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This rock is on a roll! Introduce young geologists and environmentalists to the many uses of limestone using the fifth installment in a series of seven. Illustrate the components and properties of cement, mortar, and concrete, all while showing the chemistry behind their formation. Then, explore how acid rain is damaging limestone structures, both old and new.
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Instructional Ideas
- Demonstrate the differences in cement, mortar, and concrete by preparing small quantities of them for the class to examine
- Use the embedded pause to perform a formative check of pupils' understanding of writing equations and predicting reaction products
Classroom Considerations
- Learners should have prior knowledge of writing and balancing chemical equations
Pros
- Video shows current and historical uses of limestone as a building material around the world
- Resource references other videos in the series for additional information, as well as links new information to the concept of water hardness
Cons
- None