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This Sedimentary Rock Classification: How Old is That Layer? interactive also includes:
A timely resource illustrates the effects of the passing years on sedimentary rock formation! Young geologists discover just how long it takes to create shale, slate, and other sedimentary rocks. The interactive also shows characteristics of chemical and biochemical sedimentary rocks, plus compares and contrasts layering versus banding in rocks.
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Instructional Ideas
- Incorporate the interactive into a rock cycle unit or assign as homework to prep them for class work
- Use the questions at the end of the resource as a quick quiz or formative check
Classroom Considerations
- Students do not need any prior knowledge of sedimentary rocks
- Create a free CK-12 account to access the content
Pros
- The rock layer images used in the interactive are very clear and easy to view, helping pupils observe their characteristics
- Two videos in the resource provide different perspectives on rock formation and appearance
Cons
- None