- Using observations of small invertebrates in the school grounds or elsewhere, ask pupils to generate a suitable question about how the activity of an invertebrate,
eg woodlice, snails, brine shrimps, daphnia, varies with environmental changes,
eg dampness, light/dark, and to plan and carry out an investigation.
- Help pupils to produce an account of what they did, focusing on the size of sample they used, the factors they could and could not control and how confident they were in their results.
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- identify a suitable question for investigation
- identify and control relevant variables
- choose an appropriate way of obtaining an adequate sample
- explain why they are, or are not, confident in their results,
eg 18 out of 20 times the snails went to the damp, I think this is sufficient; we only used 6 woodlice and 4 of them chose the dark, I think we need to use more than 6 woodlice to be sure
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