"Almost everything we do makes some kind of waste. Find out what happens to our waste, how it is harming the environment, and what we can do [to] help some the problem"--Back cover.
Shows how various energy sources, such as oil, electricity, steam, and nuclear power, are produced, and demonstrates how each is manipulated to provide energy for machines and everyday items.
Experiments and activities present the properties of light and demonstrate how it can be bent, reflected in a mirror, and used to make shadows, rainbows, and moving pictures.
