New Science eTextbook 4B (UPC)

Energy and Electricity Unit 6

12 Closed Circuits 1 How can we light up a bulb? 1. Megan turned on the switch of her electric lantern, but the lantern did not light up. Guess the reason.

2. These circuit components make the lantern light up. Write their names on the and look at their uses.

: connects the light bulb to the dry batteries

: supplies power, and has positive and negative poles

: turns electrical energy into light energy

3. How should we connect a bulb and a dry battery to light up the bulb? Assemble these circuit components.

Activity Booklet 21

light bulb with a holder

wires with crocodile clips

dry battery

battery holder

To light up a bulb, we need to connect it to and to form a closed circuit. Quick Check

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