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Biology, 18.02.2020 18:57 skeletonorchestra

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“In what order do materials settle in water? design and carry out an experiment to determine the order in which different sized materials (e. g., sand, gravel, topsoil) settle out in water after they have been mixed up.”

QUESTION: what are some possible treatments you can use to answer your question? what are some variables that may influence your question, and are they variables that you can easily manipulate and test?

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