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Visitors observe a bottle with a balloon attached around the mouth. The bottle contains a solution of yeast, sugar, and water.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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Learners use a mortar and pestle to extract clove oil from cloves using denatured alcohol. They put this oil on paper, which they can take home.

$1 - $5 per group Ages 14 - adult 5 to 10 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

$5 - $10 per group Ages 8 - 18 1 to 7 days
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Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base).

1 cent - $1 per group Ages 11 - adult Under 5 minutes
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Learners create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.

1 cent - $1 per group Ages 14 - adult Under 5 minutes
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Learners investigate a pre-constructed mystery tube to determine its interior mechanism.

$1 - $5 per student Ages 11 - adult 30 to 45 minutes
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In this simulation of synapses, learners act out communication at the neural level by behaving as pre-synaptic vesicles, neurotransmitters, post-synaptic receptors, secondary messengers and re-uptake

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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Learners build a simple one-cell battery and use an ammeter to measure the flow of current.

$10 - $20 per group Ages 11 - adult Under 5 minutes
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In this hands-on activity, learners use heat to shrink samples of polystyrene plastic (#6 recycle code). Learners compare the size and shape of the plastic pieces before and after shrinking.

1 cent - $1 per group Ages 6 - adult Under 5 minutes
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In this investigation of reaction kinetics, learners alter the amount of iodate solution mixed with the same amount of starch solution.

$1 - $5 per group Ages 14 - adult 5 to 10 minutes
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.

$5 - $10 per group Ages 8 - adult 1 to 2 hours
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In this activity, learners explore the "nuts and bolts" of gene chips.

$1 - $5 per student Ages 14 - 18 45 to 60 minutes
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Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.

$10 - $20 per group Ages 6 - adult Under 5 minutes
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Learners combine hydrogen peroxide with three different forms of potato: raw chunks, ground chunks, and boiled chunks.

$1 - $5 per group Ages 11 - adult 5 to 10 minutes
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Learners test solutions of water, sugar, salt, and hydrochloric acid for electrical conductivity. They immerse leads from a lighting device (a battery pack connected to an LED) into each solution.

$1 - $5 per group Ages 14 - adult Under 5 minutes
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In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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In this long-term activity, learners make a home for a colorful community of microorganisms.

$5 - $10 per student Ages 8 - 18 1 to 4 weeks
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Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water.

1 cent - $1 per group Ages 11 - adult Under 5 minutes
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In this activity, learners explore two properties of gases: gases take up space and exert pressure. Learners assemble two flasks and a beaker, connecting them with stoppers and tubing.

$5 - $10 per group Ages 11 - adult Under 5 minutes