This video segment adapted from FRONTLINE introduces the electromagnetic spectrum and explains how the various types of electromagnetic waves are distinguished by the amount of energy each wave carries.

From the Atomic Archive - the online companion to the award-winning CD-ROM. This page (and the couple that follow from it) describe the use of fusion reactions in a hydrogen bomb. A schematic diagram of an H-bomb is given and discussed....

Click to read different historical documents in chemistry related to the history of the study and discovery of radioactivity.

In this interactive module students will explore the life cycle of stars and how they produce energy.

Home page for NASA's Discovery Program Messenger to the planet Mercury. Site provides details of the planned mission, its experiments and the science and management teams. Linked Quicktime animation files are very large and detailed....

Use this tool to learn facts about the range of the electromagnetic spectrum, from radio waves to gamma rays.

Using a student-teacher dialogue format, this page discusses the nature of light as an electromagnetic wave and the electromagnetic spectrum.

Through informational text, interactive activities, practice problems, and virtual simulations, students explore the properties of electromagnetic waves.

Explore the electromagnetic spectrum and learn about each type of energy on the spectrum.

This site has lesson plans and activities related to radiation. Activities include measuring radiation with a Geiger counter and observing radiation 'footprints' in a cloud chamber.

Interactive explores the exposure of radiation to the human body and its effects both indirect and direct. Find out the sources of radiation that people are exposed to daily.

A mathematically understandable presentation of relativistic energy. Parts include Relativistic Energy, Rest Mass Energy, Conservation of Energy, Pair Production, Relativistic Kinetic Energy, and even Kinetic Energy. A couple of...

[Free Registration/Login Required] An informational text about electromagnetic radiation and the effects it creates. A question sheet is available to help students build skills in reading comprehension.

A discussion of reflecting telescopes and their use in radio astronomy. The types of information gained from and the research emphasis fueled by such telescopes is described. Site uses Hollywood references and a humorous style.

This site examines the black hole as an object in astrophysics. Delve into this comprehensive resource that covers this concept from its history, to qualitative physics, the reality of black holes, mathematical physics and more.

Scholastic's biography of Paul Zindel contains the author's memories of his early life, career choices, and reasons for writing: "I have to tell stories because that's the way the wiring went in."

Site provides the ABC's of nuclear science including radioactivity and gamma decay to fission and comic rays.

This is a site from NASA that contains an interesting and fun way to learn about the electromagnetic spectrum. Kate receives a strange riddle from her grandfather. Find out what it says and go through the gateway to the Land of the Magic...

Wikipedia offers information on spectral line, a dark or bright line in an otherwise uniform and continuous spectrum.

A gallery of astronomy images which depict galaxies, comets, the moon, planets, nebulae, supernovae as seen in various regions of the electromagnetic spectrum. Each image in the gallery is described. Fascinating!

This Imagine the Universe site provides an introduction into the multiwavelength universe and astronomy. Site provides graphics, links to a quiz, facts on this topic as well as teacher resources.

This article presents illustrations and a general discussion about radiation.

Exploration of the different types of commonly used detectors with a description of each.

Editor Charlotte Zolotow's large site offers this page about Paul Zindel, how they met, and how she influenced his creative life. Especially interesting is Zindel's description of all she brought to his life and craft as a writer.