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.
The firebrat is a tiny bug. It likes to live in warm spots. It can be found near heat in homes. It eats things like dog food and books. These bugs are mostly harmless to us. Do you see them in warm places?
Early Reader · Change the reading level on the articleThis is a fire salamander. It is black with yellow spots. Some have red spots too. These bright colors tell animals to stay away. They live in dark forests. They like to hide in leaves. Do you like bright colors?
Early Reader · Change the reading level on the articleA first aid kit helps us. It has things for small hurts. It has sticky bandages and tools. It keeps us safe while we wait for help. It is good to have one. Do you have a kit at home?
Early Reader · Change the reading level on the articleFish live in the water. Their bodies have a head and a tail. Inside, they have a strong frame. This frame can be made of bone or soft parts. It helps them swim. Do you like to watch fish?
Early Reader · Change the reading level on the articleFish have fins on their bodies. Fins help them move in the water. They use them to swim fast. Fins also help them stay up. They help us see how fish move. Can you see a fish swim?
Early Reader · Change the reading level on the articleSome living things make more babies. This helps their kind stay strong. It is not about being fast. It is about having babies. This helps the group grow. Do you see animals with babies?
Early Reader · Change the reading level on the articleThe enoki is a small mushroom. It grows in big groups. Many people eat it in soup. It can grow in the dark. You should always cook it first. Do you like mushrooms?
Early Reader · Change the reading level on the articleThe flathead is a fish. It has a very flat head. It hides in the sand. It waits for food to swim by. Then it jumps up to eat! Can you see its eyes?
Early Reader · Change the reading level on the articleThe mullet is a fish. It lives in the sea. It has stripes on its side. Many people eat this fish. It can live in fresh water too. It is a cool fish to see. Have you seen a fish with stripes?
Early Reader · Change the reading level on the articleSometimes gas comes out of your body. This is a normal thing. It can make a noise. It can smell bad, too. It is okay to let it out. Do not hold it in. Have you ever let a gas fly?
Early Reader · Change the reading level on the articlePlants have special colors. These colors help bugs find flowers. Some plants have red or blue petals. You can eat these plants. We find them in berries and cabbage. They are in many foods. Do you like eating berries?
Early Reader · Change the reading level on the articleThe Flemish Giant is a big rabbit. It is very large. They can be many colors. These rabbits are very kind. They make good pets for you. Do you like big rabbits?
Early Reader · Change the reading level on the articleSome animals have flippers. They help animals swim in the water. They work like flat paddles. Flippers help them move fast. They help them turn too. Do you like to swim? We can swim like them!
Early Reader · Change the reading level on the articleMany birds fly in a big group. This group is called a flock. It helps them find food together. It also keeps them safe from danger. They look out for each other. Do you like to play in groups?
Early Reader · Change the reading level on the articleSome lands stay wet and green. Much of the grass is under water. Many birds and fish live there. These places help many animals grow. It is a busy home for them. Do you like to see birds?
Early Reader · Change the reading level on the articleFlorence was a great doctor. She studied how our bodies work. She helped make new laws to keep people healthy. Her work helped many people stay well. She was a very smart leader. Do you like to learn about science?
Early Reader · Change the reading level on the articlePlants know when to grow flowers. They watch the light each day. The green leaves make a special signal. This signal travels up the stem. It tells the plant to bloom. Do you like flowers?
Early Reader · Change the reading level on the articleA flounder is a flat fish. It lives on the sea floor. Both of its eyes are on one side. This helps it hide in the sand. It is a very cool fish. Can you see it hiding?
Early Reader · Change the reading level on the articleSmall bugs live in our food. They like to eat grain and flour. They are reddish-brown and oval. These bugs can live in dry places. They help us learn about science. Do you see them in your kitchen?
Early Reader · Change the reading level on the articleSmall bugs live in flour. They are pale white with pink legs. These bugs can make food taste bad. They can also make some people itchy. They are very tiny to see. Do you see them in your food?
Early Reader · Change the reading level on the articleSome bugs look like bright flowers. They hide on green leaves. This helps them stay safe. It also helps them find food. They wait for a snack to come near. Can you see the bug?
Early Reader · Change the reading level on the articleTiny bits of light move in water. They glow and move around. We watch how they dance. This helps us see how big they are. It is like a tiny game of hide and seek. Can you see them glow?
Early Reader · Change the reading level on the articleSome animals can move through the air. They can flap wings to fly. They can also glide from tree to tree. This helps them stay safe from danger. It is a fun way to travel. Do you like to see birds fly?
Early Reader · Change the reading level on the articleFlying squirrels glide in the trees. They have skin like a parachute. This helps them move from tree to tree. They use their tails to stay steady. They can eat seeds and fruit. They are very cool! Can you glide like…
Early Reader · Change the reading level on the articleSome foods help our bodies grow. You can find it in green leaves. It helps make new cells. It helps us stay strong. It is very good for you. Do you eat your greens?
Early Reader · Change the reading level on the articleSome foods make our bodies feel sick. This can happen very fast. Your skin might get itchy. Your tummy might hurt too. We must be careful with what we eat. Do you know which foods are safe for you?
Early Reader · Change the reading level on the articleLiving things need food to grow. One thing eats another. This starts with plants. Then an animal eats the plant. Next, a bigger animal eats that one. It is like a long line. How many links can you find?
Early Reader · Change the reading level on the articleWe must keep our food clean. This helps us stay well. It keeps bad germs away. Clean food helps you grow. We can wash our hands too. Do you wash your hands before you eat?
Early Reader · Change the reading level on the articleNature has a big web. Many things eat each other. Plants grow from the sun. Then bugs eat the plants. Then birds eat the bugs. It is a big circle. Do you see how it works?
Early Reader · Change the reading level on the articleThe footballfish lives in the deep sea. It is round like a ball. It uses a light to find food. This fish lives in the dark ocean. It is a very cool fish. Do you like deep sea fish?
Early Reader · Change the reading level on the articleTiny sea life has hard shells. They live on the ocean floor. Some float in the water. They are very small. These shells help them. Can you find them?
Early Reader · Change the reading level on the articleYour forearm is part of your arm. It is between your elbow and wrist. Two long bones live inside it. These bones help you move. They help you turn your hand. It helps you do many things. Can you move your wrist?
Early Reader · Change the reading level on the articleYour forehead is on your face. It is above your eyes. It sits below your hair. Your muscles move it. This helps you show feelings. You can look surprised! Can you feel your forehead?
Early Reader · Change the reading level on the articleSometimes we forget things. We might lose a thought. It can happen fast. It can also happen slow. You can stay active to help your brain. Moving your body is good for you. Do you ever forget things?
Early Reader · Change the reading level on the articleRed wood ants live in the woods. They build big nests of sticks. These ants are red and black. They can spray a liquid to stay safe. They like to eat sweet food from tiny bugs. Can you find a nest in the trees?
Early Reader · Change the reading level on the articleThese small bugs eat wood. They live in big groups. They can eat a lot of wood fast. This can hurt homes and trees. We must watch them closely. Do you like looking at bugs?
Early Reader · Change the reading level on the articleThe fossa is a big animal. It looks like a cat. It lives in the trees. It can climb very well. It is a fast hunter. We must help its home stay safe. Do you like cats?
Early Reader · Change the reading level on the articleA small group moves to a new home. They only take some traits with them. This can make the new group look different. The new group might be very special. It is like starting a new club. Do you like new things?
Early Reader · Change the reading level on the articleThis fish has a special look. It has two eyes on top. Each eye has two parts. One part sees in the water. One part sees in the air. It can see both at once! Can you see like a fish?
Early Reader · Change the reading level on the articleFowl are many kinds of birds. Some live on land. Some swim in water. They lay many eggs at once. We get food from them. They are very special birds. Do you like to eat eggs?
Early Reader · Change the reading level on the articleThe foxhound is a big dog. It has a great sense of smell. These dogs like to run and play. They can work in a group. They are very kind to people. Do you like big dogs?
Early Reader · Change the reading level on the articleFox Terriers are small dogs. They come in two kinds. One has smooth hair. One has rough hair. Most are white with spots. They can be your friend. Do you like dogs?
Early Reader · Change the reading level on the articleSome older people feel weak. Their bodies may get tired fast. They might walk very slowly. Eating good food helps a lot. Moving your body helps too. We can stay strong. Do you move your body?
Early Reader · Change the reading level on the articleFrancesco Redi was a smart man. He studied bugs and snakes. He showed that flies lay eggs. This is how maggots are born. He helped us learn about life. Do you like to look at bugs?
Early Reader · Change the reading level on the articleFrances Lee was a smart woman. She made tiny rooms. These rooms helped police find clues. Her small models look very real. She helped people learn to be detectives. Do you like to find clues?
Early Reader · Change the reading level on the articleFrancis Collins is a scientist. He looks for tiny parts of life. These parts help us stay well. He helps many people stay healthy. He is a very kind man. Do you like to learn new things?
Early Reader · Change the reading level on the articleFrancisco Varela was a smart man. He studied how living things work. He also liked to think about the mind. He helped people talk about science. He was a kind teacher. Do you like to learn new things?
Early Reader · Change the reading level on the articleFrançoise is a smart scientist. She found a tiny germ. This germ makes people sick. Her work helps us stay well. She won a very big prize. Do you like to learn about germs?
Early Reader · Change the reading level on the article