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Combustion
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In this chemistry activity, learners discover that the weight of the product of combustion is greater than that of the starting material.

Cafe Wall Illusion
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In this fun and interactive online exhibit, the straight lines of a tile wall appear to curve. The learner moves the rows of tiles and changes the color of the grout to achieve the intriguing effect.

Guess My Rule
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In this simple game, learners start to understand how to sort and categorize objects by trying to guess the connection between three items that someone else has chosen.

Try Growing Your Own Mold
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This is a hands-on activity that uses bread and household materials to grow mold. Learners collect dust from a room, wipe it on food, and contain it. One to seven days later, mold has grown.

The Power of Graphene
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This lesson focuses on graphene and its electrical properties and applications.

Heat Capacity: Can't Take the Heat?
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Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

Fireworks in a Glass
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In this activity, learners use water, oil, and food coloring to observe a chemical reaction that creates a shower of colors inside of a glass.

Sweat Spot
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In this activity, learners use a chemical reaction to visualize where moisture forms on the body.

Cryptographic Protocols: The Peruvian Coin Flip
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This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people who d

Exploring Structures: Butterfly
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In this activity, learners investigate how some butterfly wings get their color.

Chemical Methods of Control
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In this lab, learners evaluate the relative effectiveness of various chemical substances (i.e. garlic powder, bathroom cleaner, mouthwash, etc.) as antimicrobial agents.

Frog Olympics
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Did you know that a bullfrog can jump a distance of 10 times its body length? Learn more about nature's most acrobatic amphibian, the frog, through this set of short, hands-on activities.

The World's Water
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Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

Single Replacement Micro-Reactions
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In this chemistry activity, learners use common chemicals and metals to explore single replacement reactions.

Build a Better Roof
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In this activity, learners will engineer a roof using simple materials to protect a construction paper person from a rainstorm.

Viral Packaging
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In this activity, learners create virus models, including nucleic acid and proteins, using simple materials. This resource includes information about virus structure and gene therapy.

Changing Colors
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In this activity, learners will explore how different colors of lights interact with objects around them. Will a blue object stay blue with a red filter?

I Spy Nano!
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In this game, learners try to find nano-related objects on a game board. Learners investigate the different ways nano is in the world around us.

Eyewitness Game
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In this demonstration (9th on the page), learners explore eyewitness memory and how memories differ amongst individuals. While the rest of the group is minding their own business (i.e.

Monitoring Amphibians
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In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.