网站简介:Provides educational clipart in various categories.
网站简介:Pictures and information on the world's most endangered species.
网站简介:This period covers 1830 AD through 1901 AD.
网站简介:Bahrain's daily national newspaper providing local, world, sports and business coverage.
网站简介:Features a large collection of free online math games for all ages. Immediate feedback and hints are provided.
网站简介:A series of interactive tests designed to help students learn standard SAT words.
网站简介:online math games
网站简介:Information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge.
网站简介:Find activities and games, animal sounds and learn ways to help conserve the environment.
网站简介:Tells the stories of how the wars of the twentieth century have affected people, covering all aspects of life in wartime. Includes online exhibitions.
网站简介:Explores the evolution and history of money throughout the world. In English and French.
网站简介:Official site of the agency which produces Canada's money. In English and French.
网站简介:Chem4Kids.com is a website that teaches the basics of chemistry to all ages. It has sections on atoms, matter, elements, the periodic table, biochemistry, and reactions.
网站简介:See the space station, the space shuttle and many other satellites from your back yard.
网站简介:Contains quizzes on maps of continents, countries, and states.
网站简介:Interactive periodic table. Clicking on an element brings up a list of general properties and data, and information on its discovery, history, uses, geologic occurrence and abundance, compounds, and chemical isolation.
网站简介:Complete html texts of all plays.
网站简介:Features a searchable, subject-categorized directory of authoritative websites; links to online texts, newspapers, and magazines; and the Ask an ipl2 Librarian online reference service. ipl2 is the result of a merger of the Internet Public Library (IPL) and the Librarians' Internet Index (LII)
网站简介:Offers interactive word games in addition to a student dictionary and Daily Buzzword feature.
网站简介:View an interactive periodic table that has information for all 109 elements.
网站简介:Large collection of public domain country, city and thematic maps presented as gif or jpeg files, provided by the University of Texas.
网站简介:Definitions of computer and technology terms.
网站简介:Online activities, labs and tutorials. Site available in Spanish.
网站简介:Features ways to look at our sun and earth, solar system and the universe beyond.
网站简介:Contains outlines related to American history and culture, primary source materials, essays, biographies and presidential information.