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Self-Assembling Dessert Toppings
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This is an activity (located on page 3 of the PDF under Self-Assembly Activity) about self-assembly, the ability of molecules to assemble themselves according to certain rules.

Butter Up
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In this activity, learners will discover how to make butter from scratch. One optional tips includes adding marbles to speed up the process.

Decode the Barcode
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In this online activity, learners crack the special code imprinted on envelopes to help the U.S. Postal Service deliver the mail.

Spaghetti Strength
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In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

Map That Habitat
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Historically, sea floor mapping (bathymetry) was done by soundings.

Liquid Crystal Thermometers
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In this activity, learners explore liquid crystal thermometers to observe how heat flows by conduction, convection, radiation, and evaporation.

Racing with the Sun: Creating a Solar Car
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Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.

How to Make an Audio Tape Bow
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From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

Sugar Crystal Challenge
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This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.

Bright Lights
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In this activity about electricity, learners imagine that they are out in the wilderness and it is getting dark. Their task is to use the materials supplied to build a simple flashlight.

What is a Nanometer?
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This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.

Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.

Divide and Conquer
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Learners work in groups to build model cars from paper parts. First, each learner builds cars individually and the group times themselves.

Making a Simple Astrolabe
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In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

Hot Cans and Cold Cans
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Learners apply their knowledge of heat transfer to design two cans - one that will retain heat and one that will cool down quickly.

Measure the Pressure II: The "Dry" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.

Airplane Wing Investigation
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This activity (located on page 3 of the PDF under GPS: Balloon Fiesta Activity) is a full inquiry investigation into Bernoulli’s principle and airplane wings.

Bone Basics
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This is an activity (on page 2 of the PDF under Bone Regrowth Activity) about the two main components of bone - collagen and minerals (like calcium) - and how they each contribute to its flexibility a

The Carbon Cycle: Carbon Tracker
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In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.

Apartment Buildings and More
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In this engineering activity, young learners investigate multi-level buildings.