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category_outlined / 儿童与青少年
Click Science and Discovery Magazine for Preschoolers and Young ChildrenClick Science and Discovery Magazine for Preschoolers and Young Children

Click Science and Discovery Magazine for Preschoolers and Young Children

May/June 2019

Just right for inquisitive young children, each issue of CLICK is a journey of discovery about the world around them, one exciting topic at a time, sparking a lifelong love of reading and learning about nature, the sciences, and the arts. Grades 1-2

国家:
United States
语言:
English
出版商:
Cricket Media, Inc.
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9 期号

本期

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click & jane

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germ fighters

You can’t really punch germs. They’re too teeny. But they can cause big problems. Germs can make you really sick, and they are everywhere. So why aren’t you sick all the time? Your body is hard at work. It’s constantly fighting the bad germs. And, thank goodness, it usually wins! …

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don’t get sick . . .

Bad germs can’t make you sick if they can’t get inside your body. If they do get in—through your mouth or nose, for example—your body has ways to stop them before they make you sick. Your skin surrounds your body like a strong wall to keep the bad germs out. If you get a cut or scratch, your blood has sticky bits that clump together to stop the bleeding and close the opening. Then germs can’t get in. Your blood looks red because it contains red blood cells. But it also has white blood cells that kill germs. Your lips can seal your mouth up tight. Your eyelids and eyelashes block some germs. Tears can wash away others. Tiny hairs and sticky earwax trap germs and keep them from…

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. . . get better!

Even though your body is always on guard, sometimes bad germs do make you sick. It’s no fun feeling tired or achy or sneezy. But those yucky feelings tell you that your body is busy fighting germs. The more germs there are, the more slimy mucus your body makes to try to trap them. Some of the extra mucus drips from your runny nose. You sneeze to send germs (or anything else that tickles the inside of your nose) flying out of your nose and mouth. Sometimes you throw up to push germs and spoiled food out of your stomach. When you have a fever, your body temperature is higher than normal. The high heat kills many germs. It also tells your white blood cells to work harder. White…

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your sore throat

Sore throats happen for lots of reasons. Many go away on their own, but some need a doctor’s help to get better. How can you tell which one you have? If your throat is so sore that it hurts to swallow, or even to talk, and you have a fever, you might have strep throat. Especially if your sore throat lasts for a few days.Strep throat is caused by bacteria, a kind of germ. If you have strep, you need to visit a doctor. Not all sore throats are strep, so your doctor will check to see if you have it. The doctor will feel along your throat, under your chin. If it’s tender there, it’s because your lymph nodes are swollen. Lymph nodes help fight germs in…

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what's germ ?

Some microbes are used to make cheese and chocolate and other food. Gazillions of tiny, tiny, tiny creatures live on and in your body. And not just there. They’re in the air, in water, in dirt, in and on plants and animals—everywhere! They are called microbes, and you need a microscope to see them. We couldn’t live without microbes. But a few can make you sick. We call those ones germs, and they are usually either bacteria or viruses. Some help plants grow. Some keep your body healthy. (art © 2019 by Chris Jones) There are lots of kinds of bacteria in lots of shapes. Whatever their shape, bacteria can grow and split into two identical copies—fast! If bad bacteria get inside you, it doesn’t take long…

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