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    This is an activity (located on page 3 of PDF) about composites, materials made of 2 or more different components. Learners will be challenged to build the best mud bricks, one of the earliest...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    In this technology activity, learners build an "alarming" doormat to keep siblings out of their rooms. Use this activity to teach learners about circuits, switches, and sensors.

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    In this activity (on page 2 of the PDF), learners will discover how the shape of an object, not just its weight, determines whether it floats or sinks. After a ball of aluminum foil sinks in a...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    In this activity, learners create a star show and discover how they can prevent light pollution. Using simple materials, learners first design constellation boxes. Next, learners use their...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits. Learners then...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    This is an activity (located on page 3 of the PDF) about diffusion of small molecules across cell membranes. Learners will use gelatin to represent a cell and dye to represent molecules to model...

    $10 - $20 per group Ages 8 - 14 1 to 7 days