Standard Science Primary 3 Diversity

Luke used three different rods (X, Y, and Z) to scratch one another. Based on the table, which rod is the SOFTEST?

A Rod X
B Rod Y
C Rod Z
D They are all equally hard.
Show Worked Solution

Worked Solution

Step 1: A harder material can scratch a softer material. Step 2: Rod X scratched Y and Z, so X > Y and X > Z. Step 3: Rod Y scratched Z, so Y > Z. This makes Z the softest.

Correct answer: Rod Z

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free