Physics and Chemistry
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Colors of Light
"The color of an object depends on what happens as light hits it. Objects absorb some colors and reflect others. The colors you see are the colors reflected by the object. A green leaf absorbs all colors except green. It reflects green, so green is the color you see. This McGraw-Hill site addresses the difference between the primary colors of light (red, blue and green) and the primary pigment colors used when painting (magenta, cyan, and yellow). It concludes with a multiple-choice quiz appropriate for mid to upper elementary grades."
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Color Matters
"Color plays a vitally important role in the world in which we live. Color can sway thinking, change actions, and cause reactions. It can irritate or soothe your eyes, raise your blood pressure or suppress your appetite. This incredibly extensive site is my pick of the day for high school students and adults. It includes sections on the science, sociology and art of color with titles such as Color & Vision, Color & The Brain, Color & Design and Color & The World."
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Collected Thoughts: Richard Feynman
"To keep himself ""focused on Life’s important questions,"" twenty-five year old Erik Madsen created a collection of writings from a handful of great thinkers. The Feynman page delivers a short bio and eight articles, excerpted from three of his books. Because I find them most accessible, my favorites are the three stories from ""Surely You’re Joking, Mr. Feynman! "" Other featured thinkers include authors Mark Twain and J.R.R. Tolkien, and physicist Robert Oppenheimer."
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CHEMystery Center
""When writing names of elements, a chemist usually uses abbreviations, since they are quicker to write than the names. The abbreviations that we use are called symbols. None of the symbols contain more than two letters; the first one is always capitalized and the second, if any, is always lowercase." Thus we get O for oxygen, C for carbon and He for helium. This virtual chemistry textbook was created by a team of three high school students for the 1996 annual ThinkQuest competition."
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Chemistry.org
October 15, 2003: From a reader from Washington, DC, who is affiliated with the site. "This year’s close encounter with Mars sparked the imagination and interest of people everywhere, from wide-eyed youngsters to life-long astronomers. To underscore our fascination with space, this year’s theme for National Chemistry Week (Oct. 19-25) is Earth’s Atmosphere and Beyond!"
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Chemical Comics
"Now class, open your comic books. Today we are studying the periodic table -- and not just Superman and krypton, either. From hydrogen (H) to lawrencium (Lr), clicking on most of the elements in this periodic table will transport you to a comic strip reference. "I know you have no nerves, but my stinger injects a chemical compound of the world’s most potent elemental poisons . . . from lead to arsenic, to chlorine, krypton, selenium, and strontium." This very creative approach puts the fun back in chemistry. Don’t miss it."
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Chem Tutor
A Surfnetkids Honorable Mention site.
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Chem 4 Kids
""So you’re asking, what is chemistry? Well . . . here’s our best definition. Chemistry is the study of matter and the changes that take place with that matter." Written in a fun, conversational style, this fabulous site can be navigated in several ways. Jump right to the subject that interests you (is it Elements, Reactions, or Matter?) or navigate through the most important pages of each subject with the Guided Tour. The tour can be found on the Key Topics page, along with a glossary and profiles of famous chemists."
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Bubble Town
"When the anonymous author of Bubble Town was a little boy, he discovered a paper bubble-blowing funnel in a cereal box that made much larger bubbles than the familiar plastic blowing rings. Learn how to make your own amazing bubble tube from two sheets of paper (see High Tech Bubble Tube) and learn why this simple device creates bubbles that are both bigger and longer lasting than other bubble wands (see Bubble Engineering)."
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Bubblesphere
"He’s traveled the world, entertaining audiences with his bubbles, and now Professor Bubbles shares his secrets. I especially enjoyed his homemade bubble tools and appreciated his simple bubble solution recipes. The Questions section is a good place to start for bubble how-tos, history and science, but you’ll need to scroll down the page to see the FAQs. For indoor fun, try the three online bubble games."
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