This task is about doing a fair test.
Use the materials listed below to make three parachutes which measure: 15 cm × 15 cm, 25 cm × 25 cm, 35 cm × 35 cm. Materials: plastic supermarket bags, string, plasticene, cellotape; object to be attached to parachute.
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Make a drawing of what your parachutes will look like in the space below.
Label important details on your parachutes.
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b)
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Each parachute is to be tested 4 times. What are two things that need to be kept the same, so that this is a fair test?
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| 1 |
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| 2. |
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| c) |
Why do we test each parachute 4 times?
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| d) | i) |
Test your parachute.
Record your results in the table below.
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| ii) |
Write a sentence about what your results show.
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