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Cupcake Delivery
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In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

Look-alike Liquids
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Learners add drops of four liquids (water, alcohol, salt water, and detergent solution) to different surfaces and observe the liquids' behavior.

Find the Fat
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Fat is a very important component in our diet. It's the most efficient source of energy in our bodies, and plays an important role in the flavor of foods.

Watch It Fly
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Learners observe projectile motion by launching wooden balls off of a table top. They set up a rubber-band launcher so that each ball experiences a consistent amount of force.

Better Hair Through Chemistry
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In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity.

Universal Indicator Rainbow Trout
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In this activity, learners cut out a fish and then "paint" it using universal indicator and acids and bases.

Tops
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In this activity, learners discover that some things only stand up while they are spinning.

Changing the Density of a Liquid: Adding Salt
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Learners see that a carrot slice sinks in fresh water and floats in saltwater.

Classification Line-up
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This activity was designed for blind learners, but all types of learners can use it to organize an interactive model for learning the classification system (taxonomy) of living things.

Chromatography Can Separate!
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In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.

The Rumblin' Road: Determining distance to a Thunderstorm
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In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm.

Invisible Ink Demonstration
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In this chemistry demonstration, learners will discover that phenolphthalein is a chemical that displays different colors depending on the acidity or basicity of the environment.

Density: Make a golf ball float!
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In this activity (on page 2 of the PDF), the learner places a golf ball between salt water and colored fresh water. The golf ball is not as dense as the saltwater.

Nature Painting
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In this activity learners will create paint out of natural materials. Explore your natural world (or your fridge) and find berries, leaves, or flowers to find a great base for your paint.

Separation Anxiety
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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

Exploring Products: Nano Sand
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In this activity, learners explore how water behaves differently when it comes in contact with "nano sand" and regular sand.

Charge Challenge
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In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects.

Our Sense of Sight: Color Vision
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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

Two Washers
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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

Planaria Regeneration
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In this experiment with planaria (a type of flatworm), learners will investigate the capability of different body sections to regenerate.