Explore Science: Wave Motion
"These eight interactive wave motion demonstrations for middle-school and high-school students are awesome. The first activity, Sound Beats, allows you to experiment with sounds that are very similar in frequency. Based on what you learn, can you determine the frequency of the mystery sounds? In Doppler Effect 1, you can watch sound waves originating from a moving source. You’ll learn why a train whistle changes in pitch as it passes you and how sonic booms are created."
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Exploratorium Paper Airplanes
A Surfnetkids Honorable Mention site.
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Exploratorium: Science Snacks About Light
"Science Snacks are "miniature versions of some of the most popular exhibits at the Exploratorium" science museum of San Francisco. These fifty easy-to-do-at-home experiments involving light are arranged in alphabetic order from Afterimage to Water Sphere Lens. That should keep you busy for awhile, but when you are ready, you’ll find more Science Snacks, organized by subject, at http://www.exploratorium.edu/snacks/snacksbysubjec t.html ."
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Epaperplanes.com
Reviewed February 9, 2001by John M. Collins,a reader fromSausalito, CA, USAwho is affiliated with the site.This site offers a free software download and folding and flying tips for all paper airplanes. Books and a CD-ROM are also available by internationally award-winning paper airplane designer John M. Collins.
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Engineering: Your Future
"Everything here makes an engineering career look fun and exciting. Start with a look at the engineering alphabet from aerospace engineering to transportation engineering, and move on to learn how to choose the right engineering college. Don’t miss the list of "many fascinating people" who have been engineers or have a engineering background. Still undecided? Assess yourself with two quizzes designed to determine your success in engineering. "Do you like to work with computers and play video games?" "Do you like mazes and puzzles?" Those who answer "yes" are good candidates for a career in engineering."
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Energy in the Air: Sounds from the Orchestra
A Surfnetkids Honorable Mention site.
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Energy of a Roller Coaster
"This QuickTime animation, created for a high school physics class, demonstrates the gravitational potential energy (GPE) and kinetic energy (KE) of a roller coaster as it goes from the first hill to the end of the ride. As in most simple roller coaster designs, the first hill is the largest. Once the roller coaster is pulled to the top, it operates entirely on its own energy. The coaster’s total energy (TE) remains constant throughout the ride as TE = GPE + KE. Remember these basic principles as you design your own coaster at the Discovery Channel site listed above."
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Energy Story
"An outstanding article for middle and high-school students on energy sources from fossil fuels and hydro-power to solar and nuclear power. Chapter Two (What is Electricity?) and Chapter Eleven (Electricity Transmission System) explain electricity from atoms to volts. Be sure to visit the comprehensive Energy Quest site. You’ll find its link at the bottom of any Energy Story page. Built just for kids by the California Energy Commission, Energy Quest includes games, quizzes, and experiments. If life has given you lemons and you are tired of lemonade, try the lemon battery at http://www.energy.ca.gov/education/projects/projec ts-html/lemon.html ."
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Encyclopedia Britannica Roller Coasters
A Surfnetkids Honorable Mention site.
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Emergency Exit Arts
Reviewed July 27, 2000 by Paul Lowe, a reader from London, England who is affiliated with the site. If you want to see what can be done with both fireworks and sculptural bonfires then visit this site. See the amazing windmill with its sails going up in flames. This is for real and not a special effect.
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