PROBLEM: Can you recognize local uses of aggregates?
        
        HYPOTHESIS:
        
        MATERIALS: Earth Science - Aggregates 
        
        PROCEDURE: Look at samples and describe their characteristics.
        Review the different rock labs to help identify the components of the
        aggregates.  Use size, sorting, and roundness to help describe the
        constituents. Can you tell how the sample may be used (i.e. in flower
        beds, stairs)?