# Nasa Wavelength

## Matching Birthdays

This excercise uses "the birthday problem," a well-known probability riddle with a surprising result. It serves as a calculator exercise for students and beginning computer programmers.

## SciJinks: How Does a Hurricane Form?

Hurricanes are discussed as one type of tropical cyclone; the article then describes the four stages of cyclone development. The site includes a video of Hurricane Katrina and a link to a related game.

## NASA Satellite Sees Carbon Dioxide

In this problem set, learners will analyze a map of atmospheric carbon dioxide derived from satellite data. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change.

## Can Photosynthesis Occur At Saturn?

In this hands-on experiment, students will investigate the basic principle of photosynthesis and learn how light intensity diminishes as a function of distance from the light source. Questions help learners connect these two ideas to determine if photosynthesis could occur at Saturn.

## Magnetic Field and Life

This is a lesson where learners explore magnetic forces, fields, and the relationship between electricity. Learners will use this information to infer how the Earth generates a protective magnetic field.

## Exploring the Spectrum

This activity introduces students to the visible light spectrum, and demonstrates what happens to the appearance of an image when certain wavelengths of light are blocked by filters or made visible using special tools. Students are lead through experiments with light and filters, demonstrating th

This is a lesson about radiation and the various sources of radiation that a spacecraft may encounter in its journey.

## Water Walk

In this field activity, students conduct a visual survey of a hydrology study site, and collect information about land cover and water quality. These observations are used to stimulate research-able questions about land cover and water chemistry that can be the focus of future investigations.

## Searching for Life on Mars

This is a lesson about the search for life on Mars. Learners will participate in three activities. In the first activity (Imaginary Martians) learners will compare a fictional organism with what they know about life on Mars today.

## GLAST Launch Fact Sheet

This four-page color brochure describes the science of NASA's GLAST mission, as well as providing tables that summarize the instrumental parameters and the mission participants.