Standard Science Primary 5 Systems

Jun Jie tested four materials (W, X, Y, and Z) by placing them in an electrical circuit one at a time. The table shows his results. Which material is an electrical conductor?

A Material W
B Material Z
C Material X
D Material Y
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Worked Solution

Step 1: An electrical conductor allows electric current to flow through it. Step 2: If a conductor is placed in a closed circuit, the bulb will light up. Step 3: Material Y is the only material that caused the bulb to light up.

Correct answer: Material Y

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