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Educational Level:
High school  
Materials Cost:
$5 - $10  
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Students will explore Earth's magnetic field using a dipole magnet and compass, and then build a model of Earth's ring current and use it to observe a magnetic field’s response to a fluctuating electric current in this hands-on investigation of... (View More)

Keywords: Magnetism
Audience: High school
Materials Cost: $5 - $10 per group of students

In this activity, student teams will create a controlled experiment by building ecosystems in two 2-liter bottles. Teams determine the control conditions of both bottles, identify a test variable, and run the experiment for several weeks to... (View More)

In this lab activity, student teams hypothesize which source has a greater becomes CO² concentration: their breath, auto exhaust, or air in the classroom. They test gas samples from each of these sources, plot data, and hypothesize about the... (View More)


Audience: High school
Materials Cost: $5 - $10 per group of students

This experiment has student teams comparing a sample of room air with one of the greenhouse gases - carbon dioxide, nitrous oxide, or methane - and observing the relative effectiveness of the gases in trapping infrared (IR) radiation. The activity... (View More)
