"Erosion & Sand"
Bellwork:
•1) Sketch the landform below (mexican hat; text pg, 21) and label each section as soft or hard rock.
•2) How is sand made?
•3) Which came first – sand or sandstone?
- Discuss sand and what we know about it
Sand Activity
- Turn to pg. 45 in workbook to look over sand observation chart
- Tape sand observation guidelines on pg. 44 (for size, shape, and sorting)
- Possible sand locatons: mountain stream, beach, and sand dune ==> view sand dune video clip
- Observe 3 sand samples in a group and record observations on pg. 45
- Discuss observations and infer where these sand samples came from
- Create sand sample card to use when analyzing sand and erosion tomorrow
- Complete exit slip on pg. 44: "The BIG IDEA I gained from this investigation was..."
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