Introduces the nature, sources, and uses of electricity and discusses what life was like before electric appliances and how saving electricity causes less pollution.
We use all kinds of machines and instruments to see, hear, record, measure, and detect changes in the world around us. Explore the variety of tools scientists have created to help in these investigations.
"What makes your ears pop in an elevator? What makes hot air balloons float up in the sky? Find out about all the things amazing air can do in this fun book." -- p. 4 of cover.
Describes the process of how thunderstorms can form. Also includes explanations of downdrafts, storm cells, supercells, electric energy, thunder, lightning, squall lines, hail, and wind bursts.