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Chemistry: The pH Scale

The pH ScaleChemistryAcids and BasesWhat Are Acids and Bases?Properties of Acids and BasesThe pH ScaleTitrationsBuffers As you might imagine, it's useful to be able to measure the acidity of…

Twain, Mark

(Encyclopedia) Twain, Mark, pseud. of Samuel Langhorne Clemens, 1835–1910, American author, b. Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature.…

The Caldecott Medal

For the best illustrated book; given by the American Library Association. Randolph Caldecott was a 19th-century British illustrator.1938Animals of the Bible, a Picture Book, by Helen Dean Fish,…

Science Projects for Beginners: Physical Science

Physical ScienceScience Projects for BeginnersPhysical ScienceWhy Do Some Objects Fall Faster Than Others?Do Objects Float Better in Salt Water Than in Fresh Water? Does It Matter How Much Air Is…

1989 Grammy Awards

Record of the Year“Wind Beneath My Wings,” Bette MidlerAlbum of the YearNick of Time, Bonnie Raitt (Capitol)Song of the Year“Wind Beneath My Wings,” Larry Henley and Jeff Silbar, songwritersBest…

1994 Grammy Awards

Record of the Year“All I Wanna Do,” Sheryl CrowAlbum of the YearMTV Unplugged, Tony Bennett (Columbia)Song of the Year“Streets of Philadelphia” (Theme from Philadelphia), Bruce Springsteen,…

Timeline: Cartoons

Steamboat Willie Poster, Mickey Mouse's film debut   Timeline: Cartoons Here are some key moments and events in the history and evolution of cartoons       1877 1928 1950…