Seed dispersal: practical
I can explain why it is important for a plant that its seeds are dispersed over a wide area, and carry out an experiment to measure seed dispersal.
Seed dispersal: practical
I can explain why it is important for a plant that its seeds are dispersed over a wide area, and carry out an experiment to measure seed dispersal.
Slide deck
Lesson details
Key learning points
- Seeds are dispersed by different mechanisms to increase the chance of survival.
- Seeds are adapted to match the mechanism for dispersal; e.g. wind dispersed are light with a large surface area.
- Variables are factors that affect the process being investigated, the dependant variable is distance the seed travels.
- Practical investigation of how far model seeds disperse with changes to their template.
- Repeat measurements for each value to identify anomalous results and calculate a mean.
Common misconception
That means are always divide by three.
Show examples where the number of repeats varies.
Keywords
Seed dispersal - Mechanism by which seeds are transported away from the parent plant.
Adaptations - Features of living organisms that help them survive in their environment.
Variable - Factor in a scientific investigation which may have an effect on the process being studied.
Repeats - Measurements of the same value allows anomalous results to be identified.
Mean - A measure of average where all values are added together and divided by the number of repeat measurements that have been taken.
Content guidance
- Equipment requiring safe usage.
Supervision
Adult supervision recommended.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Worksheet
Starter quiz
6 Questions
variables that are chosen to be changed
variables that are measured
variables that are kept the same
Exit quiz
6 Questions
width of wings
distance the seed travels
length of wings