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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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In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners design, build and test a model suspension bridge for sturdiness and strength.

$1 - $5 per group Ages 6 - 11 30 to 45 minutes
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In this activity (on page 2 of PDF), learners make their own totem poles out of recycled materials.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this math activity, learners use gingerbread cookies to collect and organize simple data. First, learners read "The Gingerbread Boy" by Paul Galdone.

$10 - $20 per group Ages 4 - 6 30 to 45 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 explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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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 hands-on activity, learners make New Year's Eve party hats out of wrapping paper. Learners use symmetry and measurement to cut out shapes they need to assemble the hats.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

$1 - $5 per student Ages 4 - 8 5 to 10 minutes
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In this tabletop activity (on pages 32-40), learners make Möbius strips -- 3D surfaces with only one side.

1 cent - $1 per student Ages 4 - adult 10 to 30 minutes
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In this simple exploratory activity (1st activity on the page), blindfolded learners try to identify mystery items by smell.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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In this data analysis activity, learners quantify the abundance and distribution of sea scallops in and adjacent to the Mid-Atlantic closed areas.

$1 - $5 per student Ages 14 - 18 1 to 2 hours
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In this activity, learners make a solar oven. Learners witness the awesome power of the sun to make a yummy treat--a chocolate chip cookie!

$10 - $20 per group Ages 6 - 11 30 to 45 minutes
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In this activity, learners develop their understanding of combinations as they create as many different kinds of tostadas as possible.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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In this math activity, learners play a probability game and try to be the first to get to the end of the game board path .This activity guide contains a material list, black line masters for the game

1 cent - $1 per group Ages 8 - 11 10 to 30 minutes
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In this engineering activity, challenge learners to invent a water filter that cleans dirty water.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity (located on page 2 of PDF), learners explore alternative uses of a simple paper cup, dubbed a "mystery item." Learners act as detectives and explore the properties and functions of th

1 cent - $1 per student Ages 4 - 11 10 to 30 minutes