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This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners discuss the different salinities of oceans, rivers and estuaries.

$5 - $10 per group Ages 8 - adult 1 to 7 days
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In this detailed activity (on pages 9-18), learners investigate the body parts of a parasitic ascaris worm by making and dissecting clay models.

1 cent - $1 per student Ages 8 - 14 1 to 2 hours
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In this activity, learners create three-dimensional shapes by making some origami models of simple boxes and containers.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners make models representing bones on Earth and bones that have been in space. They discover what happens to bones without proper exercise and nutrition.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes
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In this team design challenge (page 19-24 of PDF), learners "land" a model Lunar Rover in a model Landing Pod (both previously built in activities #3 and #4 in PDF).

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.

$10 - $20 per group Ages 8 - adult 45 to 60 minutes
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In this activity (located on pages 23-24 of the PDF), learners are introduced to structural engineering and encouraged to practice goal-oriented building.

$1 - $5 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners model the gravitational fields of planets on a flexible surface.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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Using pipe cleaners, straws, and beads, learners explore the building blocks of life by creating their own model of DNA.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore how salt water freezes in comparison to fresh water.

1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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Did you know that a Slinky makes a handy model of earthquake waves?

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device.

$10 - $20 per student Ages 8 - 18 1 to 2 hours
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In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for thei

$1 - $5 per group Ages 8 - 14 45 to 60 minutes