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 101 of 116
Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.
Germs can make a person very sick. Sometimes the body fights too hard. This makes it hard for blood to move. This can hurt the body. Doctors help people feel better. Do you know how to stay healthy?
Early Reader · Change the reading level on the articleThese are the biggest trees. They live in California. They can be very old. Some trees live for a long time. They help us by holding air. Do you want to see them?
Early Reader · Change the reading level on the articleThe redwood is a giant tree. It is the tallest tree on Earth. These trees live for a very long time. They can live for over 1,000 years! They have thick red bark. Do you want to see one?
Early Reader · Change the reading level on the articleThe Serengeti is a big land in Africa. Many wild animals live there. You can see lions and zebras. Many animals walk a long way to find food. It is a very special place. Do you like big animals?
Early Reader · Change the reading level on the articleThis is a small palm plant. It grows in sandy places. The leaves look like big fans. They have sharp teeth on them. This plant can live for a long time. It is food for some animals. Can you see the fan leaves?
Early Reader · Change the reading level on the articleThese are big birds with long legs. They live in grassy lands. They like to run on the ground. They also eat bugs and snakes. You might hear them call out loud. Do you like big birds?
Early Reader · Change the reading level on the articleThe serow is like a goat. It lives on rocky hills. Both moms and dads have small horns. They have beards too. These animals help us learn about nature. Can you find a serow in a book?
Early Reader · Change the reading level on the articleThe serval is a wild cat. It lives in Africa. It has big ears and long legs. Its coat has black spots. This helps it hunt for food. It is a very cool cat. Can you see its spots?
Early Reader · Change the reading level on the articleSome animals are trained to help. They do special jobs for people. A dog can open a door. A horse can help a person walk. These helpers make life easier. Do you like animals?
Early Reader · Change the reading level on the articleA setter is a special dog. They help find birds. They use their noses to smell. When they find a bird, they stop and stay very still. They are very happy and friendly. Do you like dogs?
Early Reader · Change the reading level on the articleSome animals look very special. Males may have bright colors. They might have long tails. This helps them find a mate. It helps them have babies. Do you see bright colors in nature?
Early Reader · Change the reading level on the articleA shallot is a small onion. It grows in a little group. The skin can be red or gold. It tastes like a mild onion. People use it in yummy food. Do you like onions?
Early Reader · Change the reading level on the articleThis was a small reptile. It lived a long time ago. It had skin between its back legs. This helped it glide through the air. It is like a tiny plane. Can you imagine gliding like this?
Early Reader · Change the reading level on the articleA sheep and a goat can have a baby. This baby is a mix of both. It can look like a sheep. It can look like a goat. These babies are very rare. Do you like sheep and goats?
Early Reader · Change the reading level on the articleTiny bugs make a special stuff. They live on trees. It is a sticky kind of glue. People use it on wood. It is even on candy! Can you find it?
Early Reader · Change the reading level on the articleShellfish live in the water. They have hard shells. Some are small like shrimp. Some are big like crabs. People eat them for food. They help keep water clean. Do you like to eat them?
Early Reader · Change the reading level on the articleSherwood Washburn loved animals. He studied how monkeys live. He went to far places to see them. This helped us learn about people. He was a great teacher. Do you like to watch animals?
Early Reader · Change the reading level on the articleThe Shetland pony is a small horse. They come from cold islands. They have thick hair to stay warm. These ponies are very strong. They can help people do work. Many children like to ride them. Do you like ponies?
Early Reader · Change the reading level on the articleThis bug looks like a leaf. It has a wide body. This helps it hide. It is hard to see. This helps the bug stay safe. Can you find it? It is so cool!
Early Reader · Change the reading level on the articleTiny germs can make us sick. They live in people and gorillas. These germs can hurt your tummy. They make you go to the bathroom a lot. It is good to stay clean. Can you wash your hands?
Early Reader · Change the reading level on the articleShimeji are tasty mushrooms. They grow in many places. They can be brown or white. You can cook them in soup. They taste good when they are hot. Do you like mushrooms?
Early Reader · Change the reading level on the articleSome people get a skin rash. It can feel very sore. It often looks like a stripe. This happens because of a tiny germ. The germ stays in you for a long time. It can wake up later. Have you ever had a rash?
Early Reader · Change the reading level on the articleSome sea animals look like worms. They live in wood. They use tiny shells to drill holes. This can break old ships and docks. They are very strong. Can you find them in the sea?
Early Reader · Change the reading level on the articleYour body shakes when you are cold. This shake is called shivering. It helps make you warm. It uses your muscles to make heat. This keeps you safe. Have you ever felt a chill? Do you shake when it is cold?
Early Reader · Change the reading level on the articleA giant sea lizard lived long ago. It was very big. It had a long nose. It swam in the deep blue sea. We found its bones in the ground. It is a cool find! Do you like big sea animals?
Early Reader · Change the reading level on the articleThis is a small dog. It lives in the big rainforest. It likes to eat fish and bugs. It stays away from people. It is a very special animal. Can you find it in the trees?
Early Reader · Change the reading level on the articleSometimes it is hard to breathe. It can feel tight in your chest. You might feel like you need more air. This can happen when you run fast. It can also happen when you rest. Doctors can help you feel better. Have you…
Early Reader · Change the reading level on the articleYour shoulder helps you move. It connects your arm to your body. It lets you lift and pull things. It even lets you spin your arm. It is a very busy part of you. Can you move your arm in a circle?
Early Reader · Change the reading level on the articleSmall shrimpfish live in the sea. They look like tiny shrimp. They swim with their heads down. This helps them hide in the grass. They have a dark stripe on them. We can see them in the water. Do you like small fish?
Early Reader · Change the reading level on the articleThe siamang is a large ape. It has black fur. It lives in the trees. It has a big throat pouch. It uses this to make loud calls. We can hear them sing! Do you like loud songs?
Early Reader · Change the reading level on the articleSian Kaʼan is a big, special place. It is in Mexico. It has land and blue sea. Many animals live there, like monkeys and birds. We must help keep it safe. Can you imagine seeing a jaguar there?
Early Reader · Change the reading level on the articleThe Siberian crane is a white bird. It has a red face. These birds fly very far. They fly to stay warm. We must help them stay safe. Do you like big birds?
Early Reader · Change the reading level on the articleThe Siberian tiger is a big cat. It lives in the cold snow. It has orange fur with black stripes. This helps it hide. These cats are very strong. Do you like big cats?
Early Reader · Change the reading level on the articleSome people have blood that is shaped wrong. It looks like a tiny moon. These cells can get stuck in the body. This can cause a lot of pain. Doctors can help people feel better. Do you want to learn more?
Early Reader · Change the reading level on the articleMedicine helps you feel better. Sometimes, it does things you did not expect. These can be bad. They can also be good! Doctors watch for these changes. Do you take medicine to feel well?
Early Reader · Change the reading level on the articleThis is a jackal. It lives in Africa. It has stripes on its side. It eats many kinds of food. It can eat fruit and bugs. It is a very cool animal. Do you like jackals?
Early Reader · Change the reading level on the articleA long time ago, this animal lived in the sea. It had many legs. It used its legs to crush food. It ate things with hard shells. It was a hunter. Can you imagine living under the sea?
Early Reader · Change the reading level on the articleSome babies die in their sleep. This is very sudden. We do not know why it happens. It can help to keep babies safe. We can put babies on their backs to sleep. Do you know how to help a baby sleep well?
Early Reader · Change the reading level on the articleThe sifaka is a lemur. It lives in trees. It has long, soft fur. It eats leaves and fruit. These animals are special. Can you see them jump?
Early Reader · Change the reading level on the articleSome dogs hunt with their eyes. They are very fast. They have long legs to run. They have big hearts to help them move. These dogs love to run and play. Do you like to run fast too?
Early Reader · Change the reading level on the articleTiny parts of your body talk to each other. They send small messages. These messages tell the parts what to do. This helps your body grow and stay well. It is like a busy web of news. Can you imagine all that talking?
Early Reader · Change the reading level on the articleOur bodies tell us things. A sign is something a doctor sees. A rash is a sign. A symptom is something you feel. A headache is a symptom. How does your body feel today?
Early Reader · Change the reading level on the articleSika deer are pretty animals. They have white spots on their backs. These spots look like flowers. Some deer are big and some are small. They live in the woods. Do you like deer?
Early Reader · Change the reading level on the articleThese were small animals from long ago. They lived in many far places. Some ate bugs. Some ate leaves. They had long necks and legs. They could walk on four legs. Do you like old bones?
Early Reader · Change the reading level on the articleThe Silkie is a special chicken. Its feathers feel like soft silk. It has black skin and bones. These birds have five toes on each foot. They make great pets. Do you want to pet one?
Early Reader · Change the reading level on the articleLong ago, a special plant grew. People used it for food. It was also used as medicine. It was worth as much as gold. Now, the plant is gone. Do you think it was tasty?
Early Reader · Change the reading level on the articleThe silver carp is a fish. It lives in rivers. It eats tiny bits in the water. This fish can jump high. It can even jump out of the water! Can you see it jump?
Early Reader · Change the reading level on the articleA silverfish is a small bug. It is a shiny grey color. It moves like a fish in water. It likes to eat sugar and glue. It hides from the light. Can you find one in a book?
Early Reader · Change the reading level on the article