Silk’s superpowers
Earth-Friendly Fabrics
Seeds of the Future
Poison Dart Frogs
Frogs and Toads
Clone Wars
Cannibal Crickets
Mating Slows Down Prairie Dogs
A brain-boosting video game
The Smell of Trust
Chimpanzee Hunting Tools
Chemistry and Materials
Putting the Squeeze on Toothpaste
Hair Detectives
A Light Delay
New eyes to scan the skies
Earth from the inside out
Graphene's superstrength
Dinosaurs and Fossils
An Ancient Feathered Biplane
Fingerprinting Fossils
Ancient Critter Caught Shedding Its Skin
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth Rocks On
What is groundwater
Life trapped under a glacier
Antarctica warms, which threatens penguins
Power of the Wind
The Oily Gulf
Finding the Past
A Human Migration Fueled by Dung?
Salt and Early Civilization
Big Woman of the Distant Past
Great White Shark
Food and Nutrition
Building a Food Pyramid
How Super Are Superfruits?
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Subject and Verb Agreement
Adjectives and Adverbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Ministry of Education Announces 82 GSAT Scholarships for 2010
Tarrant High overcoming the odds
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT Mathematics
Math and our number sense:
Secrets of an Ancient Computer
How to Slice a Cake Fairly
Human Body
Kids now getting 'adult' disease
A Sour Taste in Your Mouth
Walking to Exercise the Brain
Dust Mites
African Hyenas
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Project Music
IceCube Science
Electric Backpack
Seeds of the Future
Fungus Hunt
The algae invasion
Gila Monsters
Space and Astronomy
Burst Busters
Unveiling Titan
Return to Space
Technology and Engineering
Musclebots Take Some Steps
Shape Shifting
Reach for the Sky
The Parts of Speech
What is a Verb?
Countable and Uncountable Nouns
Where rivers run uphill
Tinkering With the Basic Bike
Seen on the Science Fair Scene
In Antarctica watch the heat (and your step)
Recipe for a Hurricane
Science loses out when ice caps melt
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Riding to Earth's Core

Ever wonder what you’d find if you could travel to the center of the earth? Someday, we might find out, says geophysicist David Stevenson of the California Institute of Technology. Stevenson has thought up a way to send a probe to Earth’s core. For now, his plan is mostly just a cool idea. Quite a few obstacles keep it from being practical. So far, the deepest anyone has drilled into the earth is 10 kilometers. The hard crust of continents probably goes down at least another 200 kilometers. Below that lies a gooey layer called the mantle, which surrounds a liquid outer core and a solid inner core. Both inner layers are made mostly of iron. Stevenson's idea is to blast a hole 300 meters deep and 10 centimeters wide. Into the hole, he would pour melted iron, which would flow downward and create enough pressure to push the crack to Earth's center. He estimates it would take the probe about a week to get there. Blasting a big enough crack would take about the same amount of energy as that contained in a basic hydrogen bomb. The biggest challenge would be building the probe. The center of the earth gets so hot and there is so much pressure that most metals would melt. Electronic equipment would fall apart. If scientists can ever find a way around those obstacles, they might get a new view of some of Earth's deepest secrets.—E. Sohn

Riding to Earth's Core
Riding to Earth's Core

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