Agriculture
Cleaning Up Fish Farms
Where Have All the Bees Gone?
Watching out for vultures
Amphibians
Newts
Bullfrogs
Tree Frogs
Animals
Sleep Affects a Bird's Singing
A Wild Ferret Rise
Copybees
Behavior
Body clocks
The Smell of Trust
Meet your mysterious relative
Birds
Macaws
Cardinals
Pigeons
Chemistry and Materials
Earth-Friendly Fabrics
Cooking Up Superhard Diamonds
Lighting goes digital
Computers
Troubles with Hubble
A New Look at Saturn's rings
Toxic Dirt + Avian Flu = Science Fair Success
Dinosaurs and Fossils
A Big, Weird Dino
Meet the new dinos
Big Fish in Ancient Waters
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
Earth Rocks On
Ancient Heights
Environment
Sea Otters, Kelp, and Killer Whales
Forests as a Tsunami Shield
The Birds are Falling
Finding the Past
A Long Haul
Watching deep-space fireworks
Untangling Human Origins
Fish
Parrotfish
Carp
Sting Ray
Food and Nutrition
The Essence of Celery
Building a Food Pyramid
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Capitalization Rules
Subject and Verb Agreement
Who vs. That vs. Which
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
Tarrant High overcoming the odds
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exam Preparation
GSAT Scholarship
GSAT Mathematics
Losing with Heads or Tails
A Sweet Advance in Candy Packing
Monkeys Count
Human Body
Spit Power
Cell Phone Tattlers
Attacking Asthma
Invertebrates
Fleas
Bedbugs
Clams
Mammals
Humans
Walrus
Black Bear
Parents
What Not to Say to Emerging Readers
Choosing a Preschool: What to Consider
Expert report highlights the importance to parents of reading to children!
Physics
The Mirror Universe of Antimatter
Black Hole Journey
Electric Backpack
Plants
Fast-flying fungal spores
Pumping Up Poison Ivy
Nature's Alphabet
Reptiles
Snakes
Pythons
Sea Turtles
Space and Astronomy
Witnessing a Rare Venus Eclipse
Older Stars, New Age for the Universe
Chaos Among the Planets
Technology and Engineering
Dancing with Robots
Smart Windows
A Clean Getaway
The Parts of Speech
Countable and Uncountable Nouns
Problems with Prepositions
What is a Verb?
Transportation
Robots on the Road, Again
Ready, unplug, drive
Charged cars that would charge
Weather
Science loses out when ice caps melt
Arctic Melt
A Change in Climate
Add your Article

Life trapped under a glacier

It may not be a tourist hot spot, but Blood Falls is very interesting to scientists who study living creatures. A geomicrobiologist — someone who studies how tiny organisms affect or use minerals — recently studied the rusty water and came up with some surprising results. The water that feeds Blood Falls probably comes from a salty underground lake. It’s home to microbes that surprisingly don’t need oxygen to survive. Microbes are tiny organisms, usually invisible to the naked eye. The microbes found in Blood Falls are similar to other microbes that live in the ocean. “This briny pond is a unique sort of time capsule,” says Jill Mikucki, the Dartmouth University geomicrobiologist who led the study of the water seeping from Blood Falls. “I don’t know of any other environment quite like this on earth.” When she and her team studied the water, they found no oxygen but lots of dissolved iron. They suspect that the underwater reservoir formed when a giant glacier, now 1,300 feet thick, moved over the salty lake at least 1.5 million years ago. This trapped the water and everything in it in an oxygen-free, or anoxic, environment. Unlike human beings and most other forms of life, the microbes from Blood Falls don’t need oxygen to live. Instead, they are able to exist using the iron and sulfates, chemical salts also found in the water. The microbes transfer particles called electrons from the sulfates to the iron. The microbes at Blood Falls show that life can exist in even the harshest environments. In addition to giving us more information about our own planet, the study of these “extremophiles” may be useful in other scientific areas — like the search for life on other planets! If scientists find organisms on Earth that live on sulfur and iron, instead of oxygen, researchers might gain a better idea of where to look for life elsewhere in the universe. Power words: (Yahoo! Kids Dictionary and WordNet) microbe: A tiny life form; a microorganism, especially a bacterium that causes disease. iron: A silvery-white, magnetic, metallic element occurring abundantly in combined forms. Used in a wide range of important structural materials. sulfate: A chemical compound made from sulfur. anoxic: A severe lack of oxygen

Life trapped under a glacier
Life trapped under a glacier








Designed and Powered by HBJamaica.com™