Standard Science Primary 3 Diversity

Ravi wants to test the hardness of four materials. He should check which material __________.

A sinks the fastest in water
B can scratch the others
C can be bent the most
D breaks most easily
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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 scratch a softer one. Step 3: Scratching is the standard test for hardness.

Correct answer: can scratch the others

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