Science around us

Discusses the importance of light to life on Earth, explains where light comes from, and examines the properties, characteristics, and types of light.

Contains a children's science book on the basic principles of matter and discusses atoms and the ordinary states of matter solids, liquids, and gases.

Teaches children about machines, how they work, the ways they are used, and how they help people in everyday life.

Presents a study of reptiles and provides information on prehistoric predators as well as their descendants such as frogs, toads, and salamanders as well as snakes, crocodiles, turtles, and alligators.

Explains what classifies a mammal as a mammal and describes the physical characteristics and unique traits of several kinds, from carnivores to insectivores to marsupials to primates.

Explains what classifies a bird as a bird and describes birds' physical characteristics, development inside eggs, flight, and migration.

Explains what an amphibian is and describes the habitats and unique traits of several kinds, including caecilians, salamanders, newts, and frogs.

Presents a study of mollusks and crustaceans and their various types such as shrimp, lobsters, clams, oysters, and mussels.

Explains the scientific knowledge of electricity from its discovery by the ancient Greeks to how electricity is used and how it makes things work.