We are most accustomed to making observations directly with our eyes. Students therefore often find it conceptually challenging to comprehend the reasoning and logic used by scientists studying atoms that they cannot directly see. This activity allows the students to practice making logical inferences in an experiment with very similar principles to that of RutherfordÕs famous gold foil experiment.
This was a year long, ongoing, student led inquiry that my students engaged in. I covered the Daily and Seasonal strand and the Needs and Characteristics of Living Things strand, as well as several... read more
In this demo, a polyethylene strip is charged by rubbing with wool. The charged strip is then used to charge a neutral object, a pith ball, by contact. This demo can be done as a student activity. read more