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    The Exploratorium
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    With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can. Make beautiful patterns on a white wall as you...

    free Ages 8 - adult 10 to 30 minutes
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    PhET
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    In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate. Learners will also...

    free Ages 8 - adult 10 to 30 minutes
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    Bridge: Online Ocean Science Education Resource Center
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    In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States. Learners will practice map skills while exploring historical...

    free Ages 14 - adult 1 to 2 hours
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    Oregon Museum of Science and Industry
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    This computer interactive lets you explore the effect of changing the number of colors and resolution of a picture. You can see the picture in high quality (72 dots per inch), low quality (10 dpi),...

    free Ages 6 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    This is an online activity where learners can virtually mix different colors of light or paint (you can switch between them) and see how the colors combine. It demonstrates how millions of colors...

    free Ages 6 - adult 5 to 10 minutes
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    Science Museum of Minnesota
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    The Game of Life is a simple computer simulation of what is called a "cellular automaton." Developed by the British mathematician John Conway in 1970, the program uses the cells of a grid...

    free Ages 6 - adult 5 to 10 minutes
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    Lawrence Hall of Science
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    In this online quiz, learners listen to whale songs, then try to guess whether the song comes from an orca, humpback, pilot, or sperm whale. Learners also guess which of four oscilloscope patterns...

    free Ages 8 - adult 5 to 10 minutes
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    National Optical Astronomy Observatory
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    In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database. This popular program has generated 100,000...

    free Ages 4 - adult 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    This is a matching game where learners match examples of communications technologies with pictures of the people who used them. Look at images of hieroglyphs, runes and calligraphy and match them...

    free Ages 6 - adult 5 to 10 minutes
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    Science Museum of Minnesota
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    In this interactive game, learners compare their music-listening skills with that of a three-month-old baby. This game challenges learners to listen to pairs of tunes and detect whether their...

    free Ages 6 - adult 5 to 10 minutes

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