Battery
Lightbulb
Metal
paper
clips
Wood
Motal noodle
Wire
Why does the bulb light when the needle touches a paper clip?
point
1. convection cells are produced
2. vibrations set up wavelike disturbances
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3. a circuit is completed
4. a phase change occurs

Battery Lightbulb Metal paper clips Wood Motal noodle Wire Why does the bulb light when the needle touches a paper clip point 1 convection cells are produced 2 class=