Ichthyostega
This animal was like a fish. It lived in wet places. It had legs and fins. It could move on land. It was very special to see. Can you find its legs?
Early Reader · Change the reading level on the articleLife Science articles — Page 70
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 70 of 116
Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.
Ictonychinae
These small animals live far away. Some have dark marks on their faces. They can spray a bad smell to stay safe. This helps them hide from danger. It is a neat trick! Do you like small animals?
Early Reader · Change the reading level on the articleiguana
An iguana is a big lizard. It lives in warm places. It eats leaves and fruit. This helps plants grow. It is a cool animal to see. Do you like lizards?
Early Reader · Change the reading level on the articleIguanidae
Iguanas are big lizards. They live in warm places. They like to sit in the sun. Most of them eat plants. They have long tails. Do you like lizards?
Early Reader · Change the reading level on the articleIleum
Your body has a long tube inside. This tube helps you get food. It takes good things from your food. It keeps you strong. This part is at the end of the tube. Can you feel your tummy?
Early Reader · Change the reading level on the articleIlex aquifolium
Holly is a green plant. It has prickly leaves. It also has bright red berries. These berries help birds find food in winter. Some people use it for Christmas. Do you like seeing red berries?
Early Reader · Change the reading level on the articleIllicium verum
This is a star shaped spice. It comes from a tree. People use it to make food taste good. It can go in soup or tea. It smells very nice too. Do you like spices in your food?
Early Reader · Change the reading level on the articleImitation
You can copy what others do. You watch a person. Then you do the same thing. This helps us learn new ways to act. It is how we learn to talk. Do you like to copy your friends?
Early Reader · Change the reading level on the articleImmunity (medicine)
Your body has a way to stay well. It fights off bad things. It can learn to stop germs. This helps you stay strong. It is like a tiny shield inside you. Do you feel strong today?
Early Reader · Change the reading level on the articleImmunodeficiency
Our bodies have a way to stay safe. It fights germs to keep us well. Sometimes, this way does not work well. It can make us get sick more. We want our bodies to be strong. Do you feel healthy today?
Early Reader · Change the reading level on the articleImpacted wisdom teeth
Some teeth get stuck in your mouth. They are in your gums. They cannot grow in straight. This can hurt your mouth. A doctor can help you. Do you have teeth like this?
Early Reader · Change the reading level on the articleImpetigo
Some skin sores can be itchy. They often look like yellow scabs. These scabs can be on your face or arms. You can stay safe by washing your hands. It helps to keep cuts clean too. Do you wash your hands often?
Early Reader · Change the reading level on the articleIncertae sedis
Some living things are hard to group. Scientists find a new animal. They do not know its family yet. It is like a puzzle piece. We keep looking for clues. Can you help us find them?
Early Reader · Change the reading level on the articleIncision and drainage
Sometimes a bump forms under your skin. It can feel tight and sore. A doctor makes a tiny cut. This lets the bad stuff flow out. Now the skin can feel better. It helps you heal fast. Have you ever had a bump like that?
Early Reader · Change the reading level on the articleIncisivosaurus
This was a small dinosaur. It lived long ago in China. It had big teeth in the front. These teeth helped it eat plants. It may have had soft feathers too. Do you like dinosaurs?
Early Reader · Change the reading level on the articleIndex finger
This is your pointer finger. It sits by your thumb. You use it to show things. It helps you talk to friends. It is very good at moving. Can you point to something now?
Early Reader · Change the reading level on the articleIndian flying fox
This is a big bat. It lives in many places. It eats sweet fruit and flowers. This helps new trees grow. It is a very helpful friend. Do you like fruit?
Early Reader · Change the reading level on the articleIndian prawn
The Indian prawn is a small sea animal. It lives on the sandy sea floor. Many people catch them for food. Farmers also grow them in big ponds. They are very tasty! Do you like to eat shrimp?
Early Reader · Change the reading level on the articleIndian rhinoceros
The Indian rhino is very big. It has one horn on its nose. Its skin is thick and grey. It likes to eat green grass. It also loves to swim in water. Do you like big animals?
Early Reader · Change the reading level on the articleIndigofera
These are special plants. They grow in warm places. They can have red or purple flowers. Some plants make blue dye. People use the dye to color clothes. Can you find a blue shirt?
Early Reader · Change the reading level on the articleIndonesian coelacanth
This is a brown fish. It lives in the deep sea. It likes to hide in dark caves. This fish helps the ocean stay healthy. We must help keep it safe. Do you like deep sea fish?
Early Reader · Change the reading level on the articleIndri
The indri is a big lemur. It lives in the trees. It has black and white fur. It likes to eat leaves and fruit. The indri can sing loud songs. We can listen to them sing. Do you like to sing too?
Early Reader · Change the reading level on the articleInduced pluripotent stem cell
Scientists can change cells. They can make old cells new. These new cells can become anything. They can become heart cells. They can even become brain cells. This helps us stay well. Do you want to see more?
Early Reader · Change the reading level on the articleInfant formula
Some babies drink special milk. It comes in a can. You mix the powder with water. It helps babies grow. It can be fed in a bottle. Do you know a baby?
Early Reader · Change the reading level on the articleInfant mortality
Some babies die very young. This happens before their first birthday. Doctors work hard to help. They use clean water and medicine. This helps many babies stay well. Can we help more babies grow?
Early Reader · Change the reading level on the articleInfectious diseases (medical specialty)
Some doctors study germs. They find out what makes you sick. They find the best medicine for you. This helps you feel well again. It is a very big job. Do you want to be a doctor?
Early Reader · Change the reading level on the articleInfectious mononucleosis
Some germs can make you feel sick. They can make your throat hurt. They can make you feel very tired. It helps to rest and drink water. We can stay well by not sharing cups. Have you ever had a sore throat?
Early Reader · Change the reading level on the articleInfestation
Small bugs can live on you. They can live on your skin. Some bugs stay inside your body. They may be tiny worms. This can make you feel bad. It is good to stay clean. Have you seen a tiny bug?
Early Reader · Change the reading level on the articleInflammatory bowel disease
Sometimes our tummies get sick. They can feel very sore. This happens inside our gut. It can make us feel weak. Doctors help us feel better. We can eat good food. Do you take care of your tummy?
Early Reader · Change the reading level on the articleInfluenza A virus
A tiny germ causes the flu. It can live in birds and pigs. It can make people feel sick. You might cough or have a fever. We can use shots to stay well. Do you want to stay healthy?
Early Reader · Change the reading level on the articleInfluenza A virus subtype H5N1
Some birds get a bad flu. It can make them very sick. It spreads through bird droppings. Sometimes, people can get it too. Stay away from sick birds. It is good to be safe. Do you like birds?
Early Reader · Change the reading level on the articleInfluenza B virus
This is a tiny germ. It can make people sick. It can live in pigs and seals too. It makes us stay in bed. We use shots to stay safe. It is good to be healthy. Do you wash your hands?
Early Reader · Change the reading level on the articleInfluenza vaccine
A flu shot helps you stay well. It fights a bad bug. This bug can make you sick. The shot helps your body stay strong. It is good to get one every year. Do you want to stay healthy?
Early Reader · Change the reading level on the articleInfraspecific name
Plants have many special names. Some names are very long. They tell us about small groups of plants. These names help us know each plant. It is like a secret code. Do you want to see a plant?
Early Reader · Change the reading level on the articleIngrown nail
Sometimes a nail grows into your skin. This can make your toe hurt. It might look red and puffy. Tight shoes can cause this. You can cut your nails straight. This helps keep your toes happy. Have you ever had a sore toe?
Early Reader · Change the reading level on the articleInjection (medicine)
A shot helps you get well. It uses a tiny needle. The needle puts medicine in your body. It works fast to help you. You might feel a little sting. It is okay to be brave. Have you ever had a shot?
Early Reader · Change the reading level on the articleInkayacu
A long time ago, a big bird lived in the sea. It was a giant penguin. It had gray and brown feathers. This bird was very large. It looks like a king of the water. Do you like big birds?
Early Reader · Change the reading level on the articleInland taipan
The inland taipan is a snake. It lives in Australia. This snake has very strong venom. It helps the snake catch food. This snake is very shy. It likes to hide. Do you like snakes?
Early Reader · Change the reading level on the articleInnate immune system
Your body has a way to stay safe. It works like a wall. Your skin keeps bad things out. Tears wash your eyes too. It helps you stay well. Do you feel strong today?
Early Reader · Change the reading level on the articleInoculation
People can stay safe from sickness. Doctors can put tiny germs into a person. This helps the body learn to fight. It stops the bad sickness from growing. This keeps us all very healthy. Do you want to stay strong?
Early Reader · Change the reading level on the articleInostrancevia
A big animal lived long ago. It had very long teeth. It was a fast hunter. It lived near rivers. It was a very large creature. Can you imagine seeing it?
Early Reader · Change the reading level on the articleInsecticide
Some sprays kill bugs. They help farmers grow food. They can work in your garden too. These sprays keep plants safe. We use them to help us. Do you see bugs in your yard?
Early Reader · Change the reading level on the articleInsectivore
Some animals eat bugs. They can be big or small. Some plants eat bugs too! This helps them grow. It is a busy world. Can you find a bug?
Early Reader · Change the reading level on the articleInsect morphology
Insects are small animals. They have three body parts. They also have six legs. A hard shell protects them. This shell helps them stay safe. Do you like bugs?
Early Reader · Change the reading level on the articleInsect mouthparts
Insects have many ways to eat. Some bugs chew on food. Others suck up juice. A butterfly uses a long tube. A mosquito can pierce skin to eat. Each bug has a special mouth. It helps them find food. How do you eat your…
Early Reader · Change the reading level on the articleInsect wing
Insects have wings to fly. These wings are thin and light. Small lines help keep them strong. Some bugs use wings to move fast. It is fun to watch them fly! Do you like to watch bugs?
Early Reader · Change the reading level on the articleInsular biogeography
Some places are like islands. They are small and far away. Big islands have many kinds of life. Small islands have fewer kinds. This helps us save animals. Do you like to explore?
Early Reader · Change the reading level on the articleIntegrated pest management
Farmers want to keep plants healthy. They look for bugs in the fields. They do not want to kill all the bugs. Some bugs are good to have! They use traps or pick bugs by hand. This helps the earth stay safe. Do you…
Early Reader · Change the reading level on the article