discover
🦁 Ask Science Coach
Use evidence from the model or data.
💡 A strong science answer connects cause and effect.
🔬 Discovery & Investigation
Pick an experiment
18 experiments · Page 1 of 2
Roller Ramp Lab
Compare a ball rolling from two different ramp heights.
Solar Oven Investigation
Explore how a reflector changes warming in the same sunlight.
Sound Vibration
Test how the free length of a vibrating ruler changes pitch.
Erosion Table
Compare sediment runoff from exposed soil and rooted ground cover.
Fossil Evidence
Interpret a shell fossil found high in an exposed rock layer.
Plant Structure Challenge
Investigate how roots support water uptake in seedlings.
Animal Senses
Explore how a rabbit detects danger and responds.
Circuit Test
Investigate how closing a simple battery-powered circuit affects a bulb.
Wave Patterns
Compare amplitude in two rope-wave drawings.
🏆 Unit progress & mastery checks (2 units)
Discovery & Investigation Lab
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Science Model Investigations
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