How Much Oxygen Is in the Air?Advanced-Level Science ProjectsEarth ScienceHow Much Oxygen Is in the Air?Which Is More Acidic, Snow or Rain? When you step outside and take a big breath of fresh air…
Can You Be a Human Battery?Intermediate-Level Science ProjectsChemistryCan You Be a Human Battery?What Materials Make the Best Crystals? The information presented here will give you a general idea…
Do Objects Float Better in Salt Water Than in Fresh Water?Science Projects for BeginnersPhysical ScienceWhy Do Some Objects Fall Faster Than Others?Do Objects Float Better in Salt Water Than in Fresh…
What Substance Melts Ice Fastest?Science Projects for BeginnersChemistryWhat Household Cleaners Break Down Jell-O Best?What Substance Melts Ice Fastest? Another fun chemistry project is to test a…
Making Invisible InkScience ProjectsJust for the Fun of It!Making Invisible InkMaking Eggs That BounceDo Odor and Bacteria Go Hand-in-Hand?The Sweetest Experiment This simple experiment is great…
(Encyclopedia) Conant, Roger, 1592–1679, one of the founders of Massachusetts, b. East Budleigh, Devonshire, England. He was a salter in London before he went to Plymouth in 1623. Conant lived at…
(Encyclopedia) Golden Gate Bridge, across the Golden Gate from San Francisco to Marin Co., W Calif.; built 1933–37. Its overall length is 9,266 ft (2,824 m); its main span across the strait, 4,200 ft…
(Encyclopedia) Foote, Arthur William, 1853–1937, American organist, teacher, and composer, b. Salem, Mass.; pupil of J. K. Paine at Harvard. He was organist (1878–1910) at the First Unitarian Church…
(Encyclopedia) Johnson, Cave, 1793–1866, American political leader, b. Robertson co., Tenn. He practiced law in his native state and served (1829–37, 1839–45) in the U.S. House of Representatives.…
(Encyclopedia) tie-dyeing, dyeing method used by hand-loom weavers of ancient times. It became popular during the craft revival of the 1960s. The fabric to be colored is tied or knotted at intervals…
