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. As both strips become negatively charged when rubbed with wool they will repel each other when they are in close proximity.
Categories: Lab/Student Activity
This activity shows educators how to implement an alternative form of assessment that combines the theory of a written test, and the practical skills of a lab experiment. It is carried out in the... read more
Categories: Lab/Student Activity, Lesson Plan
The students will be given images of different locations that show before human impact on the natural environment, and how nature affects a similar location (e.g. flood). They will begin using the... read more
Categories: Lab/Student Activity
Harvard University’s LabXchange (click here for more information) is a free online platform for science education that lets educators remix and share high-quality content to support differentiated,... read more