3. Layers Upon Layers - Logistics
Individual, although clusters of 4-6 students need to be able to share materials
- Clear, plastic, 16 oz or 20 oz party cups, at least 1 per student plus 20-30 additional cups for students to share.
- At least 6 different, dry “sediments” of different grain sizes and colors, around one shoebox-full of each: playground sand, beach sand, groundcover rocks, diatomaceous earth, aquarium gravel, powdered clay, garden soil, school-yard soil, etc. Have students bring in sediments they find interesting. The activity transforms readily into an art project if you can find “pretty” sediments: colored aquarium gravels, colored sand, etc.
- 5 gallon bucket or other large container for collecting waste sand
- Optional: Squeeze box (see Sources)
- Optional: Cafeteria style trays
- Optional: Photographs showing rock layers such as the Grand Canyon or other cliff faces
Squeeze Box with horizontal sediment layers
Squeeze box after squeezing showing folding and faulting of the layers