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In this activity, students experiment to test the hypothesis that Mars was once hotter. The activity requires some advance preparation by the teacher: the day before the activity, need to place a plastic bottle filled with water in the freezer.... (View More)

This is a booklet containing 20 problem sets that involve a variety of math skills, including equations and substitution, time calculations, reading, algebra, and more. Each set of problems is contained on one page. Learners will use mathematics to... (View More)

Audience: Middle school, High school
Materials Cost: Free

This interactive, online activity asks learners to read information and tables to determine the correct sequence of events associated with servicing the Hubble Space Telescope. Students use the clues provided in the text and graphics to organize the... (View More)

This is an article about the color of the sky. Learners will read about and discuss the colors of the day- and night-time skies. They may sing the Top-down Black and Blues, a song about the sky; or they may write a poem, essay, or song about the... (View More)

Audience: Middle school
Materials Cost: Free

In this short demo/activity, a balloon with baking soda in it is stretched over the mouth of a flask or bottle containing vinegar. The balloon is tipped so that the baking soda falls into the vinegar, and the reaction creates carbon dioxide, which... (View More)

This is an activity about the periodicity of the solar cycle. Learners will calculate the number of M-class solar flares as a percentage of the total number of X-ray solar flares and graph these results as a function of time. When compared to a... (View More)

Audience: Middle school, High school
Materials Cost: Free

This series of short articles details the discovery and subsequent impact of Comet Shoemaker-Levy 9 on Jupiter. The impending impact created quite a buzz among scientists since it marked the first of its kind. Student may work independently or in... (View More)

This is a design challenge about heat transfer and insulation. Learners will apply the scientific method to design and build a container that will keep items cool when placed in boiling water. They will practice collaboration in team-building and in... (View More)

Audience: High school
Materials Cost: Over $20 per group of students

This interactive, online activity introduces students to the electromagnetic spectrum. Students view the electromagnetic spectrum in its entirety and become familiar with the characteristics of waves. Images of the sun in different wavelengths of... (View More)

Keywords: Light and color
Audience: Middle school, High school
Materials Cost: Free

The Gamma-ray Burst Skymap website automatically updates for each gamma-ray burst as it occurs, whether detected by Swift or other orbiting satellites. For each burst, the location on the sky, star map, constellation and detecting mission are... (View More)

Audience: Informal education