Advanced Science Primary 3 Diversity

Ravi scratched four materials with an iron nail. Based on the classification, which group does 'Diamond' belong to?

A Group A (No scratches)
B Both A and B
C None of the above
D Group B (Shows scratches)
Show Worked Solution

Worked Solution

Step 1: Hardness is the ability to resist being scratched. Step 2: Diamond is harder than iron. Step 3: Therefore, it will not show scratches and belongs in Group A.

Correct answer: Group A (No scratches)

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