Peergrade.io is a free website that allows teachers to provide a rubric for students to use to assess peer assignments. The website allows teachers to see student assignments and the feedback they provide to their peers, while keeping everything anonymous for the students.
In this demo, two polyethylene strips are charged on one end by rubbing with wool. One charged strip is then mounted on an evaporating dish and the other charged strip is used to make the dish spin.... read more
Categories: Teacher Demonstration
This demonstration illustrates the importance of enzymes in the human body. Enzymes catalyze many important chemical reactions in the body. This demonstration is a visual example of how the enzyme... read more