What this lesson teaches
Germination conditions and plant biology.
Can you finish germination rate experiment in about 20 min?
You will germination conditions and plant biology.
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Germination conditions and plant biology.
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.
1. Plant 10 seeds in light. 2. Plant 10 in dark. 3. Water equally. 4. Record germination daily.