Narrow Search

Your search found 256 results.
Sort by:
Per page:

Now showing results 31-40 of 256

This demonstration shows that similar-appearing lights can be distinctly different, suggesting that the light emitted is generated in different ways. It requires some advance preparation/setup by the teacher and three recommended sources of orange... (View More)

This interactive, online activity provides a method for generating waves using a computer. Students can select the energy they want the waves to have, observe how the waves appear on the screen, and then measure the frequency and wavelength of the... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this inquiry investigation, students will learn about how light travels by using mirrors, prisms, and shadow makers. Supplies for this investigation include mirrors, prisms, objects of differing transparency, garden hose or spray bottle,... (View More)

This 28-minute film was created to explain how our current understanding of the Milky Way was reached using many different wavelength of the electromagnetic spectrum. Please note, the link is to a direct download of the video; this is a large file -... (View More)

Audience: High school
Materials Cost: Free

This article explains how Earth's atmosphere scatters the light from the sun, thereby creating the blue color we typically associate with our sky. Supplementing this article is an explanation of the importance of scattering sunlight. The article is... (View More)

Audience: Informal education
Materials Cost: Free

This comic addresses the question "What is color?" Using the Sun as an example, the comic discusses how visible light (white light) contains all the colors of the rainbow. It goes on to describe why our Sun is white, our sky is blue, and why sunsets... (View More)

This is a lesson about the electromagnetic spectrum. Learners begin by arranging a set of picture cards; in the discussion afterwards, this activity is related to the electromagnetic spectrum as an arrangement of energy waves. Next, using a... (View More)

In this activity, identified on the Infrared Zoo website as Lesson 3, students explore the Cool Cosmos Infrared Zoo database and investigate the differences between warm and cold-blooded animals. As a result, students discover how infrared imagery... (View More)

This textbook chapter traces the historical development of the modern scientific understanding of light, and reviews the electromagnetic spectrum and the Earth's atmospheric shield. The resource includes links to current news articles, and a suite... (View More)

In this activity, students experience a demonstration of light scattering that explains the blue colors in the Intersetllar Medium (ISM) nebulae, and the reddening of stars viewed through the ISM. It also explains the blue appearance of the sky on... (View More)

Audience: High school, Higher education
Materials Cost: $1 - $5