Alligators and crocodiles may look alike, but they are different in many ways. Both species are reptiles, and they are closely related, which is why they look so much alike. But there are a few key differences. Alligators have wide, U-shaped snouts, while crocodiles are narrower and pointier. Speaking of pointy, you can see some of a crocodile’s sharp teeth when their jaw is closed, but an alligator’s teeth are all hidden until it opens its mouth. Finally, crocodiles live in salt water, while alligators are usually found in fresh water.
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For many holidays, kids around the United States receive
and eat candy. But is candy making you sick? There is a lot of research on the effects of sugar on health. Not only does sugar have a reputation for making kids hyper, but too much of it can also affect your physical health. Sugar can lead to weight gain, blood sugar problems, and even a greater risk for heart disease. The good news is that eating a balanced diet means that a little sugar won’t hurt you too much. Just don’t overdo it!
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Achoo! As fall turns to winter, doctors’ offices fill with
sneezing patients. Is it a cold or allergies? A cold is caused by a virus that enters the body. The virus can spread when people sneeze or cough. It causes a sore throat, runny nose, cough, congestion, and sneezing. Allergies can cause similar symptoms, but they are caused by the body’s immune system. A body reacts to an allergen that it encounters in food or the environment. Colds last a short time, but allergies often last a lifetime.
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Lightning is a giant spark of electricity in the sky.
Lightning is caused when pieces of ice in storm clouds start moving very quickly. This movement brings about electricity, a form of energy, in the clouds. When the electricity becomes very strong, lightning flashes, often in lines called bolts. Lightning bolts are very hot and can
be up to 10 miles long! When a bolt comes down to strike the earth, it can burn whatever it touches.
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A virus is something that infects cells and makes you sick.
First, a virus enters the body. Then, it inserts its genetic material into a cell in the body. When the cell reproduces, the virus reproduces with it. Then, this makes a person sick, sometimes with a cold, or stomachache,
or other issue. The body’s immune system then fights the virus until it is eliminated from the body.
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The frog population in South America is in trouble. Eight types of frogs have become extinct in the last one hundred years. This is because their habitat is being destroyed from the destruction of the rainforest. Loggers cut down trees to allow farms and roads to be built, and this disrupts the
ecosystem. This isn’t just a problem because frogs are disappearing; the decrease in frogs shows that the environment isn’t healthy. Frog health is closely linked to environmental health, and when frogs disappear, it’s a clear
sign that something is wrong with the environment as a whole.
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The Olympic Games happen every four years. The first
Olympics were held more than 2,700 years ago in Greece. When they first began, only men could compete, but today, men and women can both compete. While the first games were in in Olympia, Greece, today they are held all over the world. Another thing that has changed over
time is the price. While winners once won an olive-leaf crown, today winners earn a gold (first place), silver (second place), or bronze (third place) medal.
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If you’ve ever paid attention while riding in a car,
you’ve noticed there are many different types of cars. Compact cars are small and don’t hold too many people. Minivans are larger and can hold bigger families. Trucks are good for transporting items, while sports cars are low to the ground and fast. Cars take on all different shapes and sizes because they have different functions and uses.
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A major cause of automobile accidents is texting and
driving. And it’s not just texting that’s the problem, all forms of cell phone use while driving are dangerous. Distracted driving is as dangerous as driving while under the influence of drugs and alcohol. It causes a driver’s reaction time to slow down, which makes accidents more likely. So the next time you witness someone using their cell phone while driving, kindly ask them to put it down!
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Italy is a small country in Europe. Italy has some unique
features. Italy’s climate is temperate. It has snowy and cold winters in the northern mountains, rainy winters in the south, and hot, dry summers. Italy is surrounded by water on three sides. This is called a peninsula. In Italy, the language is Italian. Some people also speak French. Italy’s capital is Rome.
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