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Invent on the Spot
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In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

The Search for Secret Agents
Learners tour their school or home looking for sources of indoor air pollutants (IAPs).

Algebra: Aw Chute!
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In this math lesson, learners determine and compare the rate of descent of various learner-constructed parachutes. Learners construct parachutes that will have maximum hang times.

Probability: Remove One
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In this math lesson, learners are given 15 chips and a number line labeled from 2-12.

The Ladder of Life
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In this activity, learners identify the DNA base bars guanine, cytosine, thymine and adenine. Learners create a DNA model using colored paper clips to resemble these base pairs.

Finding the Carbon in Sugar
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In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

Cabbage Juice Indicator
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In this chemistry activity, learners make indicator solution from red cabbage. Then, learners test everyday foods and household substances using the cabbage juice indicator.

Makin' Tracks
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In this activity, learners make plaster casts of an animal track to learn more about animals and animal behavior.

Seasons and Shadows: Investigate How Shadows Shift Throughout the Year
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In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer?

A System of Transport
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In this activity about the human heart (on page 5 of the PDF), learners work in teams to simulate the volume of blood moved through the circulatory system by transferring liquid into--and through--a s

Catch Your Breath: Build a Spirometer and Measure your Lung Capacity
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In this activity, learners will measure their lung capacity by making their own spirometer. Learners will then explore factors that affect the amount of air the lungs can hold.

Patterns and Functions: Fill 'er Up
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In this math lesson, learners predict, interpret, and sketch graphs of functions related to the shapes of bottles. A measure of water is poured into a container.

Special Effects: Titanic and Beyond
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In this activity, learners investigate how geometry plays a role in perspective.

Computation and Estimation: Roll Out The Barrel
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In this math lesson, learners apply mathematical modeling to solve a real-world storage problem, in which a manufacturing company is given two options for storing oil barrels.

Changing Shadows
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In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.

Damsels and Dragons
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In this outdoor activity/field trip, learners conduct experiments to explore where dragonflies and damselflies perch or rest, and how the flies change behavior in reaction to other flies or fly decoys

Battling for Oxygen
Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

Automotive Emissions and the Greenhouse Effect
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In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases.

Test the Finger Wrinkle Hypothesis
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Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

Sand Study
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In this geology activity, learners use a microscope to discover and identify the components of sand.