Agriculture
Silk’s superpowers
Protecting Cows—and People—from a Deadly Disease
Fast-flying fungal spores
Amphibians
Toads
Poison Dart Frogs
Newts
Animals
Pothole Repair, Insect-style
Red Apes in Danger
Helping the Cause of Macaws
Behavior
Night of the living ants
Flower family knows its roots
Diving, Rolling, and Floating, Alligator Style
Birds
Lovebirds
Songbirds
Quails
Chemistry and Materials
A Diamond Polish for Ancient Tools
Earth from the inside out
Lighting goes digital
Computers
Secrets of an Ancient Computer
Middle school science adventures
Games with a Purpose
Dinosaurs and Fossils
Digging for Ancient DNA
Fossil Fly from Antarctica
The Paleontologist and the Three Dinosaurs
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
Surf Watch
Unnatural Disasters
Wave of Destruction
Environment
Whale Watch
Snow Traps
Fishing for Fun Takes Toll
Finding the Past
Early Maya Writing
Watching deep-space fireworks
Digging Up Stone Age Art
Fish
Skates
A Jellyfish's Blurry View
Mako Sharks
Food and Nutrition
Strong Bones for Life
Building a Food Pyramid
Packing Fat
GSAT English Rules
Order of Adjectives
Who vs. Whom
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
GSAT stars reap scholarship glory
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Tarrant High overcoming the odds
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
Results of GSAT are in schools this week
GSAT Mathematics
Monkeys Count
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
How to Slice a Cake Fairly
Human Body
Cell Phone Tattlers
Heavy Sleep
Hear, Hear
Invertebrates
Wasps
Giant Squid
Octopuses
Mammals
Golden Retrievers
Miscellaneous Mammals
Guinea Pigs
Parents
Raise a Lifelong Reader by Reading Aloud
How children learn
Choosing a Preschool: What to Consider
Physics
Powering Ball Lightning
Dreams of Floating in Space
The Pressure of Scuba Diving
Plants
Sweet, Sticky Science
Assembling the Tree of Life
A Change in Leaf Color
Reptiles
Komodo Dragons
Caimans
Rattlesnakes
Space and Astronomy
Galaxies Divide Sharply Along Color Lines
Unveiling Titan
Melting Snow on Mars
Technology and Engineering
A Micro-Dose of Your Own Medicine
A Satellite of Your Own
Algae Motors
The Parts of Speech
What is a Verb?
What is a Preposition?
Pronouns
Transportation
Tinkering With the Basic Bike
How to Fly Like a Bat
Middle school science adventures
Weather
The Best Defense Is a Good Snow Fence
Recipe for a Hurricane
In Antarctica watch the heat (and your step)
Add your Article

Don't Eat That Sandwich!

Oops! In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it's still OK to eat? If you're like most people, you eat it. Maybe you follow the "5-second rule," which claims foods are safe to eat if you pick them up within 5 seconds of dropping them. But you might want to think again. Scientists now say that 5 seconds are all it takes for foods to become contaminated with enough bacteria to make you sick. Bacteria are single-celled organisms that can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If we eat foods on which these bacteria are growing, we can become sick. Common symptoms include vomiting and diarrhea. One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Earlier this year, 370 people became sick after eating peanut butter that had been contaminated with Salmonella at the manufacturing plant. Salmonella are often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly. Being a good housekeeper is a second tip for preventing infection. If household surfaces aren't washed thoroughly, they can support Salmonella for weeks. But how long does it take these bacteria to attach to food? To answer that question, a team of scientists at Clemson University in South Carolina decided to test the 5-second rule, using sandwich ingredients. First, they placed a known amount of Salmonella cells on three surfaces: wood, tile, and carpet. They placed a slice of bread and a slice of bologna on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and bologna picked up enough bacteria to make you sick. "Someone making a sandwich might follow someone who, a day before, used that surface to cut meat or another raw food. It might not look contaminated, but could have bacteria that would be harmful," said Paul Dawson, the food scientist who led the study. So, forget the 5-second rule. If your toast lands on the floor, toss it out. Stick a fresh slice of bread in the toaster. And this time, be careful not to drop it!—Jennifer Cutraro

Don't Eat That Sandwich!
Don't Eat That Sandwich!








Designed and Powered by HBJamaica.com™