Curated OER
Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
Curated OER
Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
Curated OER
Towel Testing
Young scholars examine how to design and implement experiments. In this paper towel experiment lesson students test the strength of paper towels.
Curated OER
Soil Comparison and Analysis
High schoolers perform tests on different soil samples. In this earth science lesson plan, students classify the soil into groups according to test results. They write a lab report following a certain criteria.