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In this activity, learners will construct a device to blow bubbles. By adding corn syrup to the bubble solution, we can increase the surface tension of the bubbles--and their size.

$1 - $5 per student Ages 4 - 11 10 to 30 minutes
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In this activity, learners will experience the different states of matter using crayons as the medium. Explore matter changing between phases while recycling old crayons.

$1 - $5 per group Ages 4 - 8 5 to 10 minutes
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In this activity, learners will test the strength of different brands of paper towels.

$1 - $5 per student Ages 4 - adult 30 to 45 minutes
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When was the last time you took a really close look at a leaf? In this activity, learners will use leaves and simple materials to make colorful leaf rubbings.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners will write a secret message that only their friends will be able to read.

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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In this activity, learners will build rainwater collectors to practice meteorology in their own backyard. Collect and analyze data to determine how much rainfall you get in a set period of time.

$1 - $5 per group Ages 8 - adult 1 to 4 weeks
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In this activity, learners compete in a game to cover the most area by drawing randomly-generated rectangles on graph paper.

$1 - $5 per group Ages 8 - 14 5 to 10 minutes
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In this activity, learners will build an instrument from common household items. Explore sound through vibrations created by your vocal chords and captured by an instrument.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners will construct an air cannon as a model for the human ear.

$1 - $5 per student Ages 11 - adult 10 to 30 minutes
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In this activity, learners will explore vegetative propagation while preparing food scraps to grow into plants.

$1 - $5 per group Ages 8 - 18 1 to 7 days