Read about living things, from cells and plants to animals and the human body. Choose an article below; its reading controls let you move between the available levels.
Hideyo Noguchi was a great doctor. He studied many tiny things. He helped find ways to treat snake bites. He worked very hard to help people. He was a famous scientist. Do you want to learn more about him?
Early Reader · Change the reading level on the articleFabricius was a doctor. He studied how bodies work. He looked at eyes and ears. He found things inside our veins. His work helps us stay well. Can you learn about him too?
Early Reader · Change the reading level on the articleYour body needs fat to work. Some fat lives in your blood. Too much of this fat can be bad. It can make it hard for blood to move. Eating good food helps you stay well. Do you eat healthy food?
Early Reader · Change the reading level on the articleYou can move fast to get strong. You run or move very hard. Then you rest for a little bit. You do this many times. It helps your heart stay healthy. Do you like to move fast?
Early Reader · Change the reading level on the articleHighland cattle have long hair. Their hair is very thick. It keeps them warm in the cold. They have long horns too. These cows live in Scotland. We can see them in the snow. Do you like their shaggy hair?
Early Reader · Change the reading level on the articleThe Himalayan is a soft cat. It has very long hair. It has big, round blue eyes. This cat is fun to pet. Do you like cats?
Early Reader · Change the reading level on the articleA hinny is a special animal. It comes from a horse and a donkey. It looks like both parents. It has small ears. It is not very common. Can you see a horse or a donkey?
Early Reader · Change the reading level on the articleYour hip helps you move. It is a joint. It holds your body up. It helps you walk and run. It keeps you from falling. Can you feel your hips?
Early Reader · Change the reading level on the articleA hip break is a hurt bone. It is in your upper leg. It can happen if you fall. It makes it hard to walk. It can hurt a lot. Doctors help fix it. Have you ever had a fall?
Early Reader · Change the reading level on the articleThis animal lived a long time ago. It looked like a small horse. It had three toes on its feet. It liked to eat grass. The world changed and they went away. Can you imagine seeing one?
Early Reader · Change the reading level on the articleLong ago, there were old horses. They had three toes on each foot. Some were small like sheep. They lived in many places. Now they are all gone. Do you like old bones?
Early Reader · Change the reading level on the articleYour brain has a special part. It helps you remember things. It also helps you find your way. This part is very important. It helps you know where you are. Do you like to remember things?
Early Reader · Change the reading level on the articleSome crabs live in the sand. They dig deep into the beach. They do not walk like you. They use their legs to dig. You can find them at the sea. They live in many warm places. Can you find one in the sand?
Early Reader · Change the reading level on the articleHistidine is a tiny part of food. It helps build your body. We must eat it to stay well. It helps your skin stay soft. It is very important for us. Do you like healthy food?
Early Reader · Change the reading level on the articleScientists look at tiny parts of life. They use a tool to see small things. These tiny parts make up our bodies. This helps us stay healthy. It is very cool to see. Do you want to look too?
Early Reader · Change the reading level on the articleTiny parts help your body work. They act like small spools. Your long bits of life wind around them. This keeps everything neat and safe. It helps them fit inside you. Can you imagine being so small?
Early Reader · Change the reading level on the articlePeople have studied bodies for a long time. They wanted to see how we work. Long ago, people in Egypt wrote about the heart. Doctors still study bodies to help us stay well. It is a big job! Do you want to learn more?
Early Reader · Change the reading level on the articlePeople want to know how life works. Scientists look at how our bodies change. They study how we use food for energy. This helps us stay healthy. It is very cool! Do you want to learn more?
Early Reader · Change the reading level on the articlePeople have known about this for a long time. Doctors found it in old Egypt. Some thought it looked like a crab. Now, doctors use many tools to help. They work hard to find cures. Can you learn more about it?
Early Reader · Change the reading level on the articlePeople study how living things live. They look at plants and animals. They see how they work together. This helps us care for our world. It is a big job. Do you like nature?
Early Reader · Change the reading level on the articleLiving things change over time. This is called evolution. It helps animals fit their homes. Some animals change to stay safe. It is a big story of life. Can you see how things change?
Early Reader · Change the reading level on the articlePeople can change how living things grow. We can change a plant or a bug. This helps us make better food. It can also help us make medicine. We use new tools to do this. It is a big job. Do you want to learn more?
Early Reader · Change the reading level on the articleHow do we look like our moms and dads? We get bits from them. These bits tell our bodies how to grow. It is like a tiny plan. This plan helps make you, you! Do you look like your family?
Early Reader · Change the reading level on the articleNurses help people feel better. They care for the sick. Long ago, many people did this work. They did it to be kind. This work helps us all. Do you want to help people?
Early Reader · Change the reading level on the articlePeople study old bones. They find them in the ground. These bones show us old life. It helps us learn about Earth. We can see how life changed. Do you like old bones?
Early Reader · Change the reading level on the articleDoctors study why we get sick. They look at our bodies to find answers. They use tools to see tiny things. This helps them keep us well. It is a big job. Do you want to be a doctor?
Early Reader · Change the reading level on the articleHives are itchy bumps on your skin. They can be red. They may feel hot or sting. They can happen from food or bugs. They go away after a little while. Have you ever had itchy skin?
Early Reader · Change the reading level on the articleSome people get a sickness in their body. It makes small bumps grow under the skin. These bumps can be in the neck. You might feel very tired too. Doctors can help people get better. Have you ever felt a small bump?
Early Reader · Change the reading level on the articleHolly is a green plant. It can be a small bush or a tall tree. Many hollies have red berries. People use them for holiday decorations. Birds love to eat the berries for food. Do you like seeing bright red berries?
Early Reader · Change the reading level on the articleMany animals are going away. They lose their homes. This happens because of what people do. It matters to all of us. We can help the world. Can you help too?
Early Reader · Change the reading level on the articleSome tiny things are like animals. They are very small. They live in the water. They help us learn about life. We can find them in the sea. Do you like to look at tiny things?
Early Reader · Change the reading level on the articleThe blue lobster lives in the sea. It has two big claws. One claw can crush things. The other claw can tear things. These lobsters are very tasty. Do you like seafood?
Early Reader · Change the reading level on the articleSome people use a special way to heal. They use very tiny bits of things. They think like cures like. But science says these do not work. They do not help sick people. Do you know about doctors?
Early Reader · Change the reading level on the articleYour body stays just right. It keeps your heat steady. It also keeps your food levels good. This helps you stay well. It is like a tiny helper inside you. Does your body feel warm today?
Early Reader · Change the reading level on the articleSome animals stay warm inside. This stays the same all day. It does not change with the weather. This helps them move and play. It is very cool! Do you feel warm too?
Early Reader · Change the reading level on the articleGreat apes are a big family. They include humans and apes. Some live in trees. Some live on the ground. They are our close kin. Do you like apes?
Early Reader · Change the reading level on the articleSome big apes are like us. They live in warm forests. This group has humans and gorillas. It also has chimpanzees. We are all part of one big family. Do you like big apes?
Early Reader · Change the reading level on the articleHumans and chimps are close kin. They belong to one big group. This group has many old relatives. Some lived a long time ago. They help us learn about life. Do you like learning about animals?
Early Reader · Change the reading level on the articleWe are part of a big group. This group is called Homo. It includes us and our old kin. They lived a long time ago. They used tools to help them. They were very smart. Do you want to learn more?
Early Reader · Change the reading level on the articleA long time ago, people lived in Spain. They were very early explorers. They used stones to make tools. They lived near deer. These people are very old! Do you like to explore?
Early Reader · Change the reading level on the articleLong ago, people lived in Africa. They were very good at work. They made tools to help them. These people could walk on two legs. They are part of our family. Can you imagine living long ago?
Early Reader · Change the reading level on the articleLong ago, tiny people lived on an island. They were very small. They lived in a dark cave. They used stones to make tools. We found their bones in the ground. They are gone now. Do you think they were cute?
Early Reader · Change the reading level on the articleLong ago, people lived in Africa. We found old bones there. These bones are very old. They help us learn about the past. It is like a puzzle! Do you like old bones?
Early Reader · Change the reading level on the articleLong ago, people lived in a new way. They lived in Africa and Europe. They used stone tools. They even hunted big animals. They may have built small huts. Do you want to see their old bones?
Early Reader · Change the reading level on the articleYour body has tiny parts that tell it how to grow. These parts can break. Then, they swap pieces to fix themselves. This helps make you special. It is like magic! Do you like to learn new things?
Early Reader · Change the reading level on the articleMany animals share the same body parts. A whale's flipper and a dog's leg are similar. They came from the same old family. This helps us see how we are all linked. It is like a big family tree. Do you see patterns in…
Early Reader · Change the reading level on the articleLong ago, a new kind of person lived on an island. They lived in a big cave. They may have been quite small. They used tools to get food. We found their old teeth and bones. It is a big mystery! Do you like finding…
Early Reader · Change the reading level on the articleLong ago, a new kind of person lived. They lived in a big cave. They liked to climb in trees. They ate nuts for food. They were very special to find. Do you like caves?
Early Reader · Change the reading level on the article