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Chapter 20: Stars and Galaxies

Our Star, the Sun
This site gives an explanation of the various radiation from the sun, including the Van Allen belts, an MPG movie showing sunspots, and an explanation of how these radiation affect humans and the earth. How does the sun's activity affect our lives?

Sun Picture List
The University of Arizona has posted various pictures and movies of the sun. Download some of these files and then give a presentation to your class explaining the solar phenomena.

SDAC Home Page
This is the home page for the Solar Data Analysis Center and includes the latest news and observations of our sun. Periodically check this site and make your own solar class newsletter.


Phenomena Cross Reference - DOPPLER EFFECT
Visit this page to see an animation demonstrating the Doppler Effect. How do sound waves and electromagnetic waves behave similarly with this effect?

The Doppler Shift
Ask a NASA scientist about the Doppler shift. Here is the answer and detailed explanation. Use your own words to write an explanation of the Doppler shift in your science journal.

Unit 6: Astronomy

Virtual Trips to Black Holes and Neutron Stars
Visit this site to learn more about black holes and neutron stars. View the MPEG video of a virtual trip into a black hole. Then write a short story about an expedition to find a black hole.

Pictures from the Edge
Here is a gallery of space images. Choose the "Constellations" link to find the different constellations in the night sky. Use this guide to find Polaris in Ursa Minor. Try to identify other constellations.

Hubble Space Telescope
This is the home page of the Space Telescope Science Institute, where the Hubble is maintained. Here you can find excellent pictures and links to news stories and explanations of images. Make your own computer presentation of these images, explaining what they are and where they occur.

Galileo and the Telescope
Learn about Galileo and his telescope. Use the directions on this site make a telescope like Galileo's and use it to look at some celestial bodies.

The Nine Planets
Take a tour of our solar system with countless links, pictures, and statistics. Use models to make your own solar system. Include vital statistics and interesting facts about each planet in your model.

NASA
This is NASA’s home page, with daily updates and links to the countless NASA sites. Make a class newsletter that runs updates on NASA news.

Electromagnetic Spectrum
This page offers a nice review of the electromagnetic spectrum. With a partner, make a poster that shows the different wavelengths of the spectrum.

Welcome to the Mars Mission!
A tour of the current Mars missions: Sojourner, Pathfinder, and Surveyor. As a small group, put together a news report that explains NASA's latest efforts to survey the red planet.

ASTRONOMY Magazine
This is the Web page for Astronomy, the world's largest English-language magazine for astronomy enthusiasts. Use this online magazine to research recent astronomy news and write your own news article.