Arnold Ehret
Arnold Ehret lived a long time ago. He thought fruit was the best food. He said it helps the body stay clean. He told people to eat less to feel well. Do you like eating fruit?
Early Reader · Change the reading level on the articleLife Science articles — Page 36
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 36 of 116
Aromanticism
Some people do not feel romantic love. They can still have great friends. They can have many kinds of love. It is okay to be this way. We all feel love in our own way. Do you have a best friend?
Early Reader · Change the reading level on the articleArrhythmia
Your heart has a beat. Sometimes the beat changes. It can go too fast. It can go too slow. This can feel funny. Doctors can help fix it. Do you feel your heart beat?
Early Reader · Change the reading level on the articleArsinoitherium
A big beast lived long ago. It had two huge horns. It lived in green forests. It ate plants for food. It was like an elephant. Can you see its big horns?
Early Reader · Change the reading level on the articleArteriole
Small tubes carry blood in your body. These tubes help move blood along. They slow the blood down. This keeps your tiny tubes safe. It helps you stay well. Can you feel your heart beat?
Early Reader · Change the reading level on the articleArteriosclerosis
Your blood moves through tubes. These tubes can get stiff. Sometimes they get hard. This makes it tough for blood to flow. We can eat well to stay strong. Can you help your body stay healthy?
Early Reader · Change the reading level on the articleArthropathy
Sometimes our joints can hurt. Joints are where our bones meet. A joint might feel stiff. It might feel sore too. This can make it hard to move. We can see a doctor to help. Do your joints ever feel stiff?
Early Reader · Change the reading level on the articleArthropleura
A giant bug once lived long ago. It was like a very big millipede. It was as long as a car! It lived near water and trees. It was a very big creature. Can you imagine seeing one?
Early Reader · Change the reading level on the articleArthropod leg
Many small bugs have legs. These legs have many parts. They help bugs walk and move. Some legs even help them grab food. Each leg is built in a special way. Do you want to see them?
Early Reader · Change the reading level on the articleArthur Keith
Arthur Keith was a man who studied people. He looked at bones to learn about the past. He also found how the heart beats. He had some ideas that were not right. Do you like to learn about old bones?
Early Reader · Change the reading level on the articleAscariasis
Tiny worms can live in your belly. They get in through bad food. Some people do not feel sick. Others might have a tummy ache. Wash your hands with soap to stay safe. Do you like washing your hands?
Early Reader · Change the reading level on the articleAscaris lumbricoides
Some worms live in people. These worms are very long. They can hide in the soil. Tiny eggs get on food. We can eat them by mistake. This can make us sick. Do you wash your hands?
Early Reader · Change the reading level on the articleAscidiacea
Sea squirts live in the ocean. They stay on rocks. They suck in water to eat. They can squirt water out fast. It is fun to watch! Do you like the sea?
Early Reader · Change the reading level on the articleAsclepias
Milkweed is a special plant. It has white juice inside. Some bugs love to eat it. Monarch butterflies need it to grow. It helps them stay strong. Do you like looking at flowers?
Early Reader · Change the reading level on the articleAscus
Some fungi have tiny sacs. These sacs hold small seeds. They make many new seeds inside. The seeds fly out to grow. This helps the fungus spread. Can you find them in the woods?
Early Reader · Change the reading level on the articleAsian black bear
This bear has black fur. It has a white patch on its chest. It likes to climb trees. This bear lives in Asia. It is a very cool animal. Do you like bears?
Early Reader · Change the reading level on the articleAsian elephant
The Asian elephant is a very big animal. It lives in forests and grass. They have a long nose to eat food. They like to stay in groups. These animals are very smart. Do you like big animals?
Early Reader · Change the reading level on the articleAsian giant hornet
This is a very big hornet. It lives in many forests. It has an orange head. It has dark wings. It is a very large bug. Do you like to look at bugs?
Early Reader · Change the reading level on the articleAsian water monitor
This is a big lizard. It likes to swim in water. It can eat fish and frogs. It is very strong. It has sharp claws. Do you like lizards?
Early Reader · Change the reading level on the articleAsiatic linsang
The linsang is a small animal. It lives in Asia. It has spots or stripes on its coat. It has a very long tail. This animal looks a bit like a cat. We can learn so much about them. Do you like looking at spots?
Early Reader · Change the reading level on the articleAsiatic lion
The Asiatic lion lives in India. They have sandy fur. A fold of skin runs along their belly. The males have hair around their heads. These lions are very special. Do you like big cats?
Early Reader · Change the reading level on the articleAsiatic salamander
These are small salamanders. They live in Asia. They lay eggs in sacs. The parents help the babies. Some do not have lungs. They live in cool water. Can you find one?
Early Reader · Change the reading level on the articleAsparagaceae
Many plants belong to one big family. Some grow in your garden. Some live in your house. They can look very different. You might even eat some! Do you have a plant like this?
Early Reader · Change the reading level on the articleAsparagales
Many plants are in this big group. Some are tall trees. Some are small plants. You can eat onions and garlic. They also make pretty flowers. Many of these plants have dark seeds. Do you like flowers in your garden?
Early Reader · Change the reading level on the articleAsparagine
Small bits of food help us grow. These bits are in things like eggs and beans. Our bodies can even make them. They help our brains work well. It is a tiny part of life. Do you like eating asparagus?
Early Reader · Change the reading level on the articleAspartic acid
Our bodies need tiny bits to grow. These bits help build our parts. Your body can make them all by itself. They are in the food we eat. This helps us stay strong. Do you want to grow big?
Early Reader · Change the reading level on the articleAspergillus
Some molds are called Aspergillus. They live all over the world. They grow on bread and plants. Some help us make food. Some can make us sick. Can you find mold?
Early Reader · Change the reading level on the articleAsphyxia
Our bodies need air to live. We breathe air in and out. Sometimes, it is hard to get enough air. This can happen if something blocks our nose or mouth. We must always breathe well to stay strong. Do you know how you…
Early Reader · Change the reading level on the articleAspleniaceae
Some ferns are in a big group. They live in many places. Some grow on rocks. Some grow in the ground. They can even grow on trees. They look very pretty. Do you like ferns?
Early Reader · Change the reading level on the articleAstacus astacus
This is a noble crayfish. It lives in clean rivers. It likes to hide in holes. It eats plants and worms. It is a very special animal. Do you like to look at water?
Early Reader · Change the reading level on the articleAsterales
Some plants have many tiny flowers. They look like one big flower. These plants grow all over the world. You can eat some of them. We call them many things. Do you like to see flowers?
Early Reader · Change the reading level on the articleAsteriornis
A long time ago, a small bird lived. It had long legs. It lived by the sea. It looks a bit like a duck or a chicken. This bird was very special. Do you like birds?
Early Reader · Change the reading level on the articleAstigmatism
Some eyes are not round. They are shaped like an egg. This can make things look blurry. You can wear glasses to help. This makes things clear again. It is okay to have this. Do you wear glasses?
Early Reader · Change the reading level on the articleAtaxia
Sometimes our bodies feel shaky. It can make walking hard. It can make talking hard. It may even shake our eyes. This happens when our brain has trouble. We can still learn to help. Can you stay steady?
Early Reader · Change the reading level on the articleAtherosclerosis
Your blood moves through tubes. These tubes can get blocked. Fat can build up inside them. This makes it hard for blood to flow. It can make you feel sick. Do you eat healthy food?
Early Reader · Change the reading level on the articleAthlete's foot
Tiny germs can make feet itchy. They like warm and wet spots. This often happens between your toes. It can make your skin red. You can keep feet dry to stay safe. Do you keep your feet dry?
Early Reader · Change the reading level on the articleAtlantic canary
The wild canary is a small bird. It lives on islands in the sea. Most of them are green and brown. They like to eat seeds. They make a pretty song. Do you like to hear birds sing?
Early Reader · Change the reading level on the articleAtlantic cod
The Atlantic cod is a big fish. It lives in the cold ocean. It can be brown or green. Many people eat this fish for food. It is a very busy fish! Do you like to eat fish?
Early Reader · Change the reading level on the articleAtlantic herring
The herring is a small fish. It lives in the big ocean. These fish swim in huge groups. They eat tiny things in the water. Many big animals like to eat them. Can you find them in the sea?
Early Reader · Change the reading level on the articleAtlantic salmon
The Atlantic salmon is a big fish. It lives in rivers and the ocean. It swims in the cold water. This fish is very good to eat. We must help them stay safe. Do you like fish?
Early Reader · Change the reading level on the articleAtopic dermatitis
Some skin gets very itchy. It can look red and dry. It might feel sore too. This can happen to many people. It is not a germ. You cannot catch it. Does your skin ever feel itchy?
Early Reader · Change the reading level on the articleATPase
Tiny parts in your body make energy. They help things move inside you. This energy helps you live and grow. It is very important for all life. Can you feel your body working?
Early Reader · Change the reading level on the articleAtrial fibrillation
Your heart beats in a rhythm. Sometimes, it beats too fast. It may skip a beat. This can make you feel dizzy. It can make it hard to breathe. Doctors can help your heart. Does your heart feel fast?
Early Reader · Change the reading level on the articleAtrium (heart)
Your heart has two top rooms. These rooms catch your blood. They push the blood down. This helps your body work. It keeps you going! Can you feel your heart beat?
Early Reader · Change the reading level on the articleAtropa bella-donna
This is a plant called belladonna. It has dark berries. They look sweet. Do not eat them. They can make you very sick. Stay away from this plant. Can you find a safe berry instead?
Early Reader · Change the reading level on the articleAtrophy
Parts of your body can get smaller. This can happen if you do not move. It can also happen as you get old. Your muscles might get weak. This is okay if you exercise. Do you like to move your body?
Early Reader · Change the reading level on the articleAubrey de Grey
Aubrey de Grey is a scientist. He studies how we get old. He wants to help people stay healthy. He thinks new tools can help us live longer. This is a big idea. Do you want to live a long time?
Early Reader · Change the reading level on the articleAudiology
Some people help us hear well. They check our ears. They see if sounds are too soft. They can help us use tools to hear. This helps us listen to our friends. Do you like to listen to music?
Early Reader · Change the reading level on the article