(Encyclopedia) estuaryestuaryĕsˈch&oobreve;ĕrˌē [key], partially enclosed coastal body of water, having an open connection with the ocean, where freshwater from inland is mixed with saltwater…
Carole KingArchive PhotosRecord of the Year“It's Too Late,” Carole KingAlbum of the YearTapestry, Carole King (Ode)Song of the Year“You've Got a Friend,” Carole King, songwriterBest New Artist of…
(Encyclopedia) coral reefs, limestone formations produced by living organisms, found in shallow, tropical marine waters. In most reefs, the predominant organisms are stony corals, colonial cnidarians…
(Encyclopedia) public health, field of medicine and hygiene dealing with the prevention of disease and the promotion of health by government agencies. In the United States, public health authorities…
What is this job like? Chemicals are a big part of the physical world around us. Everything is made of chemicals. Chemists and materials scientists find ways to make chemicals useful to us. They…
(Encyclopedia) Superior, Lake, largest freshwater lake in the world, 31,820 sq mi (82,414 sq km), 350 mi (563 km) long and 160 mi (257 km) at its greatest width, bordered on the W by NE Minnesota, on…
Born: 1877Birthplace: Oakland, Calif. Electrostatic precipitator—Cottrell's invention used high voltage electricity to remove from 90 to 98% of the ash, dust, and acid which industrial smokestacks…
Since 1789, Congress has proposed nearly 10,000 amendments to the Constitution. These are a few that never made it out of Congress. 1893: To rename the U.S. the “United States of the Earth” 1914…
How to Save Energy Give your car—and the Earth—a rest by Rachael Stark Though home to only 5% of the world's human population, the United States uses about 26% of the petroleum consumed…
