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Wolfram|Alpha Step-by-Step Math Problem Help 
First check out this blog post for directions, then click on the link to Wolfram|Alpha to get help with a particular problem.
http://blog.wolframalpha.com/2009/1
2/01/step-by-step-math/


How Stuff Works 
Everything from auto, communication, computer, electronics to animals, geography, health and more!
http://www.howstuffworks.com/

Online Calculators on Math.com 
Basic and scientific calculators allow you to do basic as well as trigonometry, probability, and finance equations.
http://www.math.com/students/calcul
ators/calculators.html


What's That Stuff? 
What's really in hair coloring, Silly Putty, Cheese Wiz, artificial snow, or self-tanners? C&EN presents a collection of articles that gives you a look at the chemistry behind a wide variety of everyday products.
http://pubs.acs.org/cen/whatstuff/s
tuff.html


Multimedia Tour of the Solar System 
Easy to understand information about our solar system and beyond.
http://www.nineplanets.org/

ABC's of Nuclear Science 
Learn about antimatter, beta rays, and radioactivity. Find out what materials are needed to shield us from alpha, beta,and gamma radiation.
http://www.lbl.gov/abc/

Amusement Park Physics 
Explore roller coaster physics, history, and design; then try your own design.
http://www.learner.org/interactives
/parkphysics/


Animal Diversity Web 
Complete animal information, plus pictures, sounds, and classification. From the University of Michigan Museum of Zoology.
http://animaldiversity.ummz.umich.e
du/site/index.html


Chem4Kids 
Basic info for everyone, not just kids, on matter, atoms, elements, the periodic table, reactions, and biochemistry.
http://chem4kids.com/

Chemicool Periodic Table 
Learn the characteristics, states, reactions, forms, conductivity and abundance of all the chemical elements.
http://www-tech.mit.edu/Chemicool/

CliffsNotes Math 
Examples and step-by-step instructions on mathematical concepts from basic math to differential equations.
http://www.cliffsnotes.com/math

Cool Math Games 
Fun games with a focus on math skills.
http://www.coolmath-games.com/

Encyclopedia of Earth 
About the Earth, its natural environments, and their interaction with society.
http://www.eoearth.org/

Free Homework Rescue Tutors from Brainfuse 
Your library is paying these tutors to be available from 1 p.m. to 11 p.m. every day to help you.
http://www.brainfuse.com/login/csl.
asp?a_id=67C228BD


General Chemistry Online! 
Both basic and in-depth information on chemistry including frequently asked questions, a trivia game and tutorials.
http://antoine.frostburg.edu/chem/s
enese/101/index.shtml


How Products are Made 
How thousands of products are made, who invented them, and what the future may hold for them.
http://www.madehow.com/

InnerBody: Your Guide to Human Anatomy Online 
Includes graphics of major body systems, with links to descriptive information and animations. Produced by Intellimed International Corp.
http://www.innerbody.com/

Library Subject Guide: Animals 
Check out more resources selected by Hennepin County librarians
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Animals


Library Subject Guide: Biology 
Check out more resources selected by Hennepin County librarians
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Biology


Library Subject Guide: Chemistry 
Check out more resources selected by Hennepin County librarians
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Chemistry


Library Subject Guide: Earth Sciences 
Check out more resources selected by Hennepin County librarians.
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Earth%20Sciences


Library Subject Guide: Math 
Check out more resources selected by Hennepin County librarians.
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Math


Library Subject Guide: Physics 
Check out more resources selected by Hennepin County librarians.
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Physics


Library Subject Guide: Astronomy & Space 
Check out more resources selected by Hennepin County librarians
http://www.hclib.org/pub/search/Sub
Topics.cfm?Topic=Science&SubTop
ic=Astronomy%2FSpace


NASA 
Find out about U.S. space exploration here.
http://www.nasa.gov/

Physics Classroom 
An online tutorial, a multimedia physics studio that helps you visualize concepts, and physics help where you practice problems are all available.
http://www.physicsclassroom.com/

Planet Diary: Earth's Journal 
What's happening to planet Earth right now?  Check this diary to find current information, or the calendar to find historic data.  Activities and links help support science fair projects.
http://phschool.com/science/planetd
iary/index.html


Science Fair Project Resource Guide 
A collection of websites that give examples of and instructions for science fair projects. From the Internet Public Library.
http://www.ipl.org/div/projectguide
/


U.S. Geological Survey 
Focuses on biology, geography, geology, geospatial information, and water.
http://www.usgs.gov/

Visionlearning Library: Chemistry 
Available in both English and Spanish, modules teach about all aspects of chemistry and other sciences.
http://www.visionlearning.com/libra
ry/cat_view.php?cid=1&l=&c3=


Volcano World 
Information on current eruptions, and many volcano facts, usually accompanied with excellent graphics. Also contains volcano "movie clips" and experiments.
http://volcano.oregonstate.edu/

Webmath 
Fill-in forms will solve your math problem instantly and explain step by step. For math basics to trigonometry and calculus.
http://www.webmath.com/

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