Rock Cycle - Rocks (5A)
 Lab 

PROBLEM: Where do sand particles come from?

PREDICTION:

PROCEDURE: Examine the sand samples and describe their key characteristics. Use the sand chart to help measure the size of the grains, their sorting, and roundness. Look at the display rocks. Find which MOTHER ROCK(S) or minerals make up the sands. MOTHER ROCKS include chert, serpentinite, basalt, and granite.

SAND LOCALITY

DESCRIPTION OF SAND
(size, sorting, roundness)

MOTHER ROCKS

HALF MOON BAY
CENTRAL CALIF.

    

BODEGA BAY,
NORTHERN CALIF.

    

MONTARA
CENTRAL CALIFORNIA

    

RODEO BEACH, MARIN
NORTHERN CALIF.

    

CONCLUSION: How can describing the sand reveal the rock from where it started?

 

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