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Screaming Balloon
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In this quick activity (page 1 of the PDF under SciGirls Activity: Extreme Sounds) about sound vibrations, learners will investigate which small objects, such as coins, hex nuts, or marbles, produce t

Spaghetti Bridge
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In this engineering activity, learners investigate the differences between the strength of bridges made from flat and round building materials.

Waterproof Hanky
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In this physics demonstration, learners will be surprised when a handkerchief holds water in an upside-down glass.

Iridescent Art
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This is a quick activity (on page 2 of the PDF under Butterfly Wings Activity) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects.

Composting
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In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.

Shadow Dance
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In this activity, learners experiment with shadows and light sources to understand the relationship between the angle illumination and the shadow's length.

Make a Sun Clock: Tell Time with the Sun
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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

Mega Bounce
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In this outdoor activity (on page 2 of the PDF under GPS: Baseball Activity), learners will investigate the transfer of energy using sports equipment.

Ice Melt
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In this activity, learners will explore basic information about thermodynamics by experimenting with ice. Learners will compare ice melting rates on metal pans or plastic cutting boards.

Counting With Quadrants
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Millions of organisms can live in and around a body of water.

Wave Machine
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This is a great activity about wave interference. Learners will create their own wave machine and discover wave properties through hands-on investigation.

Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.

Egg-cellent Landing
Learners recreate the classic egg-drop experiment with an analogy to the Mars rover landing. The concept of terminal velocity will be introduced, and learners perform several velocity calculations.

Seismic Slinky!
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Did you know that a Slinky makes a handy model of earthquake waves?

Synaptic Tag
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In this outdoor activity, learners review the parts of the synapse and their functions by playing a game.

Water Sphere Lens
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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

Catapult
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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.

Eddy Currents
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In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.

Build a Solar System
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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

Space Weather Action Center
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In this interdisciplinary activity, learners create a Space Weather Action Center (SWAC) to monitor solar storms and develop real SWAC news reports.