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 is the homepage of the SeaWiFS Project. Users can access remote imagery, datasets, information on the spacecraft and receiving stations, and data processing applications. Educational materials include a tutorial and presentation on ocean color, a teachers' guide with activities, imagery, and a teachers' workshop. Full description.

The Exploratorium digital library includes digital media, digitized museum materials related to interactive exhibits and scientific phenomena. Full description.

Atmospheric scientists investigating the possibility that human influences are changing the Earth's climate confront a significant problem - how do we actually detect climate change? As they participate in this classroom activity, students will develop the understanding that long-term climate averages are the result of significant annual climate variability and that random climate variability makes ... Full description.

Climate is generally defined as average weather over a long period of time. A place or region's climate is determined by both natural and human-induced factors. Students can read an overview of Earth's climate and participate in activities which explain the following concepts: distinctions between weather and climate, variability of daily weather measurements compared to long-term climate data, how ... Full description.

This resource presents information on global warming and the possible impacts of the melting of the Antarctic ice sheets and the resulting rise in sea level. Materials include a video excerpt, interviews with proponents and skeptics on the issue of global warming, maps and descriptions of how the world's coastlines might change as sea levels rise, and the study of ice cores to reveal climatic conditions ... Full description.

Visitors to this site can read accounts and view video webcasts about recent astronomical events and NASA missions. Links to related activities and sites are included. Full description.