(Encyclopedia) Angelico, FraAngelico, Frafrä änjĕlˈĭkō [key], c.1400–1455, Florentine painter, b. Vicchio, Tuscany. He was variously named Guido (his baptismal name), or Guidolino, di Pietro; and…
(Encyclopedia) Boccaccio, GiovanniBoccaccio, Giovannijōvänˈnē [key], 1313–75, Italian poet and storyteller, author of the Decameron. Born in Paris, the illegitimate son of a Tuscan merchant and a…
No diet is good for kids. You may have heard about some fad diets such as the Atkins Diet or the South Beach Diet. Adults follow these diets to lose weight. Most diets work at the beginning, but…
(Encyclopedia) Dos Passos, John Roderigo, 1896–1970, American novelist, b. Chicago, grad. Harvard, 1916. He subsequently studied in Spain and served as a World War I ambulance driver in France and…
(Encyclopedia) Mellon, Andrew William, 1855–1937, American financier, industrialist, and public official, b. Pittsburgh. He studied at the Western Univ. of Pennsylvania (now the Univ. of Pittsburgh…
Properties of Ionic CompoundsChemistryIonic CompoundsWhat's an Ionic Compound?How Ionic Compounds Are FormedProperties of Ionic CompoundsWhat's in a Name? Ionic Nomenclature Because all ionic…
Vertebrates and Invertebrates Warm-blooded animals regulate their own body temperatures; their bodies use energy to maintain a constant temperature. Cold-blooded animals depend on their…
Scientists have conflicting opinions on this subject. Some paleontologists think that all dinosaurs were “warm-blooded” in the same sense that modern birds and mammals are: that is, they had…
What makes popcorn pop? A popcorn kernel is actually a seed. At its center is a tiny plant embryo, a life form in its earliest phase. The embryo is surrounded by soft, starchy material that…
