Using a Weak Sound to Make a Loud Sound Gr. The experiments in this lab activity help students to understand the concept of resonance. Water, Water Everywhere Gr. 9 Students determine the mass, volume, and density of liquid water and ice. Student Generated Power Gr.
Students use their bodies to generate heat in a test tube of water.
In this activity students invent and calibrate an inertial balance in order to determine the mass of an object in a weightless environment. This activity develops the notion of characteristic properties of substances by comparing the density of several liquids.