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Light and optics  
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Identifying similarities and differences  
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This is an online lesson which introduces the concept of astronomical filters and their connections to imaging different objects in space. Learners will explore perceptions of images as seen using different colors of light, construct a filter wheel,... (View More)

Audience: Middle school, High school
Materials Cost: Free

This activity deepens student understanding of the electromagnetic spectrum, enabling students to detect and consider wavelengths other than visible light. They learn how these other wavelengths can be used to "see" things we cannot see with our... (View More)

Audience: Middle school

In this activity, students study the range of colors in a visible light spectrum created from either a glass prism or holographic diffraction grating. This activity is in unit 2 of the "Space-Based Astronomy" guide that contains background... (View More)

In this activity, students construct an analytical spectroscope and analyze the spectrum produced when various substances are heated or excited with electricity. This activity is part of Unit 2 in the Space Based Astronomy guide that contains... (View More)

This activity is about the use of spectral data to identify mineral composition on Mars. Working in teams, students will compare and contrast spectra to identify similarities between Earth minerals and those from Mars. A short list of suggested... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free

This introductory lesson introduces the tool of scientific inquiry, beginning with observations inside and outside of the classroom, looking for changes, perspectives, and patterns. Measuring tools as simple as feet and fists are employed initially,... (View More)

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