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Working in small teams, learners try to build a satellite that can float for at least five seconds in the marked area of a vertical wind tube.

Over $20 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners are challenged to design and build a system of gears and kinematics to create a hand-stamping machine.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.

Over $20 per group Ages 11 - 18 1 to 2 hours
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Learners place their hands on different metals and use an ammeter to monitor the flow of electricity from one metal to another.

$10 - $20 per group Ages 8 - 18 5 to 10 minutes
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The beautiful iridescent colors of a bubble in a can! With this Exploratorium Science Snack, create beautiful soap films on the open end of a can to see beautiful rainbows of color.

1 cent - $1 per student Ages 4 - 18 5 to 10 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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In this activity, learners explore how pens have been engineered and re-engineered over time. Learners work as a team to develop a working pen out of everyday items.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how parachutes are used to slow down moving objects. Learners work in teams of "engineers" to design and build their own parachutes out of everyday items.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners build mini-basketball courts and explore the laws of physics. Learners discover that everything you throw or shoot on earth travels in a parabola.

$10 - $20 per student Ages 6 - 18 30 to 45 minutes
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Learners observe working lava lamps to understand how they work (included in PDF link).

$10 - $20 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners will explore globes of frozen water to learn how to ask and then answer 'investigable' questions. The activity web page includes a short video demonstration.

$1 - $5 per group Ages 8 - adult 45 to 60 minutes
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In this activity, you take regular dominoes, and turn them into conductive switches that can turn on a LEGO RCX block or Pico Cricket (micro controller). LEGO RCX block or Pico Cricket is required.

Over $20 per group Ages 8 - adult 2 to 4 hours
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In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.

Over $20 per group Ages 8 - adult 1 to 2 hours
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In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.

1 cent - $1 per group Ages 8 - 18 5 to 10 minutes
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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.

free Ages 8 - 18 10 to 30 minutes
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In this lab activity, learners act as fellow scientists and colleagues of Isaac Newton. He has asked them to independently test his ideas on the nature of motion, in particular his 2nd Law.

$10 - $20 per group Ages 14 - 18 45 to 60 minutes
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In this activity (described on pages 39-42 of PDF), learners make a paper wheel (on pages 57-60 of PDF) that shows them the relative loudness of different sounds.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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This is a great activity about human energy production. Learners will work out with a clothespin to investigate why hockey players jump on a stationary bike after an intense game.

1 cent - $1 per student Ages 14 - adult 10 to 30 minutes
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In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials.

$5 - $10 per group Ages 14 - adult 1 to 2 hours
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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