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 17 of 116
The Komodo dragon is a big lizard. It lives on some islands. It is the biggest lizard in the world. It can be very strong. These lizards are very cool to see. Do you want to see a big lizard?
Early Reader · Change the reading level on the articleKonrad Lorenz loved animals. He studied how birds act. He watched geese and their babies. He saw how babies follow their moms. This helps them stay safe. Do you like watching birds?
Early Reader · Change the reading level on the articleKrill are very small sea animals. They live in all the big oceans. Many animals eat them for food. Big whales love to eat them too. They help keep the sea healthy. Do you like to see sea life?
Early Reader · Change the reading level on the articleA kumquat is a small fruit. It looks like a tiny orange. The skin is sweet to eat. The inside is a bit sour. You can eat the whole thing! Do you like sweet and sour food?
Early Reader · Change the reading level on the articleKurt Lewin was a smart man. He studied how people act in groups. He wanted to help people get along. His work helps us today. Do you like working in a group?
Early Reader · Change the reading level on the articleRabbits, hares, and pikas are in a group. They have long back legs. This helps them jump and run. They eat plants and grass. They are very fun to see. Do you like these animals?
Early Reader · Change the reading level on the articleMany plants belong to one big family. They are often mints or sages. They can smell very good. We use them in our food. Some even help us feel better. Do you like the smell of mint?
Early Reader · Change the reading level on the articleA lamprey is a long fish. It has no jaw. It uses a round mouth to suck. This helps it stick to things. Some lampreys eat other fish. They live in the water. Do you like to swim?
Early Reader · Change the reading level on the articleThis is the end of your food path. It takes water from waste. This helps your body stay healthy. It also holds waste until you go to the bathroom. It is a very busy place! Do you want to learn more?
Early Reader · Change the reading level on the articleLarks are small birds. They live in many places. Many live in dry lands. They eat seeds and bugs. Their brown feathers hide them on the ground. Do you like bird songs?
Early Reader · Change the reading level on the articleSome animals change as they grow. A baby looks different than the adult. A caterpillar is a baby butterfly. It eats a lot of food. This helps it grow big. It will change soon. Do you see babies change?
Early Reader · Change the reading level on the articleLavender is a pretty plant. It has blue or purple flowers. It grows in warm, dry places. Many people grow it in gardens. We use it to make soaps and food. Do you like the smell?
Early Reader · Change the reading level on the articleLeaves are part of a plant. They are mostly green. Leaves use light from the sun. This helps them make food. They help the plant grow big. Do you like looking at leaves?
Early Reader · Change the reading level on the articleThe leafhopper is a tiny bug. It likes to jump very far. It drinks food from plants. It can be bright or plain. These bugs live all over the world. Can you find one in a garden?
Early Reader · Change the reading level on the articleA leek is a green plant. It grows in the ground. It tastes like an onion. You can eat it in a soup. It is very good for you. Do you like to eat leeks?
Early Reader · Change the reading level on the articleThe lemon is a yellow fruit. It grows on a small tree. The fruit tastes very sour. People use the juice in drinks. It can make yummy lemonade. Do you like sour food?
Early Reader · Change the reading level on the articleLemurs live on a big island. They like to live in trees. Most lemurs are active at night. They have long tails and big eyes. They live in groups. Do you like lemurs?
Early Reader · Change the reading level on the articleThe leopard is a big cat. It has gold fur with dark spots. These spots help it hide in the grass. It is a strong hunter. It can even climb trees. Do you like big cats?
Early Reader · Change the reading level on the articleButterflies and moths are special insects. They have bright wings. Tiny scales cover their bodies. They use a long tube to drink. This helps them eat from flowers. Do you like seeing them fly?
Early Reader · Change the reading level on the articleSome people get a sickness called leprosy. It can make skin feel numb. It can also hurt your nerves. Most people do not get sick from it. Medicine can help you get well. Can you help people feel better?
Early Reader · Change the reading level on the articleSome frogs have long, thin toes. They live in many warm places. Some frogs hide in the dirt. Others live in trees or water. Some lay eggs in soft foam. These frogs are very cool. Can you find a frog?
Early Reader · Change the reading level on the articleLettuce is a green plant. We eat its leaves. It can be in a salad. It can be in a sandwich. You can eat it raw. It is very tasty. Do you like lettuce?
Early Reader · Change the reading level on the articleOur blood helps us stay well. Sometimes, blood cells do not work right. This can make a person feel sick. It can cause bruises or a fever. Doctors use tests to help. We can help people get better. Do you want to…
Early Reader · Change the reading level on the articleA man named Lev studied how we learn. He lived a long time ago. He thought play helps kids grow. He also thought talking helps us think. His ideas help us today. Do you like to play?
Early Reader · Change the reading level on the articleLichens are not plants. They are two things living as one. One part makes food from the sun. The other part helps it stay safe. They can grow on rocks or trees. They can be many colors. Can you find some?
Early Reader · Change the reading level on the articleWe can guess how long people live. This is a big guess. It uses a math rule. Long ago, people died young. Now, we live much longer. It is good to be healthy. How old are you?
Early Reader · Change the reading level on the articleStrong bands hold your bones together. They help you move. These bands keep your joints steady. They work hard when you run. They help you stay strong. Can you feel your bones move?
Early Reader · Change the reading level on the articleMany plants are in the lily family. They have big, pretty flowers. Some grow from round bulbs in the dirt. These flowers look good in a vase. We can grow them in our gardens. Do you like bright flowers?
Early Reader · Change the reading level on the articleLilies are beautiful flowers. They grow from bulbs in the ground. Some are white, red, or pink. Many people love them in gardens. They smell very nice. Do you like flowers?
Early Reader · Change the reading level on the articleThis is a white flower. It looks like a tiny bell. It smells very sweet. Do not eat it. The plant is bad for you. It can make you sick. Can you find one in a garden?
Early Reader · Change the reading level on the articleThe lima bean is a small food. It can be green or yellow. Many people like to eat them. They help your body stay strong. They are very good for you. Do you like beans?
Early Reader · Change the reading level on the articleA lime is a small fruit. It is green and round. It has a sour taste. We use it in food. It helps us stay healthy. Do you like sour fruit?
Early Reader · Change the reading level on the articleThe lion is a big cat. It lives in the grass. Some lions have long hair on their necks. This hair is called a mane. Lions live in groups. Do you like big cats?
Early Reader · Change the reading level on the articleLi Shizhen was a wise doctor. He lived in China long ago. He wrote a very big book. It tells us about plants and tools. This book helps us stay well. Can you find a plant today?
Early Reader · Change the reading level on the articleLiverworts are tiny green plants. They grow on rocks and trees. They like to live in wet places. Some look like flat ribbons. They are very small. Can you find one in the shade?
Early Reader · Change the reading level on the articleLizards are small animals. They live in many places. Some are very tiny. Some are very big. Most lizards like the sun. They use heat to move. Do you like lizards too?
Early Reader · Change the reading level on the articleLlamas are special animals. They live in big groups. They have soft wool. People use them to carry things. They can learn new tasks. Do you like llamas?
Early Reader · Change the reading level on the articleLobsters live in the sea. They have hard shells. They have big claws. Many lobsters are dark green. They move on the sea floor. Some swim fast backward. Can you see their claws?
Early Reader · Change the reading level on the articleSome grasshoppers can form big groups. They live alone most of the time. But sometimes they stay together in a swarm. These groups eat many plants. They can move a long way. Have you ever seen a swarm?
Early Reader · Change the reading level on the articleSome people live for a very long time. They stay healthy as they get old. Good food and play help us. This is how we grow old. Do you want to live a long life?
Early Reader · Change the reading level on the articleLoons are water birds. They live in lakes. They are great at swimming. They use their feet to move. They can hold their breath. Can you see them swim?
Early Reader · Change the reading level on the articleLouis was a man who loved nature. He studied many fish. He also looked at big ice. He found out that ice once covered the land. This helps us learn about our world. Do you like looking at nature?
Early Reader · Change the reading level on the articleLice are tiny bugs. They live on birds and animals. Some bugs eat skin. Some bugs drink blood. They stay in hair or feathers. They can live on you too. Do you see them?
Early Reader · Change the reading level on the articleLuigi Galvani was a kind man. He studied how bodies work. He saw a frog's leg move. A tiny spark made it jump! This helped us learn about power. Do you like to learn new things?
Early Reader · Change the reading level on the articleDoctors can check the fluid in your back. This fluid helps protect your brain. It keeps your brain safe. Doctors use a tiny needle to help. They check the fluid to see if you are sick. It helps you feel better soon.…
Early Reader · Change the reading level on the articleA lungfish is a special fish. It can breathe air. It lives in the water. This helps it stay safe. It can live a long time. Do you like fish?
Early Reader · Change the reading level on the articleThe lychee is a sweet fruit. It grows on tall trees. The skin is pink or red. Inside, the fruit is white. It smells like a rose. It tastes very good! Do you like sweet fruit?
Early Reader · Change the reading level on the articleThese are very old plants. Some grew like big trees. Most are small today. They lived a long time ago. They help make coal. Do you like plants?
Early Reader · Change the reading level on the article