Standard Science Primary 3 Diversity

If Material A can scratch Material B, what does this tell us about Material A?

A Material A is more flexible than B.
B Material A is heavier than B.
C Material A is stronger than B.
D Material A is harder than B.
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Worked Solution

Step 1: Hardness is the ability of a material to resist being scratched. Step 2: A harder material will always be able to scratch a softer material. Step 3: Final Answer: Harder.

Correct answer: Material A is harder than B.

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