Curated OER
A TOUGH NUT TO CRACK
Based on a set of criteria, learners will evaluate the quality of pecans.1. Bring a gram scale and papershell pecans. Provide five pecans for each student. 2. Divide the class into groups of five and provide each member with five pecans....
Curated OER
Water Quality Monitoring
Pupils comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...
Curated OER
Paper, Microorganisms, and Biocides
Students study the paper making process and discuss the implications of recycling paper. Students conduct a lab to determine if microorganisms are present in different solutions used in the papermaking process today.