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This lesson focuses on how materials behave differently as their surface area increases.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this fun hands-on activity learners explore a simple machine: the lever. What happens to a load when you multiply the length of a lever? Find out here!

$1 - $5 per student Ages 8 - 11 45 to 60 minutes
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In this engineering challenge, learners design and build a crane out of cardboard to see how heavy a load it can lift.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners explore how the hull shape impacts a ship's performance and stability.

$10 - $20 per group Ages 11 - 18 2 to 4 hours
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Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes.

Over $20 per group Ages 11 - 18 1 to 2 hours
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In this activity, learners explore how the power of the sun can be harnessed to heat and cool a building.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how wind energy can be generated on both a large and small scale.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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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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In this activity, learners explore the engineering design process (EDP)—the process engineers use to solve design challenges.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how packaging engineers develop customized shipping and packaging containers to meet the needs of many different industries.

$5 - $10 per group Ages 8 - 18 1 to 7 days
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In this activity, learners explore how musical instruments are engineered.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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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 will build a simple electromagnet. They will test variables that would make the electromagnet stronger.

$5 - $10 per student Ages 11 - 18 10 to 30 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Hovercraft) is a full inquiry investigation into hovercraft engineering and design optimization.

Over $20 per group Ages 8 - 14 1 to 7 days
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In this lesson, learners develop a robot arm using common materials. Learners explore design, construction, and teamwork, as well as materials selection and use.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this great hands-on activity, learners use patterns to make a teepee from newspaper that they sit inside.

$1 - $5 per group Ages 8 - 11 45 to 60 minutes
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Space telescopes can offer us better, clearer views of the universe (and of our own planet) than Earth-based telescopes can, but getting these large, delicate pieces of equipment into orbit is tricky.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this series of activities (page 5), students are introduced to the design process.

$10 - $20 per group Ages 11 - 18 2 to 4 hours
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In this activity, learners build a 1:140 "scale model" of NASA's X-33 Reusable Launch Vehicle (RLV) Technology Demonstrator, and investigate how the model dimensions compare to the real vehicle.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this engineering activity, learners build a device (an anemometer) to measure how fast the wind is blowing.

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