Petersen, Christine

Provides comprehensive information on the dangers of Vicodin and OxyContin abuse.

Presents an overview of genetics, looking at inherited traits, the role of cells and DNA, and how people today make use of genetics.

Describes how to investigate the physical characteristics and behavior of mammals, including such projects as observation, tracking, comparison with other animals, using the Internet, and building a place of habitation such as a bat box.

Provides comprehensive information on the dangers of inhalant use.

Provides information about vaccines and vaccinations, discussing why they were developed, if they are effective, how many there are, benefits, risks, and if they should be mandatory.

Provides comprehensive information on Earth's food supply and its protection, the interrelationships of the natural world, environmental problems both natural and man-made, the relative risks associated with these problems, and solutions for resolving and/or preventing them.

Provides comprehensive information on Earth's climate changes, discussing ancient Earth's climate, the impact of climate change on Arctic regions, and recent studies on future complications.

Provides information and step-by-step procedures for projects designed to teach about the Earth's waters, covering the water cycle, desalination, solubility, groundwater, freezing point, specific heat capacity, density, acid rain, capillarity, aquatic organisms, and water power.

Introduces young readers to diamonds, discussing how they are formed, where they are found and mined, and the variety of ways they are used.

An introduction to geology that uses full-color photographs and easy-to-read text to describe the different properties of gems.