Dickmann, Nancy

Explains what the rock cycle is and defines such concepts as sedimentation, compaction, and cementation.

Explains what landforms are and presents information on some specific landforms, including mountains, volcanoes, and caves.

Explains what a life cycle is, specifically the life cycle of plants, humans, animals, and insects.

Explains what the water cycle is and defines such concepts as evaporation, transpiration, and condensation.

Describes the life of biologist and writer Rachel Carson, whose book "Silent Spring" sparked the environmentalist movement.

"For centuries, falling water has been used in parts of the world to create energy to run grinding stones at mills and irrigation systems for crops. This interesting book shows how the use of this 'clean' form of energy, called hydroelectricity, is being expanded to help us build a more sustainable future. Discover how other forms of water-based energy, such as energy from ocean waves and tides, are being harnessed and used to help create electricity to power our homes, offices, and factories."--Provided by publisher.

In this visually spectacular tour of the outer reaches of our solar system, readers discover many intriguing facts.

Stargazers have observed Mercury, Venus, and Mars--the other small, rocky planets in our solar system besides Earth--for thousands of years. More recently, we have begun to explore our neighbors in outer space via flyby spacecraft, probes, and rovers. Readers will learn how these expeditions have expanded our knowledge of these planets' atmosphere, surface, features, and even potential for life. A must read for anyone interested in discovering more about space exploration's past, present, and future.

This visually stunning guide gives an up-close look at some of the more elusive objects in space.

We will never be able to visit the distant stars that twinkle overhead each night, but scientists are still learning more each day about the furthest reaches of the universe. This informative, colorful book will introduce students to the life and death of stars, the structure of galaxies, dark matter, and other fascinating areas of exploration beyond the solar system.