Science · Chemical Changes
Which one of the following is the best example of an 'authentic task' to assess students' understanding related to chemical changes?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Create a cooling chamber that can maintain low temperatures for chemical changes.
- 2Observe the changes on an iron nail when placed in a copper sulphate solution.
- 3Create a filtration mechanism to reduce salinity levels in seawater.
- 4Design a chamber which prevents the rusting of iron nails.✓
Correct answer
Design a chamber which prevents the rusting of iron nails.
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