Agriculture
Springing forward
Cleaning Up Fish Farms
Earth-Friendly Fabrics
Amphibians
Frogs and Toads
Salamanders
Poison Dart Frogs
Animals
Clone Wars
Return of the Lost Limbs
Firefly Delight
Behavior
Video Game Violence
Swine flu goes global
Double take
Birds
Finches
Carnivorous Birds
Cardinals
Chemistry and Materials
Popping to Perfection
The solar system's biggest junkyard
Cooking Up Superhard Diamonds
Computers
Middle school science adventures
Hitting the redo button on evolution
Hubble trouble doubled
Dinosaurs and Fossils
Ancient Critter Caught Shedding Its Skin
Meet the new dinos
Dino-bite!
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
A Volcano's Deadly Ash
Drilling Deep for Fuel
Weird, new ant
Environment
Indoor ozone stopper
Inspired by Nature
Forests as a Tsunami Shield
Finding the Past
Sahara Cemetery
Your inner Neandertal
Little People Cause Big Surprise
Fish
Lungfish
Pygmy Sharks
Hammerhead Sharks
Food and Nutrition
In Search of the Perfect French Fry
Chew for Health
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Who vs. Whom
Finding Subjects and Verbs
Who vs. That vs. Which
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
10 Common Mistakes When Preparing for the GSAT Math Test
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Scholarship
Access denied - Disabled boy aces GSAT
GSAT Mathematics
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
10 Common Mistakes When Preparing for the GSAT Math Test
Deep-space dancers
Human Body
Gut Germs to the Rescue
A Long Trek to Asia
Sea Kids See Clearly Underwater
Invertebrates
Dragonflies
Giant Squid
Fleas
Mammals
Seal
Goats
A Grim Future for Some Killer Whales
Parents
Expert report highlights the importance to parents of reading to children!
Choosing a Preschool: What to Consider
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Thinner Air, Less Splatter
Extra Strings for New Sounds
The Particle Zoo
Plants
Getting the dirt on carbon
Assembling the Tree of Life
White fuzzy mold not as friendly as it looks
Reptiles
Snakes
Turtles
Lizards
Space and Astronomy
A Dusty Birthplace
Dark Galaxy
Tossing Out a Black Hole Life Preserver
Technology and Engineering
Algae Motors
Machine Copy
Young Scientists Take Flight
The Parts of Speech
Pronouns
Countable and Uncountable Nouns
Adjectives and Adverbs
Transportation
Robots on the Road, Again
How to Fly Like a Bat
Seen on the Science Fair Scene
Weather
Recipe for a Hurricane
The solar system's biggest junkyard
The Best Defense Is a Good Snow Fence
Add your Article

Weekend Weather Really Is Different

Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outside. Then, as soon as the weekend comes, the sky turns gray. There's rain in the forecast. In some ways, you may be right. Weekend weather differs from weekday weather in certain places, say researchers who studied more than 40 years of weather data from around the world. They focused on temperature differences between daytime highs and nighttime lows. This difference measurement is called the diurnal temperature range, or DTR. Part of the study involved 660 weather stations in the continental United States. At more than 230 of these sites, the average DTR for Saturday, Sunday, and Monday was different from the average DTR for Wednesday, Thursday, and Friday, the researchers found. The difference was small—only several tenths of a Celsius degree—but the pattern was striking enough to make the scientists take notice. In the southwestern U.S., temperature ranges were typically broader on weekends. In the Midwest, weekdays saw larger daily temperature variations. This sort of weekly rise and fall doesn't line up with any natural cycles, the researchers say. Instead, they blame human activities, possibly air pollution from those activities, for these weather effects. For example, tiny particles in the air could affect the amount of cloud cover, which would in turn affect daily temperatures. So, tiny windborne particles from California, generated on weekdays, might first affect weather close to home in the southwest, then later influence midwestern weather. It looks like your weekend weather has a lot do with which way the wind blows and where it comes from.—E. Sohn

Weekend Weather Really Is Different
Weekend Weather Really Is Different








Designed and Powered by HBJamaica.com™