The PBS Kids' website (at pbskids.org) offers interactive science games for kids. The games include well-known characters and themes, such as the cast of Sesame Street, Curious George, Cat in the Hat and Arthur. Kids can learn about the environment, antibodies, dinosaurs, herbivores, weather and space while being entertained with these colorful and easily navigated games. Another kids' favorite, Bill Nye, the Science Guy, has a website (at billnye.com) full of science activities where kids can take a virtual pop quiz about science, download printable one sheets, which are one-page instructions for fun science projects, and read an ongoing blog in which Bill comments on science topics and episodes of past educational TV shows.
The National Oceanic and Atmospheric Administration has a kids' science website (at oceanservice.noaa.gov) which includes games, lessons, videos and activities about marine life, weather such as tornadoes and the jet stream, coral reefs, space, satellites and ecology. Sheppard's Software has an interactive science site (at sheppardsoftware.com) for older kids that includes games and activities about animals, seasons, cells, life cycles, astronomy, biology and chemistry. There are eight chemistry games which teach kids the periodic table and about chemical elements. The periodic table games come in six levels.
The National Aeronautics and Space Administration has an online Kids' Club website (at nasa.gov) which hosts games and activities at five different skill levels about the solar system, time, math and the Mars rover. There is also a "Buzz Lightyear Returns From Space" game which allows kids to load a virtual spaceship with the proper amount of weight and commodities for flight, as well as other grade-appropriate activities. Science Fair Adventure is a site (sciencefairadventure.com) full of science experiments. Instructions for projects in the subjects of chemistry, biology, physics, earth science and computer science are available on this site. Some of the experiments include using fruit to power a light bulb, a toy car powered by a balloon and measuring the corrosive power of soda.
The Smithsonian Education website (at smithsonianeducation.org) has science and nature games and activities about the universe, prehistory and archaeology, oceanography, geology, biology, energy and animals. On this site, you can learn to make experimental solar shingles, play an anatomy matching game, study the history of flight and play a virtual archeological dig game against the clock. Jefferson County Schools' Science Online website (at classroom.jc-schools.net) includes lesson plans broken down by grades K through 8, along with worksheets and links to interactive lessons and games in topics ranging from biology to energy and the earth and universe. The games page of this site has links to hundreds of interactive science games broken down into the subjects of anatomy, biology, physics, plants, weather, space and animals.