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Learners write a message in Braille using beans to form the patterns of dots. Learners glue beans in place, and then challenge another learner to read the message.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this math activity, learners predict how many pom-poms they can toss inside a circle from three feet away. Use this activity to help learners explore probability.

$1 - $5 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners develop spatial reasoning skills as they blow bubbles and observe what happens when the bubbles connect.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes
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This activity uses turmeric, a common spice in curry, as an indicator for acidity and basicity. Turmeric is yellow in acid and neutral substances, but turns bright red with bases.

$1 - $5 per student Ages 11 - 14 10 to 30 minutes
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In this activity (page 3 of the PDF), learners will observe a physical change.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this physics activity, challenge learners to make a rubber band-powered spool racer. Demonstrate principles of motion as well as potential and kinetic energy.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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Most of the time, we don't have to think about breathing. In fact, you're probably breathing right now without thinking about it!

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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This is an activity about inertia, Newton's First Law of Motion. Learners will discover how an egg at rest, or any object at rest, stays that way.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In two separate bags, learners mix water with Epsom salts and detergent.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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Make impact craters with marbles (or rocks or washers) in a container of flour. Find out what you can learn about your "comets" by the craters they make.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners will explore light with reflective surfaces. Learners will make predictions and share their observations as they experiment with directing a beam of light.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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In this three-part activity, learners play a game and conduct two simple experiments to explore water and surface tension. Learners will have fun discovering how water "sticks" together.

$1 - $5 per student Ages 8 - 11 10 to 30 minutes
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This simple but open-ended math game introduces basic probability concepts using coins and dice. Players roll the dice and collect coins to match the number rolled.

$1 - $5 per group Ages 6 - 11 10 to 30 minutes
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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 physics activity (page 6 of the PDF), learners will demonstrate air has weight by comparing an inflated balloon to a deflated one.

$1 - $5 per group Ages 4 - 11 10 to 30 minutes
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Learners observe a simple balloon model of an electrostatic precipitator. These devices are used for pollutant recovery in cleaning industrial air pollution.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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Learners use the current flowing in a wire to create a magnetic field that turns a magnet. Learners can use this property of electromagnetism to build a magnet-powered pinwheel.

$1 - $5 per student Ages 11 - 18 10 to 30 minutes