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In this water activity, learners discover ways to move water across the water table.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

$1 - $5 per group Ages 4 - 6 30 to 45 minutes
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In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this engineering activity (page 5 of PDF), young learners investigate how materials and design contribute to the strength of a structure, particularly walls.

$1 - $5 per group Ages 4 - 8 45 to 60 minutes
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

$5 - $10 per group Ages 4 - 6 30 to 45 minutes
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In this design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

1 cent - $1 per student Ages 11 - 18 30 to 45 minutes
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In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is small enough to hide.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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In this simple activity, learners discover how a mere piece of paper can be used to hold up the weight of a heavy book.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this hands-on activity, learners determine the types of chemical reactions achieved when combining different household products.

$5 - $10 per group Ages 6 - 11 45 to 60 minutes
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In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.

$5 - $10 per group Ages 4 - 6 45 to 60 minutes
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Birds' beaks are designed to allow birds to get the most of whatever food they need. In this activity, learners get an idea of how different beak shapes suit different food sources.

$1 - $5 per group Ages 6 - 11 45 to 60 minutes
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In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this design challenge activity, learners design and build a solar hot water heater. Their goal is to create a heater that yields the highest temperature change.

$10 - $20 per student Ages 11 - 18 1 to 2 hours
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In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.

$10 - $20 per group Ages 6 - 11 45 to 60 minutes
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In this hands-on experiment, kids use chemistry to explore whether acids or bases are better at restoring a penny’s shine.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed from

Over $20 per group Ages 11 - 14 2 to 4 hours
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.

$5 - $10 per group Ages 4 - 6 30 to 45 minutes
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In this water activity, learners explore how water drops behave on different surfaces.

$5 - $10 per group Ages 4 - 6 10 to 30 minutes
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In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

$1 - $5 per group Ages 4 - 6 45 to 60 minutes