Agriculture
Watering the Air
Middle school science adventures
Where Have All the Bees Gone?
Amphibians
Salamanders and Newts
Frogs and Toads
Salamanders
Animals
Polar Bears in Trouble
No Fair: Monkey Sees, Doesn't
How to Fly Like a Bat
Behavior
Brainy bees know two from three
Training Your Brain to Feel Less Pain
Bringing fish back up to size
Birds
Ibises
Cassowaries
Emus
Chemistry and Materials
Flytrap Machine
Mother-of-Pearl on Ice
Nanomagnets Corral Oil
Computers
Hubble trouble doubled
Middle school science adventures
Troubles with Hubble
Dinosaurs and Fossils
Digging for Ancient DNA
The Paleontologist and the Three Dinosaurs
Hall of Dinos
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
Arctic Algae Show Climate Change
Island of Hope
A Great Quake Coming?
Environment
Blooming Jellies
Inspired by Nature
Forests as a Tsunami Shield
Finding the Past
A Human Migration Fueled by Dung?
A Volcano's Deadly Ash
If Only Bones Could Speak
Fish
Pygmy Sharks
Sharks
Flounder
Food and Nutrition
Chocolate Rules
Yummy bugs
Recipe for Health
GSAT English Rules
Order of Adjectives
Adjectives and Adverbs
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
GSAT Exam Preparation
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
It's a Math World for Animals
Deep-space dancers
Math Naturals
Human Body
Workouts: Does Stretching Help?
Foul Play?
Walking to Exercise the Brain
Invertebrates
Crabs
Flies
Mussels
Mammals
Tigers
Manxes
Mongooses
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Physics
Spin, Splat, and Scramble
Speedy stars
Invisibility Ring
Plants
Making the most of a meal
Cactus Goo for Clean Water
Plants Travel Wind Highways
Reptiles
Anacondas
Gila Monsters
Crocodilians
Space and Astronomy
Older Stars, New Age for the Universe
Burst Busters
Asteroid Lost and Found
Technology and Engineering
Space Umbrellas to Shield Earth
Sugar Power for Cell Phones
Toy Challenge
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
What is a Noun
Transportation
Troubles with Hubble
Seen on the Science Fair Scene
Charged cars that would charge
Weather
Polar Ice Feels the Heat
Catching Some Rays
Antarctica warms, which threatens penguins
Add your Article

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








Designed and Powered by HBJamaica.com™