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    New York Hall of Science
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    In this activity, learners discover that people often see what they expect to see and hear what they expect to hear. Your brain gets all of its information about the outside world through your five...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    Science Museum of Minnesota
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    This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds? Move the sound pieces around and change the location...

    free Ages 4 - 8 5 to 10 minutes
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    Science Museum of Minnesota
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    This activity requires a Pico Cricket (tiny computer). Learners work on designing and building a sound sensor out of household materials, like plastic wrap and cardboard. This will connect with the...

    Over $20 per group Ages 8 - 18 2 to 4 hours
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    New York Hall of Science
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    Discover how sound travels and what materials make better sound conductors. Can you hear better with your fingers in your ears? Find out with a coat hanger and some string!

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    University of Washington
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    In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air. This activity page...

    1 cent - $1 per student Ages 6 - 18 5 to 10 minutes
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    Children's Museum Of Houston
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    In this activity, learners create a straw oboe to explore sound and pitch. Learners are encouraged to experiment with different sized straws to examine how the width or length of the straw affects...

    1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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    New York Hall of Science
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    See and hear how sound waves travel through different types of materials. Extend the experiment online and learn how you can "see" with sound waves using ultrasound.

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    In this activity, learners use sound to figure out, or infer, the position of objects. Learners create a maze inside a shoebox with blocks of wood. Learners then ask their partner to figure out...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    Make a hilarious honker! Fasten a piece of string through a hole in the end of a plastic cup and discover the hilarious sounds you can make. Find out how the length, tautness and wetness of the...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    University of Washington
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    This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears. A blindfolded learner tries to identify the distance of another individual while...

    1 cent - $1 per group Ages 6 - 18 5 to 10 minutes

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