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Why Do Leaves Change Color in the Fall?

In Autumn, leaves change from green to red, yellow or orange. Find out the science behind it.

Fall Colors - Forest Service
Fall Foliage Dates
Why Leaves Changes Color

Autumn Leaves, Pepper Pike, Ohio

Government Sites

Absolute Zero: The Science of Cold - (National Institute of Standards and Technology) - Bill Phillips, a Nobel Prize-winning physicist, spoke about the science of cold temperatures to approximately 800 students, parents and teachers on Jan. 9, 2008. He showed how the properties of everyday materials--from inflated balloons that become flat as Frisbees to carnations that shatter like glass--change drastically at cold temperatures.

Edison National Historic Site - Edison's improvements to the telegraph and the telephone placed him on the cutting edge of communication technology at the turn of the Twentieth Century. If Edison were living today, he would be interested in both the Internet and the World Wide Web, a technology that can now make the legacy of the world's most famous inventor available to you.

Engineering, Industry, and Invention - (Smithsonian) - This site has many resources on topics, such as manufacturing, energy and power, and invention and innovation.

Famous People in Energy - (Energy Information Administration) - Brief biographies of individuals who have made significant contributions to energy and science.

George Washington Carver - George Washington Carver was born a slave in Diamond Grove, Missouri, around 1864. He is one of the nation's most famous agricultural scientists. Learn about his work.

Invention Playhouse - Want to Play? Want to Invent? What’s the Difference? When asked what inspired them to become inventors, many adults tell stories about playing as children. Read and learn about tinkering, exploring, social play and collaboration.

Meet Amazing Americans - America's Story - Discover the inventors, politicians, performers, activists and other everyday people who made this country what it is today.

Modern Inventors Documentation Program - Learn about the beginnings of the bread slicer, the creation of the corn picker or the makings of the matchstick. You can look up all kinds of inventions in the MIND database.

Natural Inquirer - (Forest Service) - This journal was created so that scientists can share their research with middle school students. Each article tells you about scientific research conducted by scientists in the USDA Forest Service. All of the research in this journal is concerned with nature, trees, wildlife, insects, outdoor activities and water.

Thomas A. Edison - The phonograph and the motion-picture projector were only a few of Thomas Alva Edison's more than 1,000 inventions.

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Other Resources

Albert Einstein: Image and Impact - Read about the life of the man behind the theory of relativity.

Andrei Sakharov - Andrei Sakharov (1921-1989) was a Soviet physicist who became, in the words of the Nobel Peace Committee, a spokesman for the conscience of mankind.

Beautiful Science: Ideas That Changed The World - Highlights four areas for visitors to explore: astronomy, natural history, medicine, and light. A gallery on each focuses on the changing role of science over time, particularly the astonishing leaps in imagination made by scientists over the years and the importance of written works in communicating those ideas.

Exploring Leonardo da Vinci - Leonardo da Vinci was one of the greatest painters of the Italian Renaissance, yet he left only a handful of completed paintings. Explore this site and learn about this fascinating scientist, inventor, and artist.

Ice Stories: Dispatches from Polar Scientists - Visitors will enjoy learning about the thoughts and experiences of the scientists working in Antarctica and the Arctic. Just click on the "Check out the dispatches" button. Visitors can learn how penguins function as barometers of climate change, get up close and personal with a smattering of charismatic marine mammals, and learn about the fascinating South Pole Telescope.

Linus Pauling - Check out these famous scientists and explorers

Marie Curie and the Science of Radioactivity - Marie Curie discovered the mysterious element radium. It opened the door to deep changes in the way scientists think about matter and energy.

Mars Millennium Project - Take a journey of inspiration and discovery as you explore Mars through answers to questions asked of artists, scientists, engineers, and astronauts.

Young Scientist Challenge - Do you have what it takes to be America’s Top Young Scientist? Discovery Education/3M Young Scientist Challenge is the premier national science competition for students in grades 5 through 8. The Young Scientist Challenge is designed to encourage the exploration of science among America’s youth and to promote the importance of science communication.

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Page Revised - 10/30/2009

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