Agriculture
Keeping Bugs Away from Food
Protecting Cows—and People—from a Deadly Disease
Silk’s superpowers
Amphibians
Salamanders and Newts
Frogs and Toads
Bullfrogs
Animals
Glimpses of a Legendary Woodpecker
Feeding School for Meerkats
Ants on Stilts
Behavior
Contemplating thought
A Light Delay
Taking a Spill for Science
Birds
Turkeys
Owls
Tropical Birds
Chemistry and Materials
Earth-Friendly Fabrics
The Incredible Shrunken Kids
A Butterfly's Electric Glow
Computers
Lighting goes digital
A New Look at Saturn's rings
Supersonic Splash
Dinosaurs and Fossils
A Dino King's Ancestor
South America's sticky tar pits
A Rainforest Trapped in Amber
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Warmest Year on Record
Earth's Lowly Rumble
Easy Ways to Conserve Water
Environment
Nanosponges Soak Up Pollutants
Pollution Detective
The Birds are Falling
Finding the Past
An Ancient Childhood
Chicken of the Sea
Settling the Americas
Fish
Electric Ray
Sturgeons
Barracudas
Food and Nutrition
Sponges' secret weapon
Chocolate Rules
Food for Life
GSAT English Rules
Finding Subjects and Verbs
Whoever vs. Whomever
Capitalization Rules
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
Results of GSAT are in schools this week
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
42,000 students will sit for the GSAT Exam in two weeks
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Deep-space dancers
Math and our number sense: PassGSAT.com
Math is a real brain bender
Human Body
A New Touch
A Sour Taste in Your Mouth
Music in the Brain
Invertebrates
Dragonflies
Oysters
Invertebrates
Mammals
Skunks
Moles
Chimpanzees
Parents
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Powering Ball Lightning
Echoes of a Stretched Egg
Extra Strings for New Sounds
Plants
Assembling the Tree of Life
Nature's Alphabet
Getting the dirt on carbon
Reptiles
Copperhead Snakes
Turtles
Gila Monsters
Space and Astronomy
A Dead Star's Dusty Ring
Phantom Energy and the Big Rip
A Planet from the Early Universe
Technology and Engineering
Space Umbrellas to Shield Earth
Morphing a Wing to Save Fuel
Toy Challenge
The Parts of Speech
Problems with Prepositions
What is a Preposition?
Countable and Uncountable Nouns
Transportation
Reach for the Sky
How to Fly Like a Bat
Robots on a Rocky Road
Weather
The solar system's biggest junkyard
Recipe for a Hurricane
Arctic Melt
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City Trees Beat Country Trees

There are city people, and there are country people. Now, the same may be true for trees. A common type of tree grows twice as well in New York City as it does in rural places around the state, researchers report. An unexpected twist in pollution patterns appears to explain the trend. Cities may seem like an unlikely place for plant life to blossom. Car fumes, polluted water, and toxic metals in dirt are only a few of the obstacles to growth. That’s why ecologist Jillian Gregg’s results were somewhat surprising. She and her colleagues found that Eastern cottonwoods planted in the heart of New York City grew to be twice as massive as trees planted in small towns outside the city. The researchers were able to rule out genes, light conditions, rainfall, bugs, temperature, carbon dioxide levels, and soil type as causes. However, they noticed that one type of air pollution—the amount of ozone in air averaged over a 24-hour period—was actually worse in the country than in the city. Much of that ozone came from pollution blowing in from urban areas. Back in the city, though, other abundant air pollutants were clearing out the ozone by combining with it chemically and making it harmless. The study shows how much city pollution can hurt rural environments. And just like people, even trees suffer from the city’s bad breath.—E. Sohn

City Trees Beat Country Trees
City Trees Beat Country Trees








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