Standard Science Primary 3 Diversity

Ravi wants to test the hardness of four different blocks. He should find out __________.

A which block sinks in water
B which block can scratch the others
C which block absorbs the most water
D which block bends the most
Show Worked Solution

Worked Solution

Step 1: Hardness is the ability of a material to resist being scratched. Step 2: A harder material will scratch a softer material. Step 3: To test hardness, Ravi should see which block scratches the others.

Correct answer: which block can scratch the others

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