Edexcel IGCSE Biology · Spec 3.5
Germination - Required Practical
Required practical: investigating the conditions that seeds need in order to germinate.
Biology revision video
Germination - Required Practical
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Spec 3.5
What you need to know
- Describe how to test the conditions seeds need
- Explain how cooled boiled water is used to remove oxygen
- Identify the controls and ways to improve reliability
Active recall
Quick check
Answer each question before opening the answer.
What three conditions do seeds need to germinate?
Water, oxygen and a suitable (warm) temperature.
How could you test whether seeds need oxygen to germinate?
Set up identical seeds but remove oxygen from one set, keeping water and temperature the same, and compare germination.
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