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How Do Viruses Recognize a Target Cell?
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This activity demonstrates the specificity of viral vectors for target cells in gene therapy delivery methods using two approaches: 1) STYROFOAM® models demonstrate viral ligand binding to receptor pr

Newton's Laws Demonstrations
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In this collection of demonstrations, learners explore Newton's Laws of Motion.

Hull Engineering
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In this activity, learners explore how the hull shape impacts a ship's performance and stability.

Pulleys
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In this activity, learners build inexpensive pulley assemblies from pulley wheels used for sliding screen door replacement or from clothesline spreaders.

Exploring Tools: Special Microscopes
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In this activity, learners use a flexible magnet as a model for a scanning probe microscope (SPM). They learn that SPMs are an example of a special tool that scientists use to work on the nanoscale.

Water Clean-up
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This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.

How Plants Grow
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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.

Composting Bioreactor
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In this activity (page 19 of the PDF) learners will create a soda bottle bioreactor by exploring the science of composting, comparing variables such as reactor design, moisture content, and nutrient r

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

What's Hiding in the Air?: Acid Rain Activity
As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

Hopper Herding
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In this outdoor activity and game, learners roundup a "herd" of hopping insects and find out how many different kinds or species are in their herd.

Altered Reality
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In this activity, learners discover that the human brain is highly adaptable. Learners try to toss beanbags at a target while wearing prism goggles.

Foam Rocket
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In this activity, learners work in teams build and launch rubberband-powered foam rockets.

Neural Network Signals
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In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

Strong Bones, Weak Bones
Source Institutions
Most people will break a bone in their body at some point in their life, but how much force does it take to break one?

Wind Works!
Source Institutions
Learners will build and experiment with their own windmills made from simple household materials.

Shapes and Angles
Source Institutions
In this activity (page 7 of PDF), learners will identify the general two-dimensional geometric shape of the uppermost cross section of an impact crater.

Finding Red
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

Ocean in a Bottle
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In this activity, learners consider how oil spills behave in the ocean and what impact they have on marine wildlife.

Treasures in the Rough
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In this archaeology activity, learners make observations and conduct an experiment to demonstrate the effect saltwater has on artifacts.