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Showing results 81 to 100 of 179

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Learners add drops of four liquids (water, alcohol, salt water, and detergent solution) to different surfaces and observe the liquids' behavior.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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Learners design their own experiment to investigate whether the temperature of the surrounding water affects the rate at which the colored coating dissolves from an M&M.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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In this activity, learners investigate and compare the rate of drying in different conditions.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this activity, learners heat and cool carbonated water to find out whether temperature has an effect on how fast the dissolved gas leaves carbonated water.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads.

free Ages 6 - 18 Under 5 minutes
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Visitors mix urea with water in one flask and mix calcium chloride with water in another flask. They observe that the urea flask gets cold and the calcium chloride flask gets hot.

$1 - $5 per group Ages 6 - adult Under 5 minutes
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In this chemistry challenge, learners identify an unknown white powder by comparing it with common household powders.

Over $20 per group Ages 4 - 14 10 to 30 minutes
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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

$5 - $10 per group Ages 4 - 14 10 to 30 minutes
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In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.

free Ages 6 - 18 5 to 10 minutes
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In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water.

1 cent - $1 per group Ages 6 - 11 45 to 60 minutes
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This is a demonstration about how nature inspires nanotechnology. It is easily adapted into a hands-on activity for an individual or groups.

$5 - $10 per group Ages 6 - adult 10 to 30 minutes
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Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

$1 - $5 per group Ages 6 - adult Under 5 minutes
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

$1 - $5 per group Ages 6 - 14 2 to 4 hours
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In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes
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Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this experiment, learners try different liquids to see which ones clean pennies best. Liquids to try include water, lemon juice, cola, vinegar, and dishwashing detergent.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this multi-part activity learners examine non-point water pollution.

free Ages 6 - adult
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In this chemistry challenge, learners discover that many chemical reactions involve heat loss or gain.

$10 - $20 per group Ages 4 - 14 10 to 30 minutes
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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.

$5 - $10 per group Ages 6 - 14 30 to 45 minutes
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Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.

1 cent - $1 per student Ages 6 - 18 Under 5 minutes