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Showing results 421 to 440 of 497

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In this activity, learners test how cornstarch and glitter in water move when disturbed. Learners compare their observations with videos of Jupiter's and Earth's storm movements.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this activity on page 5 of the PDF, learners compare water with artificial urine to see how urinalysis works. Learners use urinalysis test strips to test for glucose and protein in the fake urine.

Over $20 per student Ages 8 - 14 45 to 60 minutes
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In this physics related activity which requires adult supervision, learners make their own powerful water rocket and, with it, explore Newton's Third Law of Motion.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners conduct an oxidation experiment that turns old pennies bright and shiny. Learners soak 20 dull, dirty pennies in a bowl of salt and vinegar for five minutes.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.

$1 - $5 per group Ages 4 - 18 10 to 30 minutes
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

$5 - $10 per student Ages 8 - 14 45 to 60 minutes
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In this activity, learners will develop a method to test five similar-looking powders (baking soda, baking powder, cream of tartar, detergent, and cornstarch) with four test liquids (water, vinegar, i

$1 - $5 per group Ages 6 - 14 45 to 60 minutes
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In this group activity, learners consider environmental conditions—temperature, presence of water, atmosphere, sunlight, and chemical composition—on planets and moons in our solar system to determine

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners combine two substances (plaster of Paris and water) to make a cast of an object's imprint in clay.

$1 - $5 per student Ages 6 - 14 30 to 45 minutes
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This is a quick activity (on page 2 of the PDF under Butterfly Wings Activity) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate.

free Ages 8 - adult 10 to 30 minutes
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Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.

$5 - $10 per group Ages 6 - adult Under 5 minutes
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In this activity, learners mix milk, vinegar, baking soda, and water to create sticky glue. Use this activity to explain how engineers develop and evaluate new materials and products.

$1 - $5 per student Ages 6 - 11 45 to 60 minutes
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In this experiment, learners work in pairs to create two gloves -- one that contains a layer of shortening (blubber) inside, and one that doesn't.

$5 - $10 per student Ages 8 - 14 10 to 30 minutes
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Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes