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    National Geographic Society
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    In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit. Learners investigate the conditions necessary for a circuit to work and model open and closed...

    free Ages 6 - 11 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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    National Geographic Society
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    In this activity, learners discover that training a robot can be hard work! Learners investigate how robots complete a task by following a list of sequential instructions. Learners write algorithms...

    free Ages 6 - 14 30 to 45 minutes
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    National Museum of American History
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    In this activity, learners will use Google Sky to observe features of the night sky and share their observations. Learners partake in a "Telescope Treasure Hunt" as they look for...

    free Ages 4 - 11 10 to 30 minutes
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    4-H
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    In this multi-part activity learners examine non-point water pollution. Learners discover ways they may be contributing to this type of pollution and brainstorm ways to change their behavior to be...

    free Ages 6 - adult
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    Twin Cities Public Television
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    In this online Flash game, learners will captain a sailing challenge, adjusting boat direction and sails, seeking the way to take greatest advantage of varying wind speeds and directions to catch...

    free Ages 6 - 14 5 to 10 minutes
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    Twin Cities Public Television
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    In this online Flash game, learners test their engineering know-how, moving a collection of mechanical parts onto a board to make complete a system of parts that will move a ball from start to...

    free Ages 6 - 14 5 to 10 minutes
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    COSI
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    In this activity about archaeology, learners will explore different Egyptian hieroglyphs and recognize their meanings and uses. They will also create their own hieroglyphs and use both to write...

    free Ages 4 - 11 30 to 45 minutes
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    Lawrence Hall of Science
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    In this activity, learners will be able to measure themselves in nanometers. A nanometer is a billionth of a meter, a unit of measurement used in nanotechnology. Learners can measure themselves...

    free Ages 6 - 18 5 to 10 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 can manipulate the sounds by adjusting the knobs and tuning the...

    free Ages 6 - 11 5 to 10 minutes

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