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Mr. Zeno has prepared mixtures of sand and pebbles. He divides his students into groups and tells them they are teams of geologists with a task of separating a mixture. Which of the following activities would best help students learn the process of doing science?A. Give each group a specific but different tool and show each group how to use it. Have a class discussion afterward about which tool worked best.B. Give every group a wire mesh and show them how to use it. Give students a grade based on how well they seperate the two materials.C. Demonstrate how to separate the mixture using various tools, then have students write a paragraph explaining how to separate a mixture of sand and gravel.D. Have many different tools available for students use, including tweezers and a wire mesh. Briefly explain how to use each tool. Encourage the groups to decide how to complete the task.

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