Standard Science Primary 3 Diversity

Ravi wants to test the hardness of four materials. He uses Material L to scratch Materials M, N, and O. Only Material N was scratched. Which statement is true?

A Material M is harder than Material L.
B Material O is softer than Material N.
C Material L is harder than Material N.
D Material N is the hardest material.
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Worked Solution

Step 1: Hardness is the ability to resist scratches. Step 2: If Material L scratches N, then L is harder than N. Step 3: Final Answer: Option A.

Correct answer: Material L is harder than Material N.

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