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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
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    NOAA
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    In this activity, learners discover if carbon dioxide has an effect on temperature. Learners compare the temperatures of two bottles filled with water, one with seltzer tablets and one without,...

    1 cent - $1 per group Ages 6 - 14 1 to 2 hours

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    • Oregon Museum of Science and Industry (remove)
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