Time
15 minutes – Set stage for the experiment
20 minutes – Run single sediment and mixed sediment rivers side by side
15 minutes – Teams make individual conclusions and clean up
15-20 minutes the following class period – Combine all data and make summative conclusions
Grouping
Teams of 3-4 students. Half the teams will set up tubs with a single sediment (diatomaceous earth). The other half will set up tubs with a mixture of sediments (diatomaceous earth, playground sand, and aquarium gravel).
Materials
For Soil Separation Test Demonstration
For River Models
For each team of 3 students:
For the class to share:
Setting
classroom