3 How can we apply fair tests in our daily lives? 1. How does an apple change after it is cut open for a while? 2. How can we slow down or prevent this change in the apple? Do a fair test to find out an effective method.
Activity Booklet 17
Hints
How can we slow down or prevent this change in apples? (Propose a hypothesis.)
Design a fair test to verify if the hypothesis is correct. (Design an experiment.)
How can we ensure that the test can verify our hypothesis fairly? (Control factors.)
Fair testing
Three elements
Test only one factor
Control other factors
Measure the affected variables find out the effect
keep constant
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