Why are some crystals extremely rare and valuable?

Lesson
Science
2nd Grade
Why are some crystals extremely rare and valuable? - Presentation
Why are some crystals extremely rare and valuable? - Teacher notes
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Why are some crystals extremely rare and valuable? - Presentation
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Why are some crystals extremely rare and valuable? - Presentation
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Focus Education
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Science Lesson Description

2nd Grade Science lesson from the unit Rocks and soil. This lesson uses an enquiry-approach method, and will facilitate students answering the question 'Why are some crystals extremely rare and valuable?'