Earth Science
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[ Geology (84) ]
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Fall in Pennsylvania
""Did you know that leaves that change color in fall actually have those same beautiful colors all year round? The green pigment, chlorophyll, is so concentrated in the spring and summer that it masks the other pigments that are already there." Take a virtual trip to Pennsylvania. With birds chirping in the background, you can view six fall foliage Web cams. Okay, there’s not a lot of action, but if you fall in love with one of these serene scenes, you can download it to use as wallpaper for your PC desktop."
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Fall Foliage Index
""For all you Leaf Peepers - this is the place to get the latest on where to admire autumn’s color show!" Jim Cantore, autumn expert, forecasts that this year’s drought "will mean a shorterperiod between color change and defoliation." So timing, as they say, is everything. With its national perspective, Weather.com includes month-by-month foliage maps for all parts of the country (even the West.)"
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Fall Color
""Nature’s annual autumn color festival is certainly one of the greatest shows on earth. Each fall, millions of trees in the eastern deciduous forests respond to the shorter days and cooler nights by beginning preparations for their dormant winter period. It is just business as usual for the trees, but for us, it is a spectacular display of the beauty and diversity of nature." This fabulous site from North Carolina includes a visual guide to fall leaves, a detailed scientific explanation of fall colors, and tidbits of fall folklore ("A warm November is the sign of a bad winter.")"
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Explorezone.com: Volcano News
A Surfnetkids Honorable Mention site.
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Explorezone.com: El Niño
A Surfnetkids Honorable Mention site.
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EPA: Drinking Water Kids Stuff
"The EPA offers a combination of online lessons, games, and three printable curriculum guides for grades K through 12. Make "Games and Online Activities" your first stop, where (despite the title) you’ll find educational, illustrated articles on the water cycle, water treatment, conservation tips, water trivia and two word games. For fun projects for home, scout troop, or classroom (such as "Build Your Own Water Cycle" and "Build Your Own Watershed.") visit "Classroom Activities & Experiments.""
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EPA: Acid Rain
"‘Acid rain’ is a broad term used to describe several ways that acids fall out of the atmosphere. A more precise term is acid deposition, which has two parts: wet and dry. Wet deposition refers to acidic rain, fog, and snow. Dry deposition refers to acidic gases and particles. In addition to the concise description of the problems caused by acid rain, the best clicks are the glossary, science experiments, learning activities and the Acid Rain Program Progress Report. This Adobe document (which requires the free Adobe reader) details the progress of the Acid Rain Program since it’s enactment in 1990."
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EPA Explorers Page
"This U.S. Environmental Protection Agency site uses art, coloring, comics, stories and games to involve kids in environmental science. One of the must-play activities is the Shockwave Dumptown Game. As City Manager, your job is to clean up the city. Keep an eye on the budget as you implement waste-reduction programs such as home composting, drop-off recycling and yard trimmings pick-up. Interested in telling the President what you’ve done (in real life) to clean up the planet? Find out how on The Trophy Case page."
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ENN: El Niño Special
"This special report from the Environmental News Network gets high marks on both content and presentation. Why the sudden El Niño hubbub? Is this a recent weather phenomenon? No, but our ability to forecast, measure and understand the El Niño forces has increased tremendously in the last decade. Peruvian fishermen were the first to notice that roughly every two to seven years their normally cold waters would become warm, and the usual south-to-north current was reversed. These conditions wrecked havoc with the fish population, and were an economic disaster for the fisherman. Because these weather variations generally occurred in December, they were named "El Nino" (boy child) after the infant Jesus."
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Enchanted Learning: The Intertidal Zone
"The colorful Enchanted Learning site for elementary ages features a nice illustration of the four intertidal zones: from the spray zone (which is usually dry) to the low tide zone (which is almost always wet.) But the best clicks are the twenty printable, color-able animal printouts arranged in alphabetic order from anemone to zooplankton. There are related sections on Tides (follow the hyperlink in the opening text), Walruses, and Biomes."
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