Hunter’s Point Park- Copper Harbor
Rock Tumbling - Wave Action on Rocks
ASK: Why are some rocks more smooth and rounded after they have been in the Great Lakes, with the wave action?
IMAGINE:
Brainstorm: Which types of rocks could be tumbled in a rock tumbler ?
Claim: Students predict which rocks will be made smooth in the shortest periods of time
CREATE: Rock Tumblers-
a. Measure the mass (before and after)
b. Texture changes(create a “texture scale?)
