WHO RULED MAYAN KINGDOMS? WHY DID THE MAYA BUILD PYRAMIDS? MAYAN GLYPHSFIND OUT MOREThe Maya lived in Central America and were powerful from around AD 250 to 900. Farmers and traders, they built…
HOW DOES A VOLCANO ERUPT? ARE ALL VOLCANOES DANGEROUS? LAVAFIND OUT MOREA volcano is a vent or weak spot in Earth’s crust through which magma (hot, melted rock) escapes as LAVA. In some places,…
NCAA Tournament Preview 2000 A closer look at this year's Madness by Gerry Brown Marcus Fizer, the Big 12 Player of the Year, looks to guide the surprising Iowa State Cyclones…
The Respitory SystemAnatomy and PhysiologyThe Respitory SystemLungs, Bronchi, Trachea, NosePharynxMore Than Just a PipeGas Laws and BreathingVolumes and Volumes It's interesting how many…
(Encyclopedia) McCloskey, Robert (John Robert McCloskey)McCloskey, Robertməklŏˈskē [key], 1914–2003, American writer and illustrator of children's books, b. Hamilton, Ohio. He studied at the Vesper…
(Encyclopedia) isopodisopodīˈsəpŏdˌ [key], common name for crustaceans belonging to the order Isopoda and in the same subclass as lobsters and crayfish. Isopods are characterized by their flattened…
(Encyclopedia) Albert, 1819–61, prince consort of Victoria of Great Britain, whom he married in 1840. He was of Wettin lineage, the son of Ernest I, duke of Saxe-Coburg-Gotha, and first cousin to…
(Encyclopedia) Ellesmere Island, 82,119 sq mi (212,688 sq km), c.500 mi (800 km) long, in the Arctic Ocean, N Nunavut Territory, Canada; second largest and northernmost island of the Arctic…
(Encyclopedia) pitchblendepitchblendepĭchˈblĕndˌ [key], dark, lustrous, heavy mineral, a source of radium and uranium. Largely natural uranium oxides, triuranium octaoxide (U3O8) and uranium dioxide…
(Encyclopedia) phlebitisphlebitisfləbīˈtĭs [key], inflammation of a vein. Phlebitis is almost always accompanied by a blood clot, or thrombus, in the affected vein, a condition known as…
