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Decaying Batteries Materials

  • multimeter with leads

  • 4 different types of 1.5-volt batteries (possible types include: AAA, AA, C, D)

  • 1.5-volt bulbs (several per group)

  • 3-15 cm wires, stripped about 1-cm at either end

  • switch

  • masking tape

  • optional battery charger

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