Earth-Friendly Fabrics
Got Milk? How?
Chicken Eggs as Drug Factories
Tree Frogs
Salamanders and Newts
Ultrasonic Frogs Raise the Pitch
Moss Echoes of Hunting
New Elephant-Shrew
Lost Sight, Found Sound
Listening to Birdsong
Memory by Hypnosis
Flightless Birds
Chemistry and Materials
Getting the dirt on carbon
Earth from the inside out
Cooking Up Superhard Diamonds
It's a Small E-mail World After All
Hitting the redo button on evolution
Getting in Touch with Touch
Dinosaurs and Fossils
Digging for Ancient DNA
Early Birds Ready to Rumble
An Ancient Spider's Web
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Greener Diet
Hints of Life in Ancient Lava
Coral Islands Survive a Tsunami
Flu river
Acid Snails
Snow Traps
Finding the Past
Digging Up Stone Age Art
Ancient Art on the Rocks
Early Maya Writing
White Tip Sharks
Electric Catfish
A Jellyfish's Blurry View
Food and Nutrition
The mercury in that tuna
Making good, brown fat
A Taste for Cheese
GSAT English Rules
Order of Adjectives
Who vs. Whom
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
GSAT Mathematics
How to Slice a Cake Fairly
Math and our number sense:
A Sweet Advance in Candy Packing
Human Body
Nature's Medicines
A New Touch
Football Scrapes and Nasty Infections
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Invisibility Ring
The Pressure of Scuba Diving
Spin, Splat, and Scramble
Tracking the Sun Improves Plant Pollen
Plants Travel Wind Highways
Fastest Plant on Earth
Space and Astronomy
Ringing Saturn
A Darker, Warmer Red Planet
World of Three Suns
Technology and Engineering
Space Umbrellas to Shield Earth
Machine Copy
Algae Motors
The Parts of Speech
Adjectives and Adverbs
What is a Noun
Seen on the Science Fair Scene
Where rivers run uphill
Ready, unplug, drive
Science loses out when ice caps melt
Arctic Melt
A Change in Climate
Add your Article

The Pacific Ocean's Bald Spot

In at least one place, the land at the bottom of the ocean is nearly naked, scientists have discovered. The rocks that form Earth's surface beneath the oceans are usually covered with a thick layer made up of sand or dirt and the skeletons of tiny ocean creatures called plankton. Plankton are microscopic plants that spend their lives drifting in the ocean. When they die, their skeletons sink to the seafloor. Some parts of the oceans contain abundant plankton, and their skeletons can eventually form a very thick layer on the ocean floor. But one patch of ocean floor is missing this layer entirely. The patch, called the South Pacific Bare Zone, is about the size of the Mediterranean Sea. It's located thousands of miles east of New Zealand. Scientists found the bare zone using equipment that can detect different kinds of rocks and soils. The measurements showed that there was very little sediment, or accumulated particles, in this region. Scientists were surprised by their discovery. But they came up with several reasons why this particular area would lack sediment. The waters in this part of the ocean have low levels of nutrients, so there's little food for plankton. As a result, there aren't large quantities of plankton to die, fall to the bottom, and build up into a thick layer of sediment. Any skeletons that do reach the bottom tend to dissolve. The bare zone is also far from any continents, which are a big source of windblown dust and other particles that drop into the sea. And it's far from any major ocean currents, so Antarctic icebergs carrying material scraped from that continent don't pass over the bare zone and drop sediment. Researchers are excited by the discovery of the Pacific's bare zone because this may be the one place on Earth where they can directly study seafloor materials that are normally hidden by sediment.óC. Gramling

The Pacific Ocean's Bald Spot
The Pacific Ocean's Bald Spot

Designed and Powered by™