Hot Sources Gr. 9 Students observe demonstrations of a variety of heat sources and transformations. Students time the vibration of a mass attached to a spring and graph the relationships they observe while varying both mass and initial amplitude. 10 Students experiment with the vibrations of guitar strings and the sounds produced. This activity consists of four demonstrations on the density of water.
Students make predictions and reach conclusions about each.
Human Pendulum Gr. 7-12 Students actively participate in studying how length, amplitude, and mass affect the period of a pendulum. Ice Cream in a Bag Gr. Identifying Plastics Using Density Gr. 9 Students determine the relative density of seven types of plastic.