In this activity, the teacher will construct a "comet" from ingredients that closely resemble the substances which make up a real comet. A list of ingredients, materials, and instructions are provided. Students can watch the comet as it melts, releasing jets of carbon dioxide and becoming pitted with craters in much the same way as a real one. Full description.

In this activity, students create a model ocean over which "wind" will be blown, and observe the relationship between the wind and the resulting ocean surface currents. The activity reinforces the concept that surface currents in the ocean are mostly caused by wind. A materials list and instructions are provided, and links to a glossary are embedded in the text. Full description.

This activity will help students understand how white light is broken up into its component colors by a diffraction grating and what the relationships are between the wavelength, frequency, and energy of light. Objectives, applicable standards, and pre-requisite materials are described, and instructions and a materials list are provided. Full description.

This tool was designed by NASA engineers to demonstrate and teach principles of microgravity and its relationship to science and math. Teachers may perform a series of demonstrations to provide a visual, physical connection between free-fall and microgravity conditions and to understand why certain experiments are performed under microgravity conditions. Full description.

Most satellite instruments look only straight down, or toward the edge of the planet. To fully understand Earth's climate, and to determine how it may be changing, we need to know the amount of sunlight that is scattered in different directions under natural conditions. The Multi-angle Imaging SpectroRadiometer (MISR) is a new type of instrument, which is designed to address this issue. It views Earth ... Full description.

Visitors can access general information on the greenhouse effect, how it works, and what impact human-produced emissions are having on the global climate. Materials presented here include discussions of the potential impacts of climate change, actions being taken to mitigate the effects, news articles and publications, tools for estimating emissions and calculating the benefits of reduction strategies, ... Full description.