Physical Sciences

SciCentral
<http://www.scicentral.com/>
A gateway to scientific research news sources in all areas of science. Includes many excellent links to other good sites.

About.com:Chemistry
http://chemistry.about.com/
Good general information site about all kinds of Chemistry topics.

KidsClick! Science and Math
<http://sunsite.berkeley.edu/KidsClick!/topscie.html>
KidsClick is a site maintained by librarians offering web sites for kids grades K-7 on a wide variety of science topics.

Los Alamos National Laboratory Interactive Periodic Chart
<http://periodic.lanl.gov/default.html>
An interactive periodic chart of the elements with chemical information by clicking on each element's symbol.

Chem4Kids
http://www.chem4kids.com/index.html
Basic chemistry for kids and adults. Information on matter, atoms, elements, the periodic table, reactions, biochemistry and more.

Physics4Kids
http://www.physics4kids.com/
Basic Physics for kids and adults. Motion, heat and thermodynamics, electricity & magnetism, light, and other modern physics topics.

Mathematics

NumberNut
http://www.numbernut.com/
Math site for kids and adults. Covers Basic Math topics like: Shapes & Colors, Numbers & Counting, Addition, Subtraction, Multiplication, and Division. More Advanced Math topics covered include:  Fractions, Decimals, Percentages, Estimation & Rounding, Ratios, and Money. 

Math.com
http://www.math.com/
Free interactive calculators you can use online. Subjects covered include: basic and everyday math, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, and more.

Math 2
<http://www.math2.org>
Information and help site for all levels of math, elementary to college level.
S. O. S. Mathamatics www.sosmath.com Math site with examples and help for students high school to college level.

Purple Math
<http://www.purplemath.com/>
Instruction and help with algebra. Good explanations and examples. Also has a link page to many more math help sites.

Life Sciences

Biology4Kids
http://www.biology4kids.com/
Basic biology for kids and adults. Cell structure, cell function, scientific studies, plants, vertebrates, invertebrates, and other life science topics.

United States Department of Agriculture
http://www.usda.gov/wps/portal/usdahome
Official U.S. government site devoted to agricultural news, food safety and issues related to farm plants and animals. Includes a plant database.

Earth and Environmental Sciences

United States Geological Survey
<http://www.usgs.gov>
United States Geological Survey's official site. Resources in Biology, Geology, Mapping, and Water Resources. Mainly U.S. but also worldwide. Includes factsheets on hazards and a Kids Corner in the Biology Section.

Geography4Kids
http://www.geography4kids.com/
Good source for basic geological and geographic information, explained in a simple straightforward way for kids and adults. Earth energy and structure, the atmosphere, hydrosphere, biosphere, climate and the biological and geological cycles that shape our planet.

National Oceanic & Atmospheric Administration
http://www.noaa.gov/
U.S. government site for ocean, weather and climate information and articles about ongoing projects.

National Weather Service
http://www.nws.noaa.gov/
Direct link to the National Weather Service for up-to-the -date weather information for anywhere in the United States.

United States Environmental Protection Agency
<http://www.epa.gov>
News, laws, educational resources and more related to the environment

Astronomy and Space Sciences

National Aeronautics and Space Administration
<http://www.nasa.gov>
NASA's official website for current events, future plans, and recent discoveries in Space. Includes pictures from space.

Jet Propulsion Laboratory at CalTech
http://www.jpl.nasa.gov/
Image galleries and information on major unmanned space exploration past present and future. Topics include the Earth, other planets of our solar system and beyond to distant stars and galaxies.

SpacePlace for Kids
http://spaceplace.nasa.gov/en/kids/
Special kids pages covering all kinds of space topics with information, games and fun.

Planetary Photojournal
http://photojournal.jpl.nasa.gov/index.html
Interactive tour of the solar system and the galaxies beyond. Just click on the planet see images of it from many of our missions into space. Select any of the other topics from a side bar to see images of spacecraft and telescopes, distant stars and galaxies and more. Learn about the latest missions to other worlds and see the robots and unmanned spacecraft that are making the journeys.

Last Updated: September 7, 2007