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What do chalk and seashells have in common? They are both primarily calcium carbonate! Learn how sea creatures use crystalline structure to their advantage as they build their shell homes. An installment of a larger series on reactions explains the biochemistry necessary to make these protective shells.
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CCSS:
Adaptable
Additional Tags
Instructional Ideas
- Bring in an assortment of shells and chalk to compare and contrast composition
- Use the links to the resources to study the concept further
Classroom Considerations
- Assumes knowledge of the compound calcium carbonate
- This video is hosted on YouTube
Pros
- Closed captioning assists with vocabulary
- Uses diagrams to demonstrate the chemistry concepts
Cons
- None