How did ancient peoples explain thunderstorms? How does the Sun send ocean water up into the clouds? How do electric charges form in a storm cloud? This series explores the causes and effects that sha
Discusses how a clouds are formed and changed into thunderstorms, the causes of lightning, what happens when lightning strikes, and how to stay safe during a storm.
Examines the process by which the power of running water is converted into electricity, and the benefits and drawbacks of using hydroelectric power in comparison with other types of energy.
"Provides an introduction to the geography, various regions, natural resources, people, and wildlife of Africa, the world's second largest continent. Includes a map activity."
"Provides an introduction to the regions, landforms, plant and animal life, the people, and interesting places of the South American continent. Includes a map activity."