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work with your partner. . weigh your eggshell and make a note of its weight.
work with your partner. . you are provided with a battery with an led. check whether the led lights up red when you briefly hold the two ends of the battery wires together. . use a pipette to add ml ( ⁄ teaspoon) to a watch glass. . hold the wire ends of the battery in the water. the ends of the wires...
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