Text and over one thousand illustrations offer information on ecology, covering biomes, population, ecosystems, ocean life, humans, and other related topics.
Text and over sixteen thousand illustrations offer information on sixteen topics in earth, life, and physical science--such as birds, space exploration, evolution and genetics, and weather and climate--for students in grades five through eight. Includes glossaries.
Text and over one thousand illustrations offer information on space exploration, covering its history, flight, permanent exploration, visiting other planets, applied astronautics, and more. Includes glossary.
Text and over one thousand illustrations offer information on plants, algae, and fungi, covering characteristics of various species, fermentation, their uses, and more. Includes glossary.
Text and over one thousand illustrations offer information on invertebrates, covering origin and habitats, the simplest life-forms, crustaceans and arachnids, insects, and relationships with humans. Includes glossary.
Text and over one thousand illustrations offer information on volcanoes and earthquakes, covering continuous movement, the study and prevention of earthquakes and eruptions, and more. Includes glossary.
Looks at some of the technological inventions that have changed the way people live and understand the world around them, including the Internet, cellular telephones, plasma, bionic implants, magnetic resonance imaging, virtual reality, and others.
Text and illustrations offer information on fish and amphibians, covering physical characteristics, behaviors, diversity, and relationships with humans. Includes glossary.
Text and over one thousand illustrations offer information on weather and climate, covering climatology, surface factors, meteorological phenomena, meteorology, and climate change. Includes glossary.
Text and illustrations offer information on rocks and minerals, covering the Earth's crust, formation and transformation, classes, uses, and more. Includes glossary.
