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Chemistry, 21.06.2019 22:30, bartfrank447
Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.
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Chemistry, 22.06.2019 17:30, rollercoasterbuddies
Why is the melting of ice a physical change ?
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If the mass of a certain block is 500g, what is the weight of the block?...
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