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Lifting Lemon
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In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.

Cylindrical Wing
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In this design and physics challenge, learners construct a cylindrical wing, fly it, make modifications, and determine how the changes affect flight patterns.

Tissue Paper Spray Art
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In this activity, learners observe color mixing and absorbency using colored tissue paper and spray bottles.

The Shadow Knows I
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.

Drawing Conclusions
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In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

Marshmallow Puff Tube
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In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

Scented Dough
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In this activity, learners follow a recipe to create play dough scented with fruit-flavored drink mix.

Stroboscope
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.

Sliding and Stuttering
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Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.

Breathing Blue
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

Magical Match
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In this demonstration, learners will be "wowed" as three matches burn to form a triangular pyramid shape and "magically" rise off the table.

Fingerprint Identification
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In this activity (on page 2) about fingerprint analysis, learners use graphite from a pencil and scotch tape to capture their fingerprints.

Gluep
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In this chemistry activity, learners make a slimy non-Newtonian fluid called "Gluep." Use this activity to introduce learners to polymers and viscosity.

Fun with Bernoulli
Learners conduct four simple experiments to demonstrate the effects of air pressure.

Light and Sound
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In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

Olympic Track Meet
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In this activity, learners discover how exercise helps keep the body healthy. Learners increase their heart rates by running and understand how running fast versus walking affects their pulse rates.

Moonlight Serenade
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In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.

Sunny Day Painting
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In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.

Mirror-Tracing
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This mirror-tracing activity related to proprioception is a visual and motor test that involves learning a new motor skill.