Morgan, Sally

"...focuses particularly on how people have damaged the environment and how best to improve it.".

Explains what the ozone layer of the atmosphere is, what destroys it, and how this depletion affects humans and life on earth.

Describes the causes of acid rain, its harmful effects, and efforts being made to solve this environmental problem.

A photo-illustrated overview of penguins that covers their different types, colonies, walking and swimming, food, predators, warmth, and life cycle.

"Discusses the properties of igneous, sedimentary, and metamorphic rocks and how they are formed, as well as how plates shift on the earth's surface to create mountains and volcanoes. Includes diagrams to present the many geologic cycles rocks go through"--Provided by publisher.

Discusses different species of plants and their life cycles; introduces how insects, birds, and nature help in pollination and the role plants play in food chains; and includes diagrams.

Discusses the different forms of water, with diagrams to explain how it is recycled through the planet, explores how the water cycle is changing due to climate change, and suggests ways people can help save water.

Profiles different types of eagles including information on their physical characteristics, natural habitats, and facts and records on eagles.

Photographs and simple text teach young readers about the life cycle of a duck and explain how ducklings learn and grow.