Standard Science Primary 5 Systems

Luke tested several materials in a circuit. The bulb only lit up when Material X was used. Which of the following could Material X be?

A Glass rod
B Plastic spoon
C Iron nail
D Rubber band
Show Worked Solution

Worked Solution

Step 1: The bulb lighting up means Material X is an electrical conductor. Step 2: Most metals are conductors. Step 3: An iron nail is made of metal.

Correct answer: Iron nail

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