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View Resource Magnetism

This radio broadcast discusses the history of magnetism from the time of its discovery by an apocryphal Greek sheperd until the late 16th century and the work of William Gilbert. There is also discussion of who pioneered the study of magnetism, what theories they constructed from its curious abilities, and how the power of the magnet was brought out of the realm of magic and into the service of...

View Resource A Magnet as a Magnetometer

In this activity, students construct a magnetometer from a magnet and a spring balance and use it to locate buried objects in a tray. The activity will reinforce the idea that local fluctuations in Earth's magnetic field can be used to locate underground materials having magnetic properties. Working in groups, they will construct their instruments and use them to survey a large flat container in...

View Resource Astro-Venture Geology Educators' Guide

This is the third of four curriculum guides focusing on astrobiology and careers. Students are confronted with the challenge of searching for and designing a planet that would be habitable to humans. Using an online, multimedia module, students make changes to the Earth-s interior and draw conclusions about which factors are necessary for human survival. Students then engage in classroom...

View Resource Infrared: More Than Your Eyes Can See

The electromagnetic spectrum, spanning energies and wavelengths from radio waves to gamma rays, encompasses all forms of light. Infrared radiation, located in the range just beyond visible light, is emitted by all matter and is very useful in gathering data about Earth and space. In this video segment adapted from NASA by WGBH's Teachers' Domain project, visitors can learn about infrared...

View Resource Real-time Monitoring of the Earth's Magnetic Field

This site provides access to near real-time data on the Earth's magnetic field available at 14 United States Geological Survey (USGS) observatories across the world. The data includes fluxgate sensor measurements (H, D, Z, or intensity and declination) specifications and proton magnetometer data (F, or strength), and are available with a 12-24 minute delay. The data are 'preliminary' in nature,...

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