Describes how rocks, minerals, and soils are formed, their properties, and why humans are dependent on them.
Discover the vital role of disappearing wetlands and what can be done to protect and restore this resource.
Beautiful photos and text examines the issues endangered sea turtles face and how they can be saved.
Beautiful photos and text examines the issues endangered Steller Sea lions face and how they can be saved.
Beautiful photos and text examines the issues endangered whooping cranes face and how they can be saved.
Plants and animals that need one another in an environment form an ecosystem. All ecosystems have energy pyramids that show the exchange of energy from one food source to another. Biomes are areas of the Earth that have their own climate and characteristics. Ecosystems all over the world are in danger due to pollution, hunting, and other factors. By conserving water, recycling, and reducing pollution, we can help protect Earth's ecosystems and biomes.
Wild ones are moving into the city! Follow the dog Scooter as he wanders an urban landscape, seeing many wild animals and not seeing even more. Supplementary material contains true stories and helps children become aware of the presence of wild animals and understand why they have taken to living in cities.