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.
Alice Hamilton was a doctor. She helped people at work. She studied how metals can make people sick. This work helped keep workers safe. She was a very smart leader. Do you want to be a doctor too?
Early Reader · Change the reading level on the articleAlice was a doctor. She helped many people. She studied how light can make people sick. This helped keep babies safe. Her work was very good. Do you want to be a doctor?
Early Reader · Change the reading level on the articleTiny living things live in the sea. They can glow in the dark. They live inside a small squid. This helps the squid hide. It is a neat trick! Can you see the light?
Early Reader · Change the reading level on the articleYour body has many tiny parts. These parts tell your body how to grow. Some parts make flowers purple. Some parts make them white. These tiny parts are very special. They make you who you are. Do you see things that…
Early Reader · Change the reading level on the articleSome things can make us sneeze. These things are often in the air. Dust or food can be one. They can make your nose itchy. This happens to some people. It can feel quite silly. Do you ever sneeze a lot?
Early Reader · Change the reading level on the articleMany people help us stay well. They are not doctors or nurses. They use special tools to help. They work in big hospitals. They also work in small clinics. These helpers are very important. Do you know a health helper?
Early Reader · Change the reading level on the articleSome plants smell like garlic. They grow in small bulbs. You can eat them. Onions are one kind. They help us cook food. Do you like onions?
Early Reader · Change the reading level on the articleThis is a green onion. It has long, hollow leaves. It does not grow a round bulb. It tastes like a regular onion. People use it in many tasty foods. Do you like onions?
Early Reader · Change the reading level on the articleThis plant is wild garlic. It grows in wet woods. Bears like to eat it. You can use it in food. It smells like garlic. Can you find it in the woods?
Early Reader · Change the reading level on the articleThe alder is a big tree. It likes to grow near water. It can grow in wet mud. The tree helps many birds and bugs. It is a very helpful tree. Do you like to see trees by a river?
Early Reader · Change the reading level on the articleThe red alder is a big tree. It grows near the water. Its bark can look red. Birds and deer like to eat it. This tree helps the forest grow. Do you like big trees?
Early Reader · Change the reading level on the articleA doctor named Alois Alzheimer helped us. He studied the brain. He found why some people forget things. This helps doctors today. He was a very smart man. Do you like learning about the brain?
Early Reader · Change the reading level on the articleSome people lose hair in small spots. These spots are round like coins. This happens because the body gets confused. It attacks the hair roots by mistake. Hair can grow back later. It is not a sickness you can catch.…
Early Reader · Change the reading level on the articleShad are a type of fish. They live in the sea and rivers. Some are dark blue or green. They swim in big groups. They can hear sounds we cannot. This helps them stay safe. Do you like to watch fish?
Early Reader · Change the reading level on the articleSome shrimp have a big claw. It works like a loud snap. This snap helps them catch food. It also keeps them safe. They live in the sea. Can you hear the snap?
Early Reader · Change the reading level on the articleThe Alpine goat is a large goat. They come in many colors. They have ears that stand up. These goats give us lots of milk. We use it to make cheese. They are very friendly. Do you like goat milk?
Early Reader · Change the reading level on the articleThis is a mountain goat. It lives on high rocks. It has big horns. It eats green grass. It is a great climber. Can you see it climb?
Early Reader · Change the reading level on the articleHigh mountains have a special place. It is very cold there. The wind blows hard. No big trees can grow. Small plants stay close to the ground. This helps them stay safe. Do you like the cold?
Early Reader · Change the reading level on the articleSome people have a hard time moving. Their bodies do not work well. This makes it tough to walk. It can be hard to talk too. We can help them feel good. Do you help your friends?
Early Reader · Change the reading level on the articleSometimes our minds feel different. We can dream while we sleep. We can also sit very still to think. This can help us feel calm. It is a special way to be. Have you ever had a big dream?
Early Reader · Change the reading level on the articleLiving things change over time. Some people had new ideas about this. They did not all agree on how it works. They thought of many ways life grows. Do you like to learn new things?
Early Reader · Change the reading level on the articleThese were small dinosaurs. They had very long legs. They could run fast. They had tiny arms and strong hands. They may have used them to dig for bugs. Do you like dinosaurs?
Early Reader · Change the reading level on the articleSome frogs are called painted frogs. They live in Europe and Africa. Some look like toads. Others look like frogs. Their babies live in ponds. They are very special. Can you find a painted frog?
Early Reader · Change the reading level on the articleMany plants belong to one big family. Some of these plants are green leaves. We eat them for food. You might eat spinach or beets. These plants grow in many places. Do you like to eat plants?
Early Reader · Change the reading level on the articleThis was a big dinosaur. It lived a long time ago. It had tall spikes on its neck. These spikes may have been for defense. It ate plants to grow. Can you imagine a dinosaur with spikes?
Early Reader · Change the reading level on the articleThese are green parrots. They live in warm forests. They like to eat seeds and fruit. Some can even talk like us! They are very smart birds. Do you like birds?
Early Reader · Change the reading level on the articleA pink dolphin lives in the river. It swims in South America. It can be a bright pink color. This helps it swim in the water. It eats many kinds of fish. Do you like pink animals?
Early Reader · Change the reading level on the article{ "text": way to walk sideways is fun. These bugs have long legs. They use them to feel things. They like to hide in dark places. It is fun to watch them. Can you see their long legs? ", "media": […
Early Reader · Change the reading level on the articleThis is a small plant. It grows on a far island. It has tiny white flowers. This plant is very old. It helps us learn about flowers. We can look for it! Do you like plants?
Early Reader · Change the reading level on the articleAmbroise Paré was a doctor. He helped many people. He worked for kings in France. He made new tools to help heal wounds. He also made fake eyes. His work helped many people live. Do you want to be a doctor?
Early Reader · Change the reading level on the articleThis was a walking whale. It lived in the water. It lived on land too. It could swim like an otter. It helped us learn how whales grew. It is very cool! Do you like whales?
Early Reader · Change the reading level on the articleThe American alligator is a big reptile. It lives in wet places. It can be very dark. Mothers help their babies stay safe. This helps the land stay healthy. Do you like big animals?
Early Reader · Change the reading level on the articleThe badger is a small animal. It lives in the grass. It has big claws for digging. These claws help it find food. The badger is very strong. It is a busy digger. Do you like to dig in the dirt?
Early Reader · Change the reading level on the articleThe black bear lives in forests. It is a medium bear. It eats many kinds of food. It can live in many places. This bear is a great friend to nature. Do you like bears?
Early Reader · Change the reading level on the articleThe chestnut is a big tree. It grows very fast. It makes tasty nuts for us. Many animals love to eat them. The nuts help animals stay full. Can you find a chestnut tree?
Early Reader · Change the reading level on the articleThis is a big bug. It is reddish brown. It can run very fast. It likes to stay in warm spots. It can hide in small cracks. Do you see it run?
Early Reader · Change the reading level on the articleThe black crow is a smart bird. It lives in many places. It eats seeds and bugs. It can even use tools to find food. These birds are very clever. Do you see a crow in a tree?
Early Reader · Change the reading level on the articleA big lion lived long ago. It lived in North America. It was very large. It was bigger than a lion today. This cat was very strong. We can find its bones in the ground. Do you want to see its bones?
Early Reader · Change the reading level on the articleThe lobster lives in the sea. It is very big and heavy. It has two large claws. These claws help it eat. The lobster is often green or brown. Do you like to see sea life?
Early Reader · Change the reading level on the articleThe mink is a small animal. It lives near water. It can swim very well. It likes to eat fish. This animal helps us learn about nature. Can you find a mink in a book?
Early Reader · Change the reading level on the articleThe pickerel is a fish. It lives in lakes and ponds. It eats other small fish. This fish helps the water stay healthy. You can see them in North America. Do you like looking at fish?
Early Reader · Change the reading level on the articleThis is a special kind of cat. Long ago, cats lived on big ships. They helped catch mice. These cats are very strong. They come in many colors. You might see one today! Do you like cats?
Early Reader · Change the reading level on the articleThis is a special donkey. It lives in a place called Italy. It has grey fur. It has stripes on its legs. These donkeys are very strong. They can live on hard land. Do you like donkeys?
Early Reader · Change the reading level on the articleAmmonites lived in the sea. They had shells like curls. These shells helped them swim. They are gone now. We find their shells in rocks. Do you want to see one?
Early Reader · Change the reading level on the articleSome animals live on land. They do not need water to have babies. They can lay eggs on dry ground. This helps them live in many places. It is very cool! Do you like animals that live on land?
Early Reader · Change the reading level on the articleAn amoeba is a tiny living thing. It can change its shape. It moves by stretching out parts of its body. It uses these parts to catch food. It is very small. Can you find one in a pond?
Early Reader · Change the reading level on the articleTiny bugs can live in our bellies. They can make us feel sick. They might make your tummy hurt. They can also make you go to the bathroom a lot. We can stay safe by washing our hands. Do you wash your hands with soap?
Early Reader · Change the reading level on the articleThe bear-dog was a big animal. It looked like a bear and a dog. It lived a long time ago. It was very strong. We can find its bones in the ground. Do you want to see its teeth?
Early Reader · Change the reading level on the article