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Shih Tzus - Shih Tzus
Shih Tzus
The Shih Tzu or Shih Tsu is a breed of dog originating in Tibet. The spelling "Shih Tzu", most commonly used for the breed, is according to the Wade-Giles system of romanization. Read More
Snow Traps
Erica David was 11 years old when she discovered the scientific wonders of snow. Now, when even the biggest blizzards strike her area, she'd rather be out measuring wind gusts than sipping cocoa by a fire. Read More
How children learn
Your child is an individual and different from all others. The way your child learns best depends on many factors: age; learning style, personality. Read the notes below, and think about your child. This will help you to choose activities and method Read More
The memory of a material
Nafion is a useful material that has been around since the 1960s, but don’t be surprised if you’ve never heard of it. It was first made by a chemist at DuPont, a company that makes chemicals, and it is a common ingredient in fuel cells. (Fuel cells, which Read More
Look into My Eyes
If you look deep into a friend's eyes, you may imagine that you can see his or her thoughts and dreams. But more likely, you'll simply see an image of yourself—and whatever lies behind you. Our eyeballs are like small, round mirrors. Read More
Chinchillas
Chinchillas are small rodents native to the Andes mountains in South America and belonging to the family Chinchillidae. In Chinese, they are called lóng māo, which literally means "dragon-cat". Read More
Searching for Alien Life
On a clear night, go outside, lie on your back, and stare into the sky. As you gaze at the multitude of stars, you might wonder: Is there life on other planets out there? Read More
These gems make their own way
Tom Chatham’s desk is littered with gemstones. Rubies, sapphires, and emeralds are scattered like pieces of candy. Some of them are as big as golf balls. We’re sitting on the seventh floor of a building in downtown San Francisco, upstairs from the famous Read More
New Monkey Business
A new kind of monkey is giving scientists a lot to think about. Two groups of researchers independently discovered the rare creature in different forests in Tanzania last year (see "New Mammals"). They classified the shy animal as a mangabey, a type of p Read More
It's a Math World for Animals
From monkeys who know the difference between 2 and 3 to dogs who can calculate the fastest route, animal mathematicians are teaching scientists a few things about numbers. Read More
Meet the new dinos
The last dinosaurs died about 65 million years ago, long before humans started walking around. Scientists can still learn new things about these ancient animals though, thanks to the fossils they left behind. Paleontologists are scientists who study dinos Read More
Spit Power
Saliva actually deserves a lot of respect. To start with, it protects your teeth and allows you to talk and eat. Police investigators use the results of saliva tests to solve crimes and nab drunk drivers. Read More
Math and our number sense: PassGSAT.com
Not all math skills are learned in the classroom. Some of them come naturally. Consider the split-second calculations you make when you estimate the number of empty seats on the school bus or gauge the number of cookies in a cookie jar. Read More
Narwhals
The Narwhal (Monodon monoceros) is an Arctic species of cetacean with a body similar to that of a Beluga whale and Irrawaddy dolphin. It is rare creature found south of latitude 70°N. It is one of two species of whale in the Monodontidae family. Read More
Lampreys
A lamprey is a jawless fish with a toothed, funnel-like sucking mouth, with which most species bore into fish flesh to suck their blood. In zoology, lampreys are not considered to be true fish because of their different morphology and physiology. Read More
Speedy Gene Gives Runners a Boost
No matter how hard you push yourself, you probably still can’t run as fast as some of your friends. Even with tons of training, most of us could never be Olympians. Read More
The nerve of one animal
A vicious cancer has wiped out 70 percent of the world’s population of wild Tasmanian devils, and if nothing changes, these animals might be extinct in the wild in 30 to 50 years. But there may be hope: In a new study, scientists have identified the cance Read More
Young Ants in the Kitchen
Holiday dinners can be a major affair. Someone has to cook the turkey, bake the potatoes, chop and steam the vegetables, stir the soup, mix ingredients for the pie, and more. Then, the chef has to sit down and wait until everyone is served before he or sh Read More
Wildcats
The wildcat Felis silvestris, sometimes "wildcat" or "wild-cat" especially when distinguishing from other wild species of felines, is a small predator native to Europe, the western part of Asia, and Africa. Read More
Fighting Off Micro-Invader Epidemics
Every year when school starts, you hear it in the classroom: a cough here, a snuffle there. Some weeks, more than half your class may be sneezing or hacking away. Colds spread quickly, passing from person to person. Read More
A Big Discovery about Little People
Long ago, many species of humanlike creatures shared space on Earth. These different types of humans walked upright and had intelligent minds. At some point, however, all but one of those species went extinct. Read More
What is a Noun By Heather MacFadyen
A noun is a word used to name a person, animal, place, thing, and abstract idea. Nouns are usually the first words which small children learn. The highlighted words in the following sentences are all nouns: Read More
An Ancient Feathered Biplane
When the Wright Brothers lifted off at Kitty Hawk in 1903, they flew a plane with two sets of wings, one below the other. Their feat went down in history as the first successful flight by a heavier-than-air aircraft. New evidence suggests that dinosaurs Read More
Weekend Weather Really Is Different
Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outside. Then, as soon as the weekend comes, the sky turns gray. There's rain in the forecast. Read More
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Scottish Folds
The Scottish Fold is a breed of cat with a natural mutation to its ears. The ear cartilage contains a fold so the ears bend forward and down toward the front of their head. The original Scottish Fold ... Read More
The Smell of Trust
Let's say you find yourself with a pile of extra money. You meet a banker who tells you to hand it all over to him. He'll invest it and make you rich. "Trust me," he says. Do you? Whether o... Read More
Beyond Bar Codes
In the future, your refrigerator might alert you when the milk has gone sour. At the grocery store, cashiers won't need to scan bar codes because products will provide the data on their own. ... Read More
Tossing Out a Black Hole Life Preserver
It's a good thing we can't get anywhere near a black hole. If it were possible, the consequences would not be pretty. A black hole is a point in space where gravity is so intense that not even light c... Read More
Pronouns
Pronouns are words that take the place of nouns. Imagine telling a story about Peter. Your essay may be full of sentences beginning with Peter. In every sentence there will be a Peter. For this purpo... Read More
Setting a Prime Number Record
What's the biggest number you can think of? A billion? A trillion? A googol? (That's 1 followed by 100 zeroes.) Whatever number you come up with, there's always a larger one.... Read More
Snowflakes and Avalanches
High on a mountainside, ski patroller Karl Birkeland dug a pit into a drift to check the snow's stability. He declared the slope safe for skiing. The danger of an avalanche appeared low. It was 1985,... Read More
Hungry bug seeks hot meal
Superman may have something in common with one kind of seed-eating bug. Both use special powers to zero in on a warm target. In the bug’s case, the target is dinner. For humans, finding some Oreos or... Read More
Pugs
A Pug is a toy dog breed of dog with a wrinkly face, medium-small body. The word "Pug" may have derived from the Latin pugnus (fist). Or, in nod to the breeds sometimes mischievous nature, f... Read More
Caimans
Although the Caiman has not been studied in-depth, it has been discovered that their mating cycles are linked to the rainfall cycles and the river levels in order to increase their offspring's chances... Read More
Wired for Math
Quick. What's 845 + 289? Sorry, time's up. Few people can add numbers in their heads that quickly. If someone showed you a set of 845 dots next to a set of 289 dots, however, you'd probably be able t... Read More
Awake at Night
The less sleep I get, the unhappier I become. When I'm really tired, I have trouble concentrating. I can't get any work done. I get cranky and irritable, and everything starts to annoy me. I know lot... Read More
A Big, Weird Dino
A new dinosaur find has forced scientists to rethink their understanding of these ancient creatures. The feathered dino, which belongs to a new genus called Gigantoraptor, was surprisingly huge and h... Read More
Screaming for Ice Cream
Summer, where I'm from, is a wonderful thing. When the weather warms up, people head outdoors. Days are long and hot—perfect conditions for canoeing, biking, and having picnics by the lake. Best of al... Read More
Return of the Lost Limbs
When people lose legs after accidents or illnesses, emergency care and artificial limbs often allow them to walk again. But salamanders and newts in the same situation don't need doctors or artificial... Read More