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 24 of 116
Your body needs air to live. You breathe air in and out. This helps you get what you need. It also takes away bad air. This keeps you strong and well. Can you feel your chest move?
Early Reader · Change the reading level on the articleSometimes our lungs do not work well. This means the air we breathe does not get into our blood. It can make us feel very tired. Doctors can help us breathe better. Do you know how we breathe?
Early Reader · Change the reading level on the articleOur bodies need air to live. We breathe air in and out. This helps us stay strong. It is a busy job! Can you feel your chest move? Try to take a deep breath now.
Early Reader · Change the reading level on the articleThe quetzal is a bright bird. It lives in green forests. It eats fruit and small bugs. These birds have very long tails. They are very pretty to see. Do you like bright colors?
Early Reader · Change the reading level on the articleThe rhea is a big bird. It lives in South America. It has long legs and a long neck. This bird cannot fly. It runs on the ground instead. Do you want to see one?
Early Reader · Change the reading level on the articleThis is a rhesus monkey. It has a pink face. It is brown or grey. These monkeys live in big groups. They like to eat fruit. They are very smart. Do you like monkeys?
Early Reader · Change the reading level on the articleRhinos are very big animals. They live in Africa and Asia. They have thick skin. Some have one or two horns. They eat plants for food. We must help keep them safe. Do you like rhinos?
Early Reader · Change the reading level on the articleThese tiny living things live in water and soil. They use long arms to catch food. Some build small shells to stay safe. They help the big ocean stay healthy. We can find them in many places. Can you imagine being so…
Early Reader · Change the reading level on the articleThese are pretty plants. They can be small shrubs. Some can grow into big trees. They have bright flowers. These flowers bloom in the spring. They look very nice in a garden. Do you like bright flowers?
Early Reader · Change the reading level on the articleTiny machines live in your cells. They help make things your body needs. They build small pieces into big parts. These parts are called proteins. They work hard every day. Can you imagine tiny machines at work?
Early Reader · Change the reading level on the articleThese are bright, colorful birds. They have big heads. They also have long, pointy bills. Some eat fish from the water. Others eat bugs. They lay white eggs in a hole. The mom and dad help the babies. Do you like…
Early Reader · Change the reading level on the articleRobert Koch was a doctor. He looked at tiny germs. He found out what makes people sick. This helped save many lives. His work was very big. Do you like science?
Early Reader · Change the reading level on the articleThe rock dove is a bird. It is often called a pigeon. Wild ones are grey. They live on big rocks. They can fly very well. Do you see them in your park?
Early Reader · Change the reading level on the articleRoots live under the ground. They hold the plant in place. Roots drink water from the soil. This helps the plant grow big. Roots are very important for plants. Can you find a root?
Early Reader · Change the reading level on the articleEvery tooth has a tiny space inside. It holds soft parts. These parts help your tooth stay strong. They also help you feel hot and cold. This helps you enjoy your food. Do you know what is inside your teeth?
Early Reader · Change the reading level on the articleSome plants are in the rose family. They can be big trees or small bushes. They grow many kinds of food. You can eat apples and cherries. We also love pretty roses. Do you like eating fruit?
Early Reader · Change the reading level on the articleRosalind was a smart scientist. She studied tiny things. She looked at how life is made. Her work helped us learn about our bodies. She was a great helper to science. Do you like to learn new things?
Early Reader · Change the reading level on the articleA rose is a pretty plant. It has colorful flowers. The flowers can be red or pink. Some roses have sharp prickles on the stem. These can poke you. Do you like the smell of roses?
Early Reader · Change the reading level on the articleTiny germs can make kids sick. These germs go in your tummy. They can make you feel bad. They make you go to the bathroom a lot. This can make you lose water. Staying healthy is good! Do you wash your hands?
Early Reader · Change the reading level on the articleA tiny germ can make you sick. It can cause a pink rash. The rash starts on the face. It spreads to your body. It may itch a little. A shot can help keep you safe. Do you want to stay healthy?
Early Reader · Change the reading level on the articleMany plants are in one big family. They grow as trees or small bushes. Some make the coffee we drink. These plants live all over the world. They can be very pretty too. Do you like coffee?
Early Reader · Change the reading level on the articleSome animals chew their food twice. They eat plants first. Then they bring the food back up. They chew it again to stay strong. This helps them grow. Do you see cows doing this?
Early Reader · Change the reading level on the articleThis is a tiny living thing. It helps us make bread. It also helps make drinks. You can find it on fruit. It is very small. Can you find it in your kitchen?
Early Reader · Change the reading level on the articleSalamanders look like small lizards. They have long tails. Some live in cool, wet places. They can grow back a lost leg! This is very cool to see. Do you like wet places too?
Early Reader · Change the reading level on the articleSalmon are special fish. They live in rivers. Then they swim to the sea. They come back home to lay eggs. This is a long trip. Do you like fish?
Early Reader · Change the reading level on the articleTiny germs live in many places. They can live in food or animals. Some germs can make you sick. We stay safe by cooking food well. It is good to wash your hands. Do you like to wash your hands?
Early Reader · Change the reading level on the articleThese fish live in cold water. They swim in rivers and seas. They have sharp teeth for food. Many swim from rivers to the ocean. They help the world stay healthy. Do you like to see fish swim?
Early Reader · Change the reading level on the articleSome plants are called sage. They can have blue or red flowers. Some even smell good. We use them for food. They can grow in many places. Do you like the smell of sage?
Early Reader · Change the reading level on the articleSandpipers are small birds. They live near water. They use long bills to find food in the mud. This helps them eat tiny bugs. They are very neat birds. Do you like to look for birds?
Early Reader · Change the reading level on the articleSantiago was a great thinker. He studied how the brain works. He used a tool to see tiny parts. He drew what he saw. His art helps us learn today. Do you like to draw things?
Early Reader · Change the reading level on the articleYour muscles help you move. Tiny parts inside them pull together. This makes your muscles work. It helps you run and play. It is very cool! Do you like to move your body?
Early Reader · Change the reading level on the articleSome fish have thick fins. These fins look like little arms. They helped fish move. Long ago, these fins turned into legs. This helped animals walk on land. We are related to them! Do you like fish?
Early Reader · Change the reading level on the articleSome dinosaurs were very big. They had long necks. They also had long tails. These giants ate plants. They had four thick legs. They were huge! Can you imagine being that big?
Early Reader · Change the reading level on the articleA savanna is a big land. It has grass and trees. The trees are far apart. This lets light hit the ground. It is very warm there. Many animals live here. Do you like the sun?
Early Reader · Change the reading level on the articleThe sawfish is a very big fish. It has a long nose. The nose looks like a saw. It uses the saw to find food. These fish are hard to find now. We must help them. Do you like big fish?
Early Reader · Change the reading level on the articleTiny bugs live in the skin. They are too small to see. They make your skin feel itchy. It can feel worse at night. This can happen to many people. Have you ever had an itch?
Early Reader · Change the reading level on the articleSome bugs are very small. They live on plants. They drink plant juice for food. The moms stay in one place. They make a wax home. It keeps them safe. Can you find them on a leaf?
Early Reader · Change the reading level on the articleScales are hard plates on skin. They help keep animals safe. Fish and snakes have them too. They can be many colors. They are very cool to see! Do you like scales?
Early Reader · Change the reading level on the articleA scallop lives in the sea. It has a pretty shell. The shell looks like a fan. Some scallops can swim fast. They clap their shells to move. They use many tiny eyes to see. Do you like pretty shells?
Early Reader · Change the reading level on the articleSome kids get a red rash. It can feel like rough sandpaper. Your throat might feel sore too. It is good to wash your hands. This helps keep you well. Do you feel good today?
Early Reader · Change the reading level on the articleSome animals eat things that are dead. They find old food or dead plants. This helps keep the world clean. It is like a cleaning crew. Do you see scavengers near you?
Early Reader · Change the reading level on the articleMany types of fish live in the sea. Some have sharp spines on their heads. They like to eat small fish. They often stay near the bottom. These fish are very cool to see! Do you like fish?
Early Reader · Change the reading level on the articleA scorpion is a small animal. It has eight legs. It has two big claws. It has a long tail. The tail has a stinger. Most scorpions are safe for us. Do you like scorpions?
Early Reader · Change the reading level on the articleSome birds live by the sea. They find food in the salt water. They fly over the big waves. These birds help us find fish. They are very special. Do you like the ocean?
Early Reader · Change the reading level on the articleA sea cucumber lives on the sea floor. It has a long, soft body. It looks like a sausage. It helps clean the ocean. It eats tiny bits of food. It is very neat! Do you want to see one?
Early Reader · Change the reading level on the articleA seahorse is a small fish. It lives in the sea. It has a tail that can grab things. This helps it stay in one place. It looks like a tiny horse. Do you want to see one?
Early Reader · Change the reading level on the articleThe sea otter lives in the ocean. It has very thick fur. This fur keeps the otter warm. It eats small things from the sea. The otter is a busy animal. Do you like otters?
Early Reader · Change the reading level on the articleSea snakes live in the warm ocean. They have tails like paddles. This helps them swim well. They must swim up to breathe air. Most stay in the water. Do you like to swim in the sea?
Early Reader · Change the reading level on the article