ORIGINS Earth is Born How Life Began Where Are the Aliens? Back to the Beginning ADDITIONAL RESOURCES REFERENCE LISTS INDEX CREDITS Results: Sort By: < Back| 21-40 of 41| pages: 1 2 3 | Next > Deep Sea Vents Gallery Exhibition Materials for grades 9 through 12 Take a virtual stroll through the Deep Sea Vents Gallery, which is part of the museum's Hall of Planet Earth. You'll see pictures and videos of some of our planet's most ancient forms of life. Webpage [plugins: QuickTime, Acrobat Reader] More about this Resource Ernst Chladni and Rocks from the Sky Article for grades 9 through 12 Today, we accept the notion that enormous rocks exist within our solar system and that some of them fall to Earth. A little over 200 years ago, though, this idea garnered skepticism and ridicule. Webpage More about this Resource Fossil Microbes on Mars? Article for grades 9 through 12 A meteorite that escaped from Mars 16 million years ago was found recently in Antarctica. Does it, or doesn't it, hold evidence that proves the existence of life on the red planet? Webpage More about this Resource Georges Lemaître, Father of the Big Bang Article for grades 9 through 12 When a Catholic priest—cosmologist first proposed that the universe began as a "primeval atom," it seemed preposterous. Yet, within a few years, his theory had helped revolutionize cosmology. Webpage More about this Resource How the Sun Works Activity for grades 9 through 12 Talk about a long-term power source. For billions and billions of years, the Sun has been giving off energy that equals 4 x 1026 watts. What keeps the Sun burning so bright? Webpage More about this Resource Inge Lehmann: Discoverer of the Earth's Inner Core Article for grades 9 through 12 Each one of the thousands of earthquakes that occur every year offers a brief glimpse of what's happening deep inside the Earth. Lehmann used seismic signals to change our knowledge of the Earth's core. Webpage More about this Resource James Hutton: The Founder of Modern Geology Article for grades 9 through 12 Until the late 18th century, most people believed the Earth was about 6,000 years old. Hutton changed this belief by proposing that geologic forces operate at the same rate today as in the past. Webpage More about this Resource John Michell and Black Holes Article for grades 9 through 12 Imagine gravity so strong that even light is contained by its force. When a country parson first described black holes in 1783, the concept was so ahead of its time that it was mostly ignored. Webpage More about this Resource Looking for Life in Antarctica … and on Mars Article for grades 9 through 12 If you want an idea of the conditions on Mars, journey to Antarctica. Take a close look at the work of an astrobiologist studying Antarctica's valleys, the "most Mars-like places on Earth." Webpage More about this Resource Neutrino Observatories Article for grades 9 through 12 Update your image of astronomers. Today they spend most of their time peering into computer screens rather than through the eyepiece of a telescope. Learn what this new vantage point has gained them. Webpage More about this Resource Olber's Paradox: Why Is The Sky Dark at Night? Article for grades 9 through 12 In the midst of a forest, all you can see is a wall of tree trunks. So why, then, don't we see a wall of starlight when we look up at the forest of stars in the night sky? Webpage More about this Resource Retrieving a Stromatolite from the Sahara Desert Article for grades 9 through 12 Why did museum scientists travel to the Sahara to retrieve a boulder? This stromatolite was built by microbes, the only life that existed on Earth until about a billion years ago. Webpage More about this Resource Rock Dating Gallery Article for grades 9 through 12 The discovery of radioactivity in 1896 made it possible to determine the precise age of rocks. But how exactly does radioactive element dating work? Find out with this multimedia overview. Webpage [plugins: QuickTime, Acrobat Reader] More about this Resource Space Weather Article for grades 9 through 12 The Sun continuously sheds its skin, blowing a fierce wind of charged particles in all directions. Find out what happens when this wind—carrying mass from a solar storm—slams into Earth. Webpage More about this Resource The Abundance of Elements in the Sun Activity for grades 9 through 12 What’s the universe made of? Scientists tackle this puzzle by studying the composition of the different objects contained in the universe. In this activity the object is the Sun, and the tools are the periodic table and a graph. Webpage More about this Resource The Cosmic Microwave Background Radiation Article for grades 9 through 12 At this distance in time and space, can we prove that the universe was created with a single explosion? See how scientists have detected a faint remnant glow that supports the Big Bang theory. Webpage More about this Resource Ultra-High-Pressure Experimentalist Who Studies the Deep Earth Article for grades 9 through 12 The intense heat and pressure of the deep Earth are hard to imagine—and even harder to re-create. Currently, scientists need to work with samples so small they look like a grain of ground pepper. Webpage More about this Resource Vera Rubin and Dark Matter Article for grades 9 through 12 For every visible star in the observable universe, there are nine masses that are invisible and unidentified. Learn more about the astronomer who proved the existence of dark matter. Webpage More about this Resource Water on Mars? Article for grades 9 through 12 News that the Mars Global Surveyer showed evidence of liquid water on Mars caused quite a buzz. Why? Liquid water is the "smoking gun that tells us Mars has all the elements for life." Webpage More about this Resource What's the Composition of the Universe? Activity for grades 9 through 12 Can the universe be contained in colored sprinkles? Find out by using confetti or sprinkles to create samples that show the abundance of elements in different substances found in the universe. Webpage More about this Resource < Back| 21-40 of 41| pages: 1 2 3 | Next >