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.
Grade 1/2 integrated unit plan for Science and Technology, Mathematics, Art, Language (STEAM). This architecture-based project will foster an awareness of a cycle of inquiry and engage students in... read more
Xylem and phloem tissues make up the "circulatory" system of a plant. The xylem tissues transport water from the roots to all of the other living tissues, while the phloem tissues transport sugars... read more
Categories: Lab/Student Activity
There are a number of birds and other species in nature that use the principles of flight and there are specific physical features that enable these species to fly. Humans have created ways to... read more