lesson
Test a rain cover fairly
Read with an adult. You can say, point, draw or write your answer.
1 · Learn
We can test which sample keeps water out. Put the same small amount of water on each sample and observe what happens underneath.
To compare materials, keep other things as similar as you can: the size of each sample, the water amount and the waiting time. Record what happened, even if it was not what you expected.
2 · Worked example
In this made-up test, sample B kept the paper underneath dry. That is evidence that B was a better rain cover in this test. We would check strength too before choosing a real cover.
3 · Your turn
Which sample kept water out in the example? Why should we use the same amount of water for both samples?
Check your answer
Sample B. Using the same water amount makes the comparison clearer; otherwise the amount of water might explain a difference.
4 · Apply your learning
An adult sets up a small tray test using safe fabric and plastic samples, away from electricity. Predict, observe and record which lets water through.
Adult guidance and safety
Adult controls small water amounts and clears spills. No electrical appliances, glass vessels or overhead testing. The shown results are fictional; record actual results honestly.
Open your writing and drawing pad
Write, draw or show your working. Use a mouse, pen or finger. This pad is not a submitted answer.
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My observation notebook
Work with an adult over a tray, away from electrical devices. Predict before testing. Record the sample, water amount and waiting time. Use the same amount and time for each sample. Then write what actually happened and dry spills.
Tell your adult what you notice. They can help you write it. A prediction is what you think might happen; an observation is what you actually see, hear or feel safely.
Keep your notebook: use Download notebook before leaving. Nothing is sent to the website or saved to your account. Reopen the downloaded notebook here to add another day's record. Do not include names, addresses or other private information.
Your records on this page
No observations recorded yet. Look first, then add one.
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