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.
Students develop a number of misconceptions about the process of meiosis. This is due to student confusion with similar words and phases in mitosis and the tendency of students to rely on memorizing... read more
Categories: Lab/Student Activity
This activity is a series of 10 circuits. The students are to build circuit one and move through each circuit challenge. Each circuit gets progessivly more difficult. This activity uses both series... read more
This demonstration allows students to experimentally determine the speed of light by heating a piece of chocolate in a microwave oven. This demonstration is best used as an enrichment activity as the... read more