Curated OER
The Young Gymnast
Second graders compare and contrast gymnastics in 1859, 1900 and today. Students contrast differences in gymnastics for boys and girls today. Students pretend that they are interviewing a famous gymnast and write up their interview....
Curated OER
Some Properties of Egg White
In this chemistry activity, learners investigate the properties of egg whites and the changes in pH, temperature, and mechanical stress while performing a test for the presence of protein. They describe how they applied the biuret test...
Curated OER
Machine Guarding
Twelfth graders describe at least two of the main causes of machine accidents. Possible responses: Unauthorized persons doing maintenance or using the machines. Missing or loose machine guards. List three of the requirements for...
Curated OER
Air Pressure
Students investigate the basic principles of air pressure. In this experimental lesson students use materials to create several different experiments that help to explain air pressure and friction.