Presents an introduction to weather, discussing the impact of the sun, air movement, bodies of water, and the Earth's rotation on weather systems, the causes of precipitation, and how the weather is f
Presents an introduction to water conservation, describing what happens during the water cycle and what steps need to be taken to save water, and offers experiments and activities that can be done to
Describes the symbiotic relationships that occurs between such animals as crocodiles and Egyptian plovers and termites and protozoa, and discusses types of symbiosis and what each kind of animal gains
