Cloning: Are Humans Next?
"Besides pigs and sheep, scientists have also cloned other animals, including cows and mice. Anumber of scientists said they believed it was only a matter of time before human cloning wouldbecome a reality. However, this prospect raised ethical concerns among many people. WorldBook presents an introduction to cloning and its history, leading to a summary of the argumentsused both for and against human cloning."
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Cells Alive
A Surfnetkids Honorable Mention site.
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Cells R Us
"Starting with the union of two special cells (""Once upon a time, before you were born, two cells collided, one big, one small."") Cells R Us tells the story of the ""building blocks of life"" in an online slide show. Topics defined and introduced include cells, DNA and chromosomes. Cells R Us was created by Imperial Cancer Research Fund (of London, England) for upper elementary grades."
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Cells Alive!
"The best clicks for high-school students (and adults) are found on the left-hand menu starting with Plant Cells, Animal Cells and Mitosis. Each chapter includes a dozen sub-topics (such as nucleus and cell membrane) that are covered with their own illustrated page. Additional highlights of the site are the amazing photographs found in Cell Cams, Cell Gallery and on free e-postcards to send to friends from your biology class. Think you know your stuff? Try the three tough quizzes on Cell Structure, Microbes and The Immune System."
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CDC: Influenza
A Surfnetkids Honorable Mention site.
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BrainPOP: Genes
"In order to understand cloning and how a cloned animal differs from one with two geneticparents, you need to have a basic understanding of genetics. This BrainPOP movie is a good placeto start. After viewing the short animation, take the quiz (""Which cells in your body containDNA?"") and try the printable activities."
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BrainPOP: Cells & Body Basics
"What is the process by which water flows through cells? A: hydrorefusion B: osmosis C: pinocytosis This fun page explaining cells is just one of dozens that BrainPOP offers on science, technology and health — and I’ve recommended them frequently over the years. BrainPOP Cells features a Flash movie, followed by a quiz and a few printable activities. As for the answer to the quiz question, you’ll just have to log on, watch the movie, and take the self-grading quiz yourself."
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American Experience: Influenza 1918
"The influenza outbreak of 1918 killed over 600,000 Americans ""until it disappeared as mysteriously as it had begun."" Created as a companion site to the PBS film of the same name, it includes features not found in the movie, and a teachers guide. As you read through the material, contrast the ways in which the public health officials of 1918 tried to combat the spread of the infection (""chew food carefully and avoid tight clothes and shoes"") with today’s efforts."
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A to Z Science: Cells
A Surfnetkids Honorable Mention site.
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"AMNH: Infection, Detection, Prevention"
"Microbes are the oldest form of life on Earth. Some types have existed for billions of years. This great multimedia site from American Museum of Natural History (AMNH) explains microbes and bacteria and the role they play in infection. My favorite clicks are the interactive games sprinkled throughout the site, and the chapter titled ""How Lou Got the Flu."" But the most important section is Prevention Convention, which includes ten tips for staying healthy. For a two-page color-it-yourself version of the tips, look for the Print & Color link at the bottom of the page."
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