This three-volume set introduces students to issues surrounding both current energy sources and alternative energy options. While there is significant discussion of the non-renewable resources now used to meet the majority of the world's energy needs (oil, coal and natural gas), the primary focus of the set is on newer options to meet the ever-growing demand.
Endangered Species, ed. 2
Including the addition of 25 new species, this new 2nd edition is completely updated to reflect the changes in endangered and threatened status. Color photographs and maps provide further illustrate the many species threatened by extinction, including amphibians, birds, crustaceans, fish, insects, mammals, mollusks, reptiles, and more. Each entry gives a species description, location, reason for endangerment, and measures being taken to prevent it from extinction.
Grzimeks Student Animal Life Resource
This resource book offers broad, comprehensive coverage of the animal kingdom, ranging from the simple -- sponges and corals -- to the complex -- mammals. Animals are grouped by major classifications: sponges; corals; jellyfishes; segmented worms; crustaceans and mollusks; insects; fishes; amphibians; reptiles; birds; and mammals.
UXL Encyclopedia of Biomes
Offers students and researchers comprehensive information on 12 of the Earth's major biomes and its many component ecosystems. Includes entries on land and water biomes, and covers climate, vegetation, animal life, food web, plant and animal adaptations, endangered species, human effects on the biome, and more.
UXL Encyclopedia of Biomes, ed. 2
Offers detailed comparative essays on major biomes and their component ecosystems. Includes entries on land biomes and water biomes and covers climate, elevation, soil, water bodies, vegetation, animal life, food web, plant and animal adaptations, endangered species, human effects on the biome and the effects of the environment on humans' culture and economy.
UXL Encyclopedia of Landforms and Other Geologic Features
Focuses on the physical and geological aspects, structure, and features of 48 of the earth's landforms - what they are, how they look, how they were created, how they change over time, and major geological events associated with them. Written for middle school students to support earth science and landform-related assignments, alphabetically arranged entries follow a standard and consistent subheaded format; and range in length from 9 to 11 pages.
UXL Encyclopedia of Water Science
This encyclopedia explores water science and issues from an international perspective. Topics covered include lakes and streams, oceans, aquatic animals, weather and climate, glaciers, wetlands, ecology, hydropower, commercial fishing, acid rain, recreation, pollution, economics, water conservation, international water law, global warming and much more.
UXL Encyclopedia of Weather and Natural Disasters
Introduces students to the topic of weather and natural disasters, covering such topics as weather basics, weather phenomena, forecasting, and climate. Provides information on the scientific aspects of various types of disasters including: blizzards, earthquakes, flooding, tornadoes, volcanoes, and wildfires.