Petersen, Christine

"Introduces readers to what ores are, minerals that can be mined for profit. Learn about prospecting, exploration, aboveground and underground mining, extracting metals from ores, and the importance of protecting the environment. A geology-themed project provides the opportunity for hands-on experience"--Provided by publisher.

"Introduces readers to what gems are and how they form, including mineral gems and organic gems. Learn about crystal systems, imitation and synthetic gems, cultured pearls, how gems are used, and their historic importance. A geology-themed project provides the opportunity for hands-on experience"--Provided by publisher.

"Introduces readers to what rocks are and how they form. Real-world examples bring to life igneous, sedimentary, and metamorphic rock. Color photographs will draw in readers while the easy-to-read text breaks down complex concepts. A diagram of the rock cycle ties everything together and a geology-themed project provides the opportunity for hands-on experience"--Provided by publisher.

"Introduces readers to the different types of fossils and how they form. Learn about key fossil finds, scientists who made . . . discoveries and contributions to the study of fossils, and how we use fossils today in the form of fossil fuels. A geology-themed project provides the opportunity for hands-on experience"--Provided by publisher.

"Introduces readers to what minerals are, how they form, and how we use them. Learn how to identify minerals, including color, luster, streak, fracture, hardness, specific gravity, magnetism, and fluorescence. A geology-themed project provides the opportunity for hands-on experience"--Provided by publisher.

Examines the problems associated with LSD and other hallucinogens, long-term risks, and treatment for those addicted.

Discusses various forms of energy derived from renewable resources, such as wind power, solar power, water power, geothermal energy, and biofuels.

Provides information on the dangers of Ecstasy, a drug often used to get the feeling of joy or delight.

A look at Yosemite National Park, covering its history, landscape, animals, and more.

"Explores what happens when a family decides to move and provides strategies for adjusting to a new home, neighborhood, and school"--Publisher's description.