What this lesson teaches
Germination conditions and plant biology.
Science in Action
Germination Rate Experiment
Test germination rates of seeds under different conditions!
Duration20 min
Age GroupAges 9–14
DifficultyIntermediate
SubjectScience
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How the activity runs
The learning connection
Comparative experiments — testing two conditions while holding all other variables constant — are the most direct teaching tool for the concept of a controlled variable. Students who design and run their own comparison experiments internalise experimental control in a way that reading about it cannot achieve.
Try it with your learner
1. Plant 10 seeds in light. 2. Plant 10 in dark. 3. Water equally. 4. Record germination daily.