Agriculture
Vitamin D-licious Mushrooms
Keeping Bugs Away from Food
Protecting Cows—and People—from a Deadly Disease
Amphibians
Poison Dart Frogs
Bullfrogs
Newts
Animals
Gliders in the Family
A Meal Plan for Birds
Not Slippery When Wet
Behavior
Mice sense each other's fear
Making light of sleep
Newly named fish crawls and hops
Birds
Chicken
Macaws
Swifts
Chemistry and Materials
Moon Crash, Splash
Smelly Traps for Lampreys
The metal detector in your mouth
Computers
Secrets of an Ancient Computer
Two monkeys see a more colorful world
Hubble trouble doubled
Dinosaurs and Fossils
Mammals in the Shadow of Dinosaurs
From Mammoth to Modern Elephant
Dino Takeout for Mammals
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Less Mixing Can Affect Lake's Ecosystem
In Antarctica watch the heat (and your step)
A Global Warming Flap
Environment
Animal CSI or from Science Lab to Crime Lab
Fishing for Fun Takes Toll
Sounds and Silence
Finding the Past
Big Woman of the Distant Past
Chicken of the Sea
Of Lice and Old Clothes
Fish
Catfish
A Grim Future for Some Killer Whales
Sting Ray
Food and Nutrition
A Taste for Cheese
Eat Out, Eat Smart
A Pepper Part that Burns Fat
GSAT English Rules
Adjectives and Adverbs
Problems with Prepositions
Capitalization Rules
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
2014 GSAT Results for Jamaican Kids
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
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GSAT Mathematics
It's a Math World for Animals
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Human Body
From Stem Cell to Any Cell
Don't Eat That Sandwich!
Electricity's Spark of Life
Invertebrates
Mollusks
Arachnids
Leeches
Mammals
Pugs
Beagles
Golden Retrievers
Parents
Choosing a Preschool: What to Consider
The Surprising Meaning and Benefits of Nursery Rhymes
Expert report highlights the importance to parents of reading to children!
Physics
Black Hole Journey
Dreams of Floating in Space
One ring around them all
Plants
Springing forward
Hungry bug seeks hot meal
Pumping Up Poison Ivy
Reptiles
Copperhead Snakes
Turtles
Cobras
Space and Astronomy
A Moon's Icy Spray
Killers from Outer Space
Catching a Comet's Tail
Technology and Engineering
Smart Windows
Model Plane Flies the Atlantic
Morphing a Wing to Save Fuel
The Parts of Speech
What is a Verb?
Adjectives and Adverbs
What is a Preposition?
Transportation
Flying the Hyper Skies
Troubles with Hubble
Revving Up Green Machines
Weather
A Dire Shortage of Water
Warmest Year on Record
In Antarctica watch the heat (and your step)
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Sun Flips Out to Flip-Flop

The sun is a strange and turbulent place. The scorching hot ball of gas may look smooth from a safe distance, but dark spots, violent explosions, and massive eruptions constantly come and go on its surface. Scientists have noticed that the sun gets especially stormy every 11 years or so—a period known as the solar cycle. At about the same time, our star's magnetic poles suddenly flip: North becomes south. South becomes north. Researchers at NASA's Goddard Space Flight Center in Greenbelt, Md., now think they're getting closer to understanding what causes the sudden switch in direction. Huge clouds of electrically charged particles called coronal mass ejections (CMEs) might have something to do with it, they say. Spit out by the sun from time to time, such clouds can weigh billions of tons. The researchers collected data from two, 11-year sun cycles. For both cycles, the researchers saw an increase in CMEs at the poles of the sun just before the magnetic switch happened. They think the clouds are blasted off the sun, carrying away old magnetic fields and preparing it for the switch. Why does it happen every 11 years or so? That's a question that no one has an answer for yet. Perhaps it's just long enough for the sun to be ready for something different!—E. Sohn

Sun Flips Out to Flip-Flop
Sun Flips Out to Flip-Flop








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