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    In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid....

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can...

    $5 - $10 per group Ages 4 - 6 45 to 60 minutes
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    In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials. Participants explore how...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    In this project, students explore how levers work, by making a puppet with moving limbs. After showing students how to make the arms, students are challenged to construct the rest of the puppet on...

    1 cent - $1 per student Ages 6 - 11 30 to 45 minutes
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    This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the...

    $5 - $10 per group Ages 4 - 6 45 to 60 minutes
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    In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink? Learners must adjust many variables in their boat design to maximize...

    1 cent - $1 per student Ages 6 - 11 45 to 60 minutes
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    In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room. The activity guide contains information for Educators...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be;...

    $5 - $10 per group Ages 4 - 6 45 to 60 minutes
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    In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly. This activity...

    $1 - $5 per student Ages 8 - 14 30 to 45 minutes
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    In this hands-on activity, learners use the steps of the design process to create a hook to rescue a "space capsule" from the water. Participants design, build, test and redesign their...

    $1 - $5 per group Ages 6 - 11 30 to 45 minutes

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