Latest Science News for Students Articles
Updated: 3 hours 29 min ago
New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.
Classroom questions for Vision-ary high tech
More than half of all teens 15 and older get less than seven hours of sleep, according to a new study. That is two to three hours less than recommended. Overall, teens are sleeping less with each passing year, data show.
Alkali metals explode in water. Using high-speed cameras, scientists have finally figured out why.
A new electric keyboard locks out anybody but its owner. It’s not only self-cleaning but also powered by your fingertips.
New technologies allow medical experts to create remarkably detailed artificial faces. They can help restore the appearance — and the confidence and self-esteem — of patients who have suffered a disfiguring injury or disease.
When added to brain tissue, a chemical like one found in baby diapers expands. And it expands that brain tissue too, giving scientists a better view of how its cells connect.
Beyond the quest for trim waistlines and cavity-free teeth, girls have another reason to shun sodas and other sweetened drinks. These beverages may help launch the body’s menstrual cycles at an earlier age.
Broadcom MASTERS is the premier middle school science and engineering competition. Several 2014 finalists showed a flair for biomedicine. These young researchers tackled everything from diagnosing cancer early to alerting drowsy drivers before they fall asleep at the wheel.
Tiny chemical droplets in a liquid sandwiched between panes of glass turn cloudy when they warm up. This will block some sunlight and potentially save on air conditioning bills.
The blood-brain barrier gets leakier with age. That breakdown could contribute to memory problems.
Newly analyzed fossils suggest snakes lived at the same time as the golden age of dinosaurs. These early snakes appear to have had flexible skulls and likely also had four small limbs.
In March 2014, scientists claimed to have found the first echoes of the Big Bang — ripples in the very fabric of space. A new analysis shows the experts were mistaken. Dust appears to explain the confusion.
Ancients used to ‘see’ the outline of animals and other well-known things as constellations in the night sky. Now astronomers have done much the same thing. But they’ve spotted a more distant — if totally modern — shape: a smiley face!
Reading on an iPad in the evening can make it harder to fall asleep — and harder to wake up the next morning, a new study finds. The light from its screen tinkers with the body’s clock. And that could risk harming your health.
Cameras spotted orangutans walking down logging roads to get around. That may be a good sign that they can adapt to changes in their woodsy environment.
The United States is experiencing an outbreak of measles. A traveler likely brought in the virus from abroad, which is now spreading. Most of those infected were never vaccinated and could now face serious health risks.
Many people think that the measles vaccine wiped out the disease — at least in the United States. It hasn’t. And people who were never vaccinated face the primary risk of getting this very serious disease
Hellbenders already face threats such as habitat loss, pollution and disease. But climate change could make matters worse. And the problems facing hellbenders could spell trouble for more than just these giant amphibians.
SCIENCEBefore reading:1. How is an amphibian different from a fish or a reptile? Name three kinds of amphibians.2. Why is clean water necessary for animals and for people?During reading:1. What is hellbender “snot,” and how does it help a hellbender?2. What happens to a hellbender during its metamorphosis?3. How many subspecies of hellbender exist? Give their names and where they can be found.4. A pair of hellbenders can produce hundreds of larvae. Why doesn’t that result in hundreds of adult hellbenders?5. Why is silt and sediment washing into waterways where hellbenders live?6. Name three threats that hellbenders face.7. What are hellbender head-start programs, and how do they work?8. Why are researchers careful to not release too many sibling hellbenders into the same area?