Leaellynasaura
This was a small dinosaur. It lived in Australia long ago. It ate plants from the ground. It had a very long tail. This dinosaur was very cool. Do you like dinosaurs?
Early Reader · Change the reading level on the articleLife Science articles — Page 75
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 75 of 116
Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.
Leaf beetle
Leaf beetles are small bugs. They live on plants. Some are bright red or blue. They like to eat leaves and flowers. This helps them grow. Can you find one in a garden?
Early Reader · Change the reading level on the articleLeafcutter ant
Leafcutter ants are tiny farmers. They cut green leaves. They take leaves to their homes. They use the leaves to grow food. This food helps the ants live. Do you like to farm?
Early Reader · Change the reading level on the articleLeaf vegetable
Leafy greens are plant leaves we eat. You can eat them in a salad. You can cook them too. They help us stay healthy. They are very good for you. Do you like to eat greens?
Early Reader · Change the reading level on the articleLeafy seadragon
This fish looks like seaweed. It lives in the sea. It has long bits on its body. These bits help it hide. It is a very special fish. Can you see it?
Early Reader · Change the reading level on the articleLeanchoilia
Leanchoilia lived in the sea. It lived a long time ago. It had long arms like whips. It had four eyes on its head. These eyes were under a hard shell. It was a small sea creature. Can you find its eyes?
Early Reader · Change the reading level on the articleLeatherback sea turtle
The leatherback is a big sea turtle. It has soft skin on its back. It does not have a hard shell. This helps it swim in deep water. It is a very large animal. Do you like sea turtles?
Early Reader · Change the reading level on the articleLecanorales
Many tiny things grow on trees. They look like moss. They are a type of fungus. These things help the earth. They are very special. Can you find them outside?
Early Reader · Change the reading level on the articleLeedsichthys
A giant fish lived in the sea. It was very, very big. It ate tiny bits of food from the water. This fish lived a long time ago. It was a huge sea friend. Do you think it was big?
Early Reader · Change the reading level on the articleLeghorn chicken
These birds come from Italy. They have bright yellow legs. Many of them are white. They lay many white eggs. This helps us have food. Do you like eggs?
Early Reader · Change the reading level on the articleLegionella
Tiny things live in water and soil. They can hide in small water drops. Some people breathe these drops in. This can make people feel sick. Most people stay healthy. Can you find water in your home?
Early Reader · Change the reading level on the articleLegionella pneumophila
Tiny germs live in water. They hide in pipes and showers. We can breathe them in. This can make us sick. A doctor can help you. Do you like to play in water?
Early Reader · Change the reading level on the articleLegionnaires' disease
Some tiny germs live in water. They can hide in big pipes. Breathing in wet mist can make you sick. This makes it hard to breathe. It can also give you a fever. Doctors use medicine to help you feel better. Have you…
Early Reader · Change the reading level on the articleLegless lizard
Some lizards have no legs. They look like snakes. They have eyes and ears. They also have long tails. These animals move on the ground. It is fun to see them. Can you find a legless lizard?
Early Reader · Change the reading level on the articleLegume
Legumes are special plants. They grow seeds we can eat. We eat beans and peas. They help the soil stay good. They are good for you. Do you like beans?
Early Reader · Change the reading level on the articleLeicester Longwool
This is a special sheep. It has thick, wavy wool. It comes from a place called England. This sheep helps us get meat and wool. We must help them stay safe. Do you like soft wool?
Early Reader · Change the reading level on the articleLeishmaniasis
Tiny flies can make you sick. They bite your skin. This can cause a sore. Some sores stay for a long time. You can sleep under a net to stay safe. Do you like to sleep under a net?
Early Reader · Change the reading level on the articleLeland H. Hartwell
Lee Hartwell is a scientist. He studied tiny living things. He found how cells make copies of themselves. This work helps us learn about sickness. He won a very big prize for his work. Do you like to learn new things?
Early Reader · Change the reading level on the articleLemming
A lemming is a small animal. It lives in the cold snow. It eats green grass and plants. It digs tunnels to stay safe. It stays busy all winter. Do you like the snow?
Early Reader · Change the reading level on the articleLemnoideae
Tiny green plants float on water. They live in ponds. They are very small. Fish and birds eat them. They help keep water clean. They are cool to see! Can you find them?
Early Reader · Change the reading level on the articleLena Delta Wildlife Reserve
The Lena Delta is a big place. It is in a cold land. Many birds live there. Swans and ducks like to swim. Fish also live in the water. It is a good home for them. Can you see the birds?
Early Reader · Change the reading level on the articleLens (vertebrate anatomy)
Your eye has a clear part. It helps you see things. It works like a tiny camera. This part helps you see clearly. It even grows as you grow! Can you see with your eyes?
Early Reader · Change the reading level on the articleLeo Kanner
Leo Kanner was a doctor. He helped many children. He learned how some kids think. He wanted to help them. His work was very good. Do you like to help friends?
Early Reader · Change the reading level on the articleLeopard seal
The leopard seal lives in the cold. It swims in the ice. It eats fish and penguins. This seal is very big. It helps us learn about the sea. Do you like seals?
Early Reader · Change the reading level on the articleLepas anatifera
Some sea life lives on floating wood. They have long, soft stalks. They look like little shells. These shells can stick to ships or turtles. They travel far in the sea. Do you want to find one?
Early Reader · Change the reading level on the articleLeper colony
Some people lived in special towns. These towns were for sick people. They stayed away from others. This helped keep people safe. Now, doctors have new ways to help. People can stay in their own homes. Do you know a…
Early Reader · Change the reading level on the articleLepidodendron
Long ago, scale trees grew tall. They lived in wet places. Their bark had diamond shapes. These shapes looked like scales. They were very big plants. Do you like big trees?
Early Reader · Change the reading level on the articleLepospondyli
Long ago, many small animals lived. Some looked like snakes. Some looked like lizards. They lived in water or on land. They help us learn about life. Do you like old animals?
Early Reader · Change the reading level on the articleLeptin
Your body has a special way to tell you when to eat. Small parts of your body send a signal to your brain. This signal says you have enough food. It helps you feel full. Do you feel full after a big meal?
Early Reader · Change the reading level on the articleLeptospirosis
Tiny germs can make us sick. They live in water and soil. Animals like rats can spread them. The germs get in through your skin. You can wash your hands to stay safe. Do you like playing in the water?
Early Reader · Change the reading level on the articleLeptosporangiate fern
Many ferns are in this big group. They live all over the world. Some grow on trees. They have tiny parts to make new plants. This helps them grow. Do you like ferns?
Early Reader · Change the reading level on the articleLeptostraca
Small sea bugs live in the ocean. They are very tiny. They use their legs to find food. They have a hard shell too. These bugs help the sea. Do you like looking at sea life?
Early Reader · Change the reading level on the articleLesser florican
This bird lives in tall grass. It is a small bird. The male jumps high in the air. He makes a loud sound. We must help these birds. Can you see them in the grass?
Early Reader · Change the reading level on the articleLeucine
Your body needs special food to grow. This food helps make your muscles. You can find it in beans and meat. It is very important for you. Do you like eating beans?
Early Reader · Change the reading level on the articleLiana
A liana is a long plant. It grows on big trees. It climbs up to find sun. It makes paths for monkeys. These paths help animals move. Do you see vines in trees?
Early Reader · Change the reading level on the articleLibellula
These are bright dragonflies. They have colorful wings. They live near water. They like to sit on sticks. We can see them fly! Do you like bright colors?
Early Reader · Change the reading level on the articleLibellulidae
These are many types of dragonflies. They live all over the world. Some have bright colors. Some have stripes on their wings. You can see them fly near you. They can stay very level in the air. Do you like to see…
Early Reader · Change the reading level on the articleLife extension
People want to live a long time. Doctors study how to help us. They want to keep us healthy. They hope to fix our bodies. This might help us live longer. Do you want to live a long time?
Early Reader · Change the reading level on the articleLigand (biochemistry)
Tiny bits join together. They stick like glue. This helps your body work. It sends a signal. It can change a shape. Can you see how they fit?
Early Reader · Change the reading level on the articleLight-dependent reactions
Sunlight helps plants make food. The sun gives them energy. This energy helps them grow. It also makes the air we breathe. We need plants to live. Do you like the sun?
Early Reader · Change the reading level on the articleLightheadedness
Sometimes your head feels funny. It might feel light or spin. You may feel like you might fall. This can happen if you need water. It can happen if you stand up too fast. It is okay to sit down. Have you ever felt…
Early Reader · Change the reading level on the articleLigia
Small bugs live on rocky beaches. They like wet air. They stay near the sea. They do not like dry sand. These bugs help the coast. Can you find one on a rock?
Early Reader · Change the reading level on the articleLignin
Plants have something strong inside. It is in the wood and bark. It helps the plant stand up tall. It also helps water move. This makes the plant strong. Can you find a tree?
Early Reader · Change the reading level on the articleLimb (anatomy)
Your arms and legs are limbs. They help you move. You can walk or run. You can also grab things. Limbs help you do so much! Do you like to run and play?
Early Reader · Change the reading level on the articleLimnognathia
This is a tiny water animal. It lives in cold water. It has very small jaws. It uses them to eat. It is too small to see. Can you find it in a pond?
Early Reader · Change the reading level on the articleLimousin cattle
Limousin cows come from France. They are big and strong. Long ago, they helped farmers work. Now, they are raised for food. Many people around the world love them. Do you like cows?
Early Reader · Change the reading level on the articleLimpet
A limpet is a sea snail. It has a shell like a small dish. It lives on hard rocks. It uses a strong foot to hold on tight. This helps it stay safe from waves. Can you find one at the beach?
Early Reader · Change the reading level on the articleLimpkin
The limpkin is a big bird. It lives in wet places. It likes to eat snails. It has a long beak to help it eat. This bird makes a loud sound. Can you hear it scream?
Early Reader · Change the reading level on the article