Factors affecting seed germination: practical
I can plan and set up an investigation into factors affecting seed germination.
Factors affecting seed germination: practical
I can plan and set up an investigation into factors affecting seed germination.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Some seeds (e.g. cress seeds) will germinate on cotton wool in the right conditions.
- Planning an investigation and writing a method for factors affecting the germination of seeds on cotton wool.
- Deciding which variable to change to become the independent variable and what values to investigate.
- Deciding which variable to measure to conclude on the effect (the dependent variable).
- Deciding which variables to keep the same to ensure a valid conclusion (control variables).
Keywords
Germination - Process where a plant grows from a seed.
Independent variable - Variable that you change or choose to investigate.
Dependent variable - Variable you measure to conclude on the effect of the independent variable.
Control variable - Variables that you keep the same.
Method - Describes how an investigation should be carried out, it has clear and detailed written instructions.
Common misconception
The independent variable is also measured, so this often gets confused with the dependent variable.
Use the definition for the dependent variable that it is being measured for the purpose of seeing what has happened at the end; the effect that the independent variable has had.
To help you plan your year 9 science lesson on: Factors affecting seed germination: practical, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 9 science lesson on: Factors affecting seed germination: practical, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 science lessons from the Reproduction in plants unit, dive into the full secondary science curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
This is the variable that you change or choose in an investigation.
This is the variable that is measured.
These are the variables that are kept the same.