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  • Eureka! Lab

    Scientists Say: Blood-brain barrier

    Blood-brain barrier (noun, “blood bray-n bare-ee-er”)A layer of cells between the blood vessels and the cells of our brains. The brain is very delicate and can’t be exposed to just anything in the blood. This barrier of cells lets oxygen and nutrients in. But it keeps out foreign substances, such as dangerous bacteria. The barrier is important, but it can also be difficult to deal with. When...
    09:00 AM, March 2, 2015
  • Eyelashes: The ‘sweet’ length

    Cosmetics commercials extoll the virtues of long, luxurious eyelashes. They even sell products to make them longer. But, new research indicates, in terms of eye health, long isn’t always better.There’s a so-called “sweet spot” in the range of lash lengths. It is about one-third the width of the eye. And it’s here that lash length appears most helpful. Eyelashes much longer than that will funnel...
    07:00 AM, March 2, 2015 Physics, Animals
  • Power Words aid STEM literacy

    Science News for Students is committed to producing the latest news from the world of science, technology, engineering and mathematics in a form accessible for tweens and teens. To encourage and develop vocabulary in accordance with Common Core standards for English language arts (Vocabulary acquisition and use grades 6 – 12*), we provide Power Words at the end of each article on the site.Those...
    21:41 PM, March 1, 2015
  • Our readability scores target tweens & teens

    Science News for Students is dedicated to reporting on current events in STEM fields that will be accessible to tweens and teens. Yet even adults should find the stories informative and engaging. What’s more, those stories are compatible with the new U.S. Common Core standards for language arts.In its commitment to ensuring that our stories will be accessible to all students in at least sixth...
    21:39 PM, March 1, 2015
  • Scientists confirm ‘greenhouse’ effect of human’s CO2

    For the first time, scientists have shown a direct link between rising levels of carbon dioxide — or CO2 — in Earth’s atmosphere and an increase in how much solar energy warms the ground. The finding supports a key theory about what’s behind the recent worldwide warming of Earth’s climate. It links a measurable share of that warming to human activities that release CO2. These include the burning...
    07:00 AM, March 1, 2015 Weather & Climate, Light & Radiation
  • Mice can teach us about human disease

    Zorana Berberovic gently lifts a small black mouse by its tail. As its hind legs rise up off the floor of its cage, the research technician slips a tiny vial under the mouse’s bottom. Berberovic lightly strokes her gloved finger against its belly. Within seconds, she is rewarded. A dribble of pee enters the vial."They have small bladders so there's not much," Berberovic says. Luckily, she adds, "...
    07:01 AM, February 27, 2015 Body & Health
  • QUESTIONS for Mice Can Teach Us about Human Disease

    SCIENCEBefore reading1.         What easily recognizable traits did you inherit from your parents?2.         You might have heard someone say, “I don’t want to be a guinea pig.” What does the expression mean?During reading1.         What does phenogenomics mean?2.         Using a mouse as an example, explain its basic phenotype.3.         What percentage of our genes do we share with mice?4...
    07:00 AM, February 27, 2015 Classroom Questions
  • Eureka! Lab

    Popping my own corny experiment

    Popcorn is one of my favorite foods. I love its squeaky crunch and the taste of butter and salt. Popping my own corn on the stove top makes me think of relaxing with a book or settling in with a fun movie. And now, it also makes me think of science.Scientists recently popped corn in a conventional oven to determine at what temperature the kernels explode. Then they invited the rest of us to run...
    09:00 AM, February 26, 2015
  • Ocean animals have mushroomed in size

    Ocean animals have been getter bigger over the last half-billion years. Not a little bigger. Not even a lot bigger. They have mushroomed gigantically, scientists now conclude.Their new finding lends support for something known as “Cope’s rule.” It holds that animals tend to evolve into species that are much larger than their distant ancestors. This hypothesis takes its name from the 19thcentury...
    07:00 AM, February 26, 2015 Animals
  • Intel STS 1999

    Top Winner Natalia Toro2nd Place David Moore3rd Place Keith Winstein4th Place Carol Fassbinder5th Place Rio Bennin6th Place Lisa Schwartz7th Place Scott Fruhan8th Place Kurt Mitman9th Place Diana Townsend-Butter10th Place Alexander Wissner-GrossGlenn T. Seaborg Award Winner Cullen BlakeAlumni Speaker Marcian "Ted" Hoff Jr.1999 Alumni UpdatesFormer Intel STS Finalist and Reporter Gives Students...
    16:30 PM, February 25, 2015

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