Source: National Institute of Standards and Technology Physics Laboratory Not until somewhat recently (that is, in terms of human history) did people find a need for knowing the time of day. As…
(Encyclopedia) Lattimore, Owen, 1900–1989, American author and educator, b. Washington, D.C. He was educated (1915–19) at St. Bees School, Cumberland, England, and did graduate research (1928–29) at…
—by Eleanor MayfieldSource: The U.S. Food and Drug Administration Once upon a time, we didn't know anything about fat except that it made foods tastier. We cooked our food in lard or shortening. We…
HOW DO SATELLITES STAY UP IN SPACE? SATELLITE ORBITSFIND OUT MOREA spacecraft that travels in a steady path, or orbit, around Earth is called a satellite. Satellites receive and send on…
These books were chosen by a committee of librarians, educators, and other professionals for the Association for Library Service to Children. Younger Readers…
An illustrated guide to the first ladies of the United States
Please note: Martha Jefferson, Rachel Jackson, Hannah Hoes Van Buren, and Ellen Arthur all died before their husbands became president…
WHAT IS THE DIFFERENCE BETWEEN A HOME AND A HABITAT? WHAT IS A MICROHABITAT? OCEANSWETLANDSFORESTSGRASSLANDSDESERTSMOUNTAINSPOLAR HABITATSFIND OUT MOREOrganisms are adapted to live in particular…
(Encyclopedia) Reagan, Ronald WilsonReagan, Ronald Wilsonrāˈgən [key], 1911–2004, 40th president of the United States (1981–89), b. Tampico, Ill. In 1932, after graduation from Eureka College, he…
