Describes factors that influence our climate and weather.

When Jed tries to pop a couple of memory chips into his motherboard, something goes wrong. Suddenly, his mind's online! No keyboards, no CRTs, and best of all, no studying! But ...

Re-create an ancient land with lush foliage and great lumbering beasts. The kit includes four prehistoric animals with limbs that really move. All you need is glue, scissors ...

Presents an overview of the animal kingdom by briefly touching on such topics as families, cities, hibernation, wings, living in snow and ice, plankton, and extinct animals.

Tyler's former girlfriend is back, and he's torn between her and Hannah. As he tries to decide which girl he should pursue, he begins to ask himself what attracts him to ...

Describes the geography and ecology of grassland regions, and the history of human activity in some major grasslands around the world.

Introduces the various types of dinosaurs, comparing their different feeding habits and care for their young. Includes tips on building lifelike models.

Panoramic pictures portray science environments level by level.

Examines the world's oceans, their physical features, movements, plant and animal life, and relationship with humanity.

Surveys the physical features, plant and animal life, human population, commerce, natural resources, and environmental concerns of the world's largest ocean.