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.
5,533 public articles · Page 43 of 116
Long ago, small animals lived in Europe. They were the size of a rabbit. They had very long back legs. These legs helped them run and jump. They lived when the world was warm. Now they are gone. Can you imagine a…
Early Reader · Change the reading level on the articleSome sponges live in the sea. They use tiny hard bits to stay strong. These bits look like little stars. They help the sponge keep its shape. Most live in warm, shallow water. Can you find them in the ocean?
Early Reader · Change the reading level on the articleSome tiny things live in the soil. They are a type of fungus. They look smooth and clear. They help the ground stay healthy. You can find them in the dirt. Do you like to dig in the dirt?
Early Reader · Change the reading level on the articleCaldwell is a doctor. He helps our hearts stay strong. He says eat plants to stay well. Eat fruit and green food. This helps you feel good. Do you like eating plants?
Early Reader · Change the reading level on the articleThese flowers are bright and gold. They are called marigolds. People use them in food. They can make soup look pretty. You can even use them to make dye. They are very lovely! Do you like bright flowers?
Early Reader · Change the reading level on the articleYour calf is part of your leg. It is on the back of your leg. It has muscles that help you move. These muscles help you walk and run. They help your feet move too. Can you feel your calf muscles?
Early Reader · Change the reading level on the articleThis is a big museum. It is in a park. You can see fish and birds. It helps us learn about nature. It is very cool! Do you like animals?
Early Reader · Change the reading level on the articleThe California condor is a big bird. It has very wide wings. The bird is black and white. It eats food found on the ground. These birds can live a long time. We help them stay safe. Do you want to see them fly?
Early Reader · Change the reading level on the articleThe blue crab lives in the ocean. It has a blue shell. The crab eats plants and small fish. It helps the sea stay healthy. Do you like to see crabs?
Early Reader · Change the reading level on the articleThis is a tall tree. It lives near the sea. Its branches hang down low. It stays green all year. People use the wood for many things. Do you like big trees?
Early Reader · Change the reading level on the articleThe elephantfish lives in the sea. It has a long snout. It uses the snout to find food. It eats small clams. It lays eggs on the sand. Can you find one in the ocean?
Early Reader · Change the reading level on the articleThese are beautiful squirrels. They live in warm forests. Some live in city parks too. They eat nuts and fruit. They build nests in trees. Do you like squirrels?
Early Reader · Change the reading level on the articleThis is a big tree. It lives in the West. The tree has green leaves. It smells very good. The wood is soft and light. People use it for many things. Do you like the smell of trees?
Early Reader · Change the reading level on the articlePlants make food from the air. They use light to help. This makes food for the plant. It helps the plant grow big. It helps us too. Can you find a green leaf?
Early Reader · Change the reading level on the articleThe Camarasaurus was a big dinosaur. It had a very long neck. It also had a long tail. It walked on four legs. This dinosaur ate plants for food. It was very large. Do you like big dinosaurs?
Early Reader · Change the reading level on the articleTiny germs live in chicken. They can make you sick. You might get a tummy ache. It helps to cook meat well. This keeps you safe. Do you wash your hands?
Early Reader · Change the reading level on the articleThe Canada goose is a big bird. It has a black head. It has white cheeks. These birds like to live near water. They eat plants for food. They are very loud! Can you hear them honk?
Early Reader · Change the reading level on the articleThis is a brown crab. It lives in the sea. It has a shell like a pie crust. It hunts for food at night. It is a tasty snack for us. Do you like crab?
Early Reader · Change the reading level on the articleA tiny living thing lives in you. It stays in your mouth and gut. Most of the time it is fine. But sometimes it grows too much. This can make you feel sick. Can you find it under a lens?
Early Reader · Change the reading level on the articleTiny living things can cause an itch. They like to stay in wet places. They can make your mouth or skin feel sore. This can happen to babies or older people. Doctors can help you feel better. Have you ever had an…
Early Reader · Change the reading level on the articleThe cane toad is a very big toad. It has bumpy skin. It lives in many warm places. The toad can be bad for some animals. We must be careful around them. Do you like toads?
Early Reader · Change the reading level on the articleSome animals have mixed parents. A dog and a wolf can have a baby. This baby looks like both parents. It might have long legs like a wolf. It might have soft fur like a dog. Do you like dogs?
Early Reader · Change the reading level on the articleDogs and foxes are in a big group. They first lived in North America. Some were very small. Long ago, they moved to other lands. They have long legs to help them run. Do you have a dog at home?
Early Reader · Change the reading level on the articleDogs, wolves, and coyotes are all kin. They have big heads and long legs. They use strong teeth to eat. These animals live in many places. They can be very smart. Do you have a dog at home?
Early Reader · Change the reading level on the articleSome plants are in a big group. They can be trees or vines. Some make hops for drinks. Others make hemp for cloth. These plants help us in many ways. Do you like to see green plants? They are very cool to find!
Early Reader · Change the reading level on the articleSome animals eat their own kind. This happens when there is not much food. It helps them stay strong. It can also help keep their group small. Do you see animals eating in your yard?
Early Reader · Change the reading level on the articleA cantaloupe is a sweet fruit. It has orange flesh inside. The skin feels bumpy. It is mostly made of water. You can eat it for a snack. Do you like sweet fruit?
Early Reader · Change the reading level on the articleThe golden mushroom is bright yellow. It grows in the woods. It can smell like fruit. Some people like to eat it. It is a tasty treat. Do you like mushrooms?
Early Reader · Change the reading level on the articleThe caper is a green plant. It has pretty flowers. It can grow in dry places. People eat the small flower buds. They taste very strong. We use them in food. Have you ever tasted a caper?
Early Reader · Change the reading level on the articleSome peppers are very hot. This heat is in the pepper. It can make your mouth burn. It helps the plant stay safe. It keeps some animals away. Do you like spicy food?
Early Reader · Change the reading level on the articleThe caracal is a wild cat. It has long, fuzzy ears. It lives in dry places. This cat can jump high to catch birds. It is a very fast hunter. Do you like cats?
Early Reader · Change the reading level on the articleSome fish are very special. One kind is the goldfish. They live in many places. These fish can be your pets. They are fun to watch. Do you like bright fish?
Early Reader · Change the reading level on the articleCaraway is a plant. It has small parts that smell good. People put them in bread. They make food taste great! We can use them in many meals. Do you like yummy bread?
Early Reader · Change the reading level on the articleTiny parts make up all life. These parts use one special thing. It is in every plant and animal. It helps build our bodies. It is very important to us. Do you see it in the world?
Early Reader · Change the reading level on the articleThis crab lives in the sea. It can be green or red. It likes to eat small clams. These crabs move to many new places. They can change where they live. Do you like to look at crabs?
Early Reader · Change the reading level on the articleYour heart beats all day. It works in a loop. First, the heart relaxes. It fills up with blood. Then, the heart squeezes. It pumps the blood out. This helps you live. Can you feel your heart beat?
Early Reader · Change the reading level on the articleYour heart has strong muscle. It helps pump blood. This blood goes to your body. It keeps you moving. The muscle works all day. Can you feel your heart beat?
Early Reader · Change the reading level on the articleThis beetle is bright red. It has a black head. It lives under old wood. The red color helps it stay safe. You might see it in the spring. Do you like bright colors?
Early Reader · Change the reading level on the articleYour heart pumps blood. Sometimes the heart gets weak. It cannot push blood well. This can make you feel cold. It can make you sleepy. Doctors help the heart work. They use tools to help. Can you feel your heart beat?
Early Reader · Change the reading level on the articleWe can help a person. If they stop breathing, we push on their chest. This helps blood move. We can also blow air into their mouth. This helps them get air. It keeps their brain safe. It is a very big help. Can you…
Early Reader · Change the reading level on the articleSome plants look like grass. They grow in wet places. These plants can be green or red. They help many animals eat. People use them for many things. Can you find them near water?
Early Reader · Change the reading level on the articleTrue shrimp live in the water. They live in salt water and fresh water. Some are very tiny. Others grow big. They eat many things. They are fun to see! Can you find one in the sea?
Early Reader · Change the reading level on the articleCarl Akeley loved animals. He made models of them. These looked very real. People see them in museums. They help us learn. Do you like visiting museums?
Early Reader · Change the reading level on the articleCarl Chun loved the deep sea. He went on a big boat. He found many sea animals. He even found a squid. He shared what he found with us. Do you like the ocean?
Early Reader · Change the reading level on the articleCarl Hagenbeck loved wild animals. He built a big zoo. He made spaces like nature. Animals lived without metal bars. He also showed people from far lands. This was not a kind way to act. Do you like visiting the zoo?
Early Reader · Change the reading level on the articleCarl was a man who loved plants. He studied how they grow. He looked at tiny parts of plants. This helped us learn about trees. He was a very smart man. Do you like to look at plants?
Early Reader · Change the reading level on the articleCarlos was a smart doctor. He lived in Brazil. He found a new sickness. It came from a small bug. This helped many people stay well. Can you be a scientist too?
Early Reader · Change the reading level on the articleCarl Woese was a scientist. He studied tiny living things. He found a new group of life. This helped us learn about our world. It is a big discovery! Can you find tiny things?
Early Reader · Change the reading level on the article