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    Science Museum of Minnesota
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    This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises. Learners can manipulate the sounds by adjusting the knobs and tuning the...

    free Ages 6 - 11 5 to 10 minutes
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    American Chemical Society
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    In this activity, learners create music from a series of bottles filed with water. Learners discover that the sound produced by each bottle depends on the amount of water in the bottle. Learners...

    free Ages 4 - 11 10 to 30 minutes
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    Science Museum of Minnesota
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    This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises. Learners drag the blocks that represent a sound to the tray to create a...

    free Ages 6 - 11 5 to 10 minutes
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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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    Colorado State University
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    This is a series of three quick science activities to do with a spoon, knife, and fork. In the first two activities, learners use the flatware to explore optics, mirrors, reflection, and distortion...

    free Ages 4 - 14 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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    WGBH
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    String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches. Educators can use this game as an...

    free Ages 8 - 14 10 to 30 minutes
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    Computer Science Unplugged
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    In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video. This is an...

    free Ages 6 - 18 30 to 45 minutes
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    BBC
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    This online interactive asks learners to explore sound. Learners experiment with musical instruments and listen for the differences in the pitch and volume of the sound. During the activity, pop up...

    free Ages 6 - 11 5 to 10 minutes
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    NOAA
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    In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night. Learners log the call signs, locations,...

    free Ages 8 - 18 1 to 2 hours