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Earth and space science  
Materials Cost:
$5 - $10  
Educational Level:
High school  
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Students will use the law of reflection to reflect a laser beam off multiple mirrors to hit a sticker in a shoebox. Since X-ray telescopes must use grazing angles to collect X-rays, students will design layouts with the largest possible angles of... (View More)

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)

In this activity, students are introduced to light and colored gels (filters). Students make and test predictions about light and color using gels; learn about the importance of gels (filters) to astronomers; then analyze images taken with regular... (View More)

In this activity, students build a photocell detector, and use it to detect different colors of light in a spectrum. Then they place the detector just outside the red region of the visible light spectrum and see that the detector detects the... (View More)

In this lesson, students will investigate the Doppler Effect and discover how the same principle can be used to identify a possible tornado in storm clouds and investigate the rotation of distant galaxies. Students should be familiar with the... (View More)

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)

This demonstration allows students to visualize inversion in a fluid, explain it in terms of density, and apply the concept to weather systems and convection. Materials required include four Ehrlenmeyer flasks, two thin glass plates, a heat source,... (View More)

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

In this activity, students are challenged to predict the next day's weather based on cloud observations, prevailing winds, and barometric measurements over a period of several days. The activity can be done as guided or open-ended inquiry and serves... (View More)

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