AR34 165 W  Why Do We Need to Brush Our Teeth?

Brushing your teeth is an important part of staying healthy. We eat food every day, and small bits of food stay on our teeth. If we don¡¯t brush, germs grow in our mouth. These germs make something called plaque. Plaque can hurt our teeth and make holes called cavities. Brushi...

AR34 179 W  Why Should We Wash Our Hands Often?

Washing our hands is one of the best ways to stay healthy. Our hands touch many things every day—doorknobs, toys, phones, and food. These things can have germs, which are tiny things we can¡¯t see. Some germs can make us sick. When we wash our hands, we use soap and wate...

AR34 168 W  Why Do We Need Sleep?

Sleep is very important for our body and mind. When we sleep, our body rests and gets ready for a new day. Sleep helps us grow, stay healthy, and feel good. During sleep, our brain is still working. It helps us remember what we learned during the day. Sleep also helps us think...

AR34 174 W  Why Is Exercise Good for You?

Exercise is good for your body and your mind. When you move your body, you get stronger, healthier, and happier. Let¡¯s learn why exercise is so important. First, exercise helps your body. When you run, jump, or stretch, your muscles grow, your bones get stronger, and your hea...

AR34 201 W  How Can We Eat a Healthy Meal?

Eating healthy food is important for growing strong and feeling good. A healthy meal gives our body the energy, vitamins, and strength it needs each day. But how can we eat a healthy meal? First, we should eat different kinds of food. Our plate should have vegetables, fruits, ...

AR34 204 W  How Do Our Eyes See?

Your eyes help you see the world. But how do they work? Light bounces off things around you. This light enters your eyes. First, it goes through a clear part called the cornea. The cornea bends the light. Then, the light passes through the pupil. The pupil is the black dot in the...

AR34 180 W  Why Is Blood Red?

Have you ever seen a cut on your skin? Blood comes out, and it is red. But why is blood red? Blood is a liquid that moves inside your body. It carries oxygen and food to your body parts. Blood is made of many things. One of them is red blood cells. Red blood cells are small an...

AR34 182 W  What Does the Heart Do?

Your heart is always working, even when you sleep. It is a strong muscle inside your chest. The heart¡¯s job is to pump blood through your body. It works like a pump that never stops. Blood carries oxygen and food to all parts of your body. The heart pushes blood through littl...

AR34 182 W  Why Are Bones Hard?

Bones are inside your body. They help you stand, walk, and move. But have you ever wondered why bones are so hard? Bones are not soft like your skin or muscles. They are strong and hard like a rock! Bones are made of many things. One important part is calcium. Calcium is a min...

AR34 164 W  Where Are Muscles?

Muscles are all over your body. You have muscles in your arms, legs, back, and even in your face! Muscles help you move. They work when you run, jump, smile, or even blink your eyes. There are more than 600 muscles in your body. Some are big, like the ones in your legs. Some a...

AR34 187 W  How Do Ears Hear Sounds?

Your ears help you hear sounds. But how do they work? Sound is made by vibrations. When something shakes, it makes the air move. These movements are called sound waves. Your ears catch the sound waves and help you hear. First, the sound waves go into your outer ear. This is th...

AR34 175 W  How Does the Nose Smell?

Your nose helps you smell things. But how does it work? Smells are made of tiny particles in the air. These particles come from flowers, food, animals, and more. When you breathe in, the particles go into your nose. Inside your nose, there are special cells called smell recept...

AR34 157 W  Why Do Fingernails Grow?

Have you ever watched your fingernails grow? It may be slow, but they do grow! Fingernails are made of a hard material called keratin. Your hair is made of keratin too. Fingernails grow from a part under your skin called the nail root. This part makes new nail cells. The new c...

AR34 179 W  Why Does Hair Fall Out?

Have you ever seen hair on your pillow or in your comb? That¡¯s normal! Hair falls out every day. But why does it happen? Hair grows from your skin in places called hair follicles. Each hair grows for a while, then stops. After it stops growing, the hair falls out. A new hair ...

AR34 165 W  How Does the Body Grow?

Your body changes a lot as you grow. But how does it happen? When you are a baby, you are very small. As time passes, you get taller, stronger, and smarter. This is called growth. Your body grows because of cells. Cells are tiny parts that make up your body. You have trillions...

AR34 164 W  Why Do We Catch Colds?

Sometimes your nose runs. You cough or feel tired. You might have a cold. But why do colds happen? Colds come from tiny germs called viruses. They are so small you can¡¯t see them. Viruses can live on hands, doors, and toys. If you touch them and then touch your nose or mouth,...

AR34 161 W  What Should You Do When You Have a Fever?

Sometimes your body feels hot. You feel tired and your head may hurt. That means you might have a fever. But what should you do? A fever happens when your body is fighting germs. Germs can make you sick. Your body gets hot to help stop the germs. A little fever is not bad. It ...

AR34 173 W  Why Do We Go to the Hospital?

Sometimes we feel sick or get hurt. When that happens, we may go to the hospital. But why do we go there? A hospital is a place where doctors and nurses work. They help people feel better. If you have a fever, a bad cough, or a broken bone, doctors can help. They know how to c...

AR34 201 W  What Is Inside Our Body?

Have you ever wondered what is inside your body? You can¡¯t see it, but there are many important parts working all the time! Your body has bones. Bones help you stand, walk, and move. They also protect things inside, like your brain and heart. Your bones are strong like sticks. ...

AR34 179 W  How to Stay Healthy

We all want to stay healthy. To be healthy, we need to do a few simple things every day. First, we should eat good food. Fruits, vegetables, and rice help us grow. They give us energy. We should also drink clean water. Water helps our body work well. Next, we need to exercise....

AR34 158 W  Why Do My Hands Itch?

Sometimes, our hands feel itchy. There are many reasons for this. One reason is dry skin. In winter, the air is cold and dry. We wash our hands many times, and this can make our skin dry. Dry skin can feel tight and itchy. Another reason is touching something that makes our sk...

AR34 166 W  How Do Knees Bend?

Our knees help us walk, run, and jump. The knee is a joint. A joint is a place where two bones meet. The bones in our leg connect at the knee. This helps our leg move. Inside the knee, there are strong bands called ligaments. Ligaments hold the bones together. There is also so...

AR34 148 W  Healthy Daily Habits

To stay healthy, we need good daily habits. A healthy day starts with a good breakfast. Eating fruit, eggs, or bread in the morning gives us energy. We can think better and feel strong at school. Next, moving our body is important. We can walk, stretch, or play outside. Exerci...

AR34 150 W  Why Do We Feel Hungry?

Sometimes, we feel hungry. This means our body needs food. Food gives us energy to move, think, and grow. When we do not eat for a while, our body says, ¡°I need food!¡± Our stomach helps us know we are hungry. The stomach is like a bag inside our body. When it is empty, it se...

AR34 162 W  Why Do We Blink?

We blink many times each day. Blinking is fast and we do not think about it. But blinking is very important for our eyes. When we blink, our eyelids move up and down. This helps to clean our eyes. Each blink spreads tears across the eye. Tears keep the eyes wet. Wet eyes are h...

AR34 168 W  Why Do We Get Nosebleeds?

Sometimes, blood comes out of our nose. This is called a nosebleed. Nosebleeds can look scary, but they are usually not dangerous. Inside our nose, there are many small blood vessels. These blood vessels are very thin and can break easily. When they break, blood comes out. ...

AR34 163 W  hy Does My Body Hurt After Exercise?

After we play or exercise, our body can feel sore. This is normal. It means our muscles are working and getting stronger. When we move a lot, our muscles stretch and pull. Tiny tears can happen in the muscles. These tears are very small, and they help the muscles grow. This is...

AR34 157 W  How Does a Cold Spread?

A cold is a sickness that many people get. It makes us cough, sneeze, and have a runny nose. Sometimes we feel tired and have a fever. A cold spreads from one person to another. When a sick person coughs or sneezes, tiny drops come out of their mouth or nose. These drops have ...

AR34 153 W  Why Do We Get Health Checkups?

We go to the doctor for a health checkup. A checkup helps us know if our body is healthy. It can find problems early, even if we feel fine. During a checkup, the doctor looks at our body. They check our eyes, ears, heart, and more. We may have to stand on a scale to check our ...

AR34 138 W  Why Do We Need Vitamins?

Vitamins help our body stay healthy. We need them to grow, move, and feel good. Even though we can¡¯t see them, vitamins work inside our body every day. There are many kinds of vitamins. Vitamin A is good for our eyes. Vitamin C helps us fight colds. Vitamin D makes our bones ...