BrainPOP Rainbows
"What is it called when white light spreads out into many different colors? A: diffraction B: reflection C: rejection This fun page explaining rainbows is just one of dozens that BrainPOP offers on science, technology and health. It features a Flash movie, followed by a quiz and printable activities. As for the answer to the quiz question, you’ll just have to log on, watch the movie, and take the self-grading quiz for yourself!"
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BrainPOP: Buoyancy
"Dear Tim and Moby, Why do I float? Watch the Shockwave movie to learn why a boat with an anchor in it floats, but the anchor thrown by itself into the water, sinks. After the movie, try your hand at the Buoyancy Quiz, the Experiment with Bob the ex-lab rat, and the printable Buoyancy Activity Page. Last, but not least, join Gary and Gary for instructions on building a bottle raft. <!--"
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Blues Clues: Sink or Float?
"You’re just in time... we’re experimenting. Can you help Slippery Soap choose the objects that sink or float? For the Blues Clues crowd (you know who you are), Nickelodeon has created this fun Shockwave activity. Will the hammer float? Will the baby bottle float? Items appear three at time for you to drag-and-drop into the sink. Click Play to get another round of three additional items."
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Atoms Family
"How big is an atom? Try this experiment to find out for yourself. Cut " . . . a twenty-eight centimeter strip of paper in half as many times as you can. If you can cut the strip of paper in half thirty-one times you will end up with a piece of paper the size of an atom." Wow! Based on an energy exhibit currently running at the Miami Museum of Science, each monster member of the Atoms Family introduces a topic such as Atoms and Matter, Energy Conservation, and Light Waves. Under each topic, you will find a variety of activities and learning pages for grades four through twelve."
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Art and Science of Bubbles
The Soap and Detergent Association presents a nice variety of bubble tips (Bigger Better Bubbles) and tricks (The Pop-Proof Bubble!) Navigate the bubble site by using the menu at the bottom of the page not the left-hand menu which will take you out of the Kid’s Corner. Don’t miss The Predictable Pop! which will show you how to amaze your friends by knowing exactly when a bubble is about to burst.
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Archimedes of Syracuse: The Father of Buoyancy
"People have been aware of objects floating on water (or sinking) since before recorded history. But it was not until Archimedes of Syracuse came along, that the theory of flotation and the buoyancy principle were defined. Archimedes was a mathematician born in Syracuse on the island of Sicily in 287 BC. According to this Utah State University site, Archimedes is best remembered for an incident involving the crown of King Hiero II. Learn why Archimedes shouted ""Eureka!"" and how he proved that the king’s crown maker had defrauded him."
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All About Atoms
Reviewed October 28, 1999 by Stephen F. Gagnon, a reader from Newport News, Virginia who is affiliated with the site. All About Atoms is a very basic overview of atomic structure. Students can click on particles to learn more about them and even discover some fun facts about atoms!
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Albert Einstein Online
A Surfnetkids Honorable Mention site.
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Albert Einstein Archives
"Although there is an Einstein for Kids section here at the Albert Einstein Archives of The Hebrew University, it would be a shame if you stopped there, because the rest of the site is so much better. Best clicks for students are the biographical timeline, the Multimedia Mini-Exhibit and the audio recordings. The Mini-Exhibit is a slide show of highlights from Einstein’s life and achievements. Unfortunately the pages turn automatically, and if you want to stay at a particular page, my only advice is to use the previous arrow to view it again."
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137
"Feynman liked to remind physicists that they were not nearly as close to discovering the meaning of it all as they sometimes believed. ""Indeed, Feynman has said, physicists ought to put a special sign in their offices to remind themselves of how much they don’t know. The message on the sign would be very simple. It would consist entirely of one word, or, rather, number: 137."" Visit Charles Mann’s site to learn the significance of this special number, which physicists call alpha."
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