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Preparation
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In this investigation, students will explore how to use the physical characteristics of rocks to group and identify the rocks.
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For each student group:
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This investigation is considered generally safe to do with students. Please also review the investigation for your specific setting, materials, students, and conventional safety precautions.
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Remind students of the rocks that they studied in their first investigation. What was the same about the rocks? What was different? What characteristics did they think would be useful in identifying their rocks? Make a list of their ideas to refer to during the investigation.
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After the scene is set, introduce your students to the investigation question: “How can you tell rocks apart?” Tell your students that they will be investigating this question and at the end of their investigations they will be able to provide reliable answers.
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Here are some initial questions that your students can discuss, in pairs, groups and as a whole class:
Have your students report out their ideas and make a list of them. Add to your class list called “Questions we have about rocks.” By the end of the investigation, more of these questions will probably be answered. |
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