Agriculture
Seeds of the Future
Silk’s superpowers
Hungry bug seeks hot meal
Amphibians
Tree Frogs
Frogs and Toads
Poison Dart Frogs
Animals
How to Silence a Cricket
Red Apes in Danger
Odor-Chasing Penguins
Behavior
Monkeys in the Mirror
Babies Prove Sound Learners
Reading Body Language
Birds
Parrots
Ibises
Roadrunners
Chemistry and Materials
Putting the Squeeze on Toothpaste
Atom Hauler
Hitting the redo button on evolution
Computers
The science of disappearing
The Shape of the Internet
A Light Delay
Dinosaurs and Fossils
Three strikes wiped out woolly mammoths
A Big, Weird Dino
Digging Dinos
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2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Arctic Algae Show Climate Change
Plastic-munching microbes
A Volcano Wakes Up
Environment
Where rivers run uphill
Indoor ozone stopper
Giant snakes invading North America
Finding the Past
Little People Cause Big Surprise
A Long Trek to Asia
Of Lice and Old Clothes
Fish
Mako Sharks
Skates and Rays
Eels
Food and Nutrition
In Search of the Perfect French Fry
Packing Fat
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Adjectives and Adverbs
Order of Adjectives
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Ministry of Education Announces 82 GSAT Scholarships for 2010
Preparing for the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
GSAT Scholarship
Results of GSAT are in schools this week
GSAT Mathematics
Prime Time for Cicadas
How to Slice a Cake Fairly
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Human Body
Nature's Medicines
Sea Kids See Clearly Underwater
Disease Detectives
Invertebrates
Beetles
Millipedes
Camel Spiders
Mammals
Chipmunks
Beavers
Bison
Parents
How children learn
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Physics
Extra Strings for New Sounds
Powering Ball Lightning
Electric Backpack
Plants
Bright Blooms That Glow
Fastest Plant on Earth
White fuzzy mold not as friendly as it looks
Reptiles
Pythons
Anacondas
Asp
Space and Astronomy
Baby Star
A Dusty Birthplace
A Darker, Warmer Red Planet
Technology and Engineering
Beyond Bar Codes
Model Plane Flies the Atlantic
Machine Copy
The Parts of Speech
Pronouns
Problems with Prepositions
Countable and Uncountable Nouns
Transportation
How to Fly Like a Bat
Ready, unplug, drive
Are Propellers Fin-ished?
Weather
Earth's Poles in Peril
Science loses out when ice caps melt
Warmest Year on Record
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Quick Quake Alerts

The ground shakes. Dishes fall off shelves. Houses collapse. Cars topple over bridges. Every year, earthquakes destroy homes and schools, and they kill many thousands of people around the world. Even scarier, it's impossible to know exactly when and where the next one will strike. A system of detectors in Los Angeles might be able to warn that an earthquake is coming, according to a new analysis. Even if the alarm comes only a few seconds before the quake, the system could save lives. Earthquakes cause a few different kinds of underground vibrations. One kind are called P waves, which travel quickly through Earth and rarely cause damage. The S waves that follow are more dangerous. They travel half as fast and shake the ground from side to side. Richard M. Allen of the University of Wisconsin-Madison and his colleagues analyzed ground motions from 53 fairly strong earthquakes that have struck Los Angeles since 1995. By looking at the first few seconds of a quake’s P wave, they found they could predict how big the oncoming S wave would be. Using detectors already in place throughout Los Angeles could give residents at least a few seconds warning that a quake is coming, Allen suggests. That wouldn’t be enough time to run away. But a siren or Internet message could save lives by giving people time to shut off power and stop trains. Kids in school could dive under their desks. The system wouldn’t make earthquakes any less scary, but at least you’d know what was coming!—E. Sohn

Quick Quake Alerts
Quick Quake Alerts








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