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Your search has returned 223 articles:
  • Asteroids boiled young Earth’s oceans

    It didn’t take long for early life on Earth to get into hot water. Very hot water.Evidence from ancient rocks suggests that asteroids slammed into our planet around 3.3 billion years ago. The impacts would have released huge amounts of energy. So much energy that this heat baked the skies and boiled the oceans.These dramatic events would have shaped the evolution of early life, says Donald Lowe....
    07:00 AM, May 26, 2015 Planets, Earth, Oceans
    Readability Score: 7.6
  • Eureka! Lab

    Scientists Say: Taphonomy

    Taphonomy  (noun, “Ta-FAHN-oh-mee”)The study of what happens to an organism’s body after death. Scientists may examine how bacteria, fungi and insects break down an animal’s body, or how a dead organism might become a fossil over time.In a sentenceStudying taphonomy can reveal how bacteria help to preserve a dead body.Follow Eureka! Lab on TwitterPower Words(for more about Power Words, click here...
    07:00 AM, May 25, 2015
    Readability Score: 8.6
  • This is no cold fish!

    /*-->*/ Fish as a rule stay the temperature of the water around them. Not the opah. As it hunts in the ocean’s dark depths, this fish keeps much of its body distinctly warmer than the frigid water around it. That makes this species the closest of any fish to the warm-bloodedness typical of birds and mammals.The opah (Lampris guttatus) is about the size of a car tire and almost as round. That...
    07:00 AM, May 24, 2015 Animals, Oceans
    Readability Score: 7.6
  • Collecting trash in space

    PITTSBURGH, Pa. — Satellites play big roles in modern life. Some look downward to monitor environmental conditions on Earth. Others look outward in search of major solar flares that can disrupt the transmission of electrical power to homes and businesses. Some spy on our enemies. Others relay communications around the globe. But all of these million-dollar marvels of technology can be knocked out...
    13:00 PM, May 22, 2015 Space, Technology & Engineering
    Readability Score: 7.2
  • The bugs within us

    You are full of bugs.No, not cockroaches and ants. These bugs are tiny, single-celled bacteria you can’t see. They blanket your skin. They also fill your stomach, intestines, lungs and mouth.In fact, roughly 100 trillion of these microscopic critters live in (and on) the human body. A typical person contains only about 37 trillion human cells. In other words, bacteria might outnumber human cells...
    07:15 AM, May 22, 2015 Microbes, Fungi & Algae, Animals, Brain & Behavior
    Readability Score: 7.0
  • Questions for ‘The bugs within us’

    To accompany feature: The bugs within usSCIENCEBefore reading:1.    Bacteria live everywhere. Where would you expect to find especially large numbers of them in your home?2.    Research the roles bacteria and other microbes play in making these food products: beer, cheese, bread, pickles and yogurt.During reading:1.    By cell count, are you mostly human or bacterial? How about by mass?2.    What...
    07:00 AM, May 22, 2015 Classroom Questions
  • Studying? Don’t answer that text!

    PITTSBURGH, Pa. — Cell phone use and texting are increasingly common, especially among teens. And that could be a problem. Texting affects learning and performing on tests, a new study finds. On average, students who responded to texts while working got lower scores. This trend held even for teens who felt they could multitask effectively.Many students think that multitasking has no effect on how...
    13:00 PM, May 21, 2015 Brain & Behavior
    Readability Score: 8.0
  • Pesticides offer bees a risky allure

    Bees flit from flower to flower dining on nectar. Sometimes that nectar may contain traces of widely used pesticides. Yet the bees are unlikely to know which nectar is tainted. Indeed, they can’t taste these pesticides, a new study finds. However, the pesticides are similar to nicotine. This can encourage the bees to come back for more. And especially troubing: A second new study suggests the...
    07:01 AM, May 19, 2015 Animals
    Readability Score: 6.8
  • Eureka! Lab

    Teen finds more graphic heroines are ‘super’

    PITTSBURGH, Pa. — Many people like to use comics to discuss science. All over the Internet, you can find articles explaining the physics behind Thor’s hammer or what real-life X-Men might be like. But one teen scientist decided to apply science to comics. Her research probed how women are portrayed in comics. And over time, women in the Marvel comic books are more often portrayed as equal to men...
    07:00 AM, May 19, 2015
    Readability Score: 7.1
  • Eureka! Lab

    Scientists Say: MRI

    MRI (Magnetic resonance imaging)  (noun, “Mag-NEH-tik rez-uh-nunce IM-udj-ing”)This is a technique scientists use to create very detailed maps of the body.Your body is full of water. Each molecule of it is made of one oxygen atom and two hydrogen atoms. Hydrogen has just one proton, and that proton has a positive charge.   MRI applies a strong magnetic field to the protons of those hydrogen atoms...
    07:00 AM, May 18, 2015
    Readability Score: 7.3

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