Auditory cortex
Your brain helps you hear. It sits on the sides of your head. This part hears music and talk. It helps you know what sounds are. It is very special. Can you hear a song?
Early Reader · Change the reading level on the articleLife Science articles — Page 37
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 37 of 116
Augustin Pyramus de Candolle
Augustin loved plants. He studied many kinds of green leaves. He found a way to group them. This helps us learn about nature. It is very cool! Do you like plants too?
Early Reader · Change the reading level on the articleAugust Weismann
August Weismann was a man who studied life. He looked at how babies are like their parents. He found that what a body learns does not change its babies. This helps us know how life grows. Do you like to learn new things?
Early Reader · Change the reading level on the articleAura (symptom)
Sometimes people see strange things. They might see bright lights. They may hear odd sounds. This can happen in the brain. It helps us know what is wrong. It can be a warning sign. Have you ever seen a bright light?
Early Reader · Change the reading level on the articleAurelia (cnidarian)
Moon jellies are soft sea animals. They live in the big ocean. They look clear like glass. They have many short, thin arms. These arms do not sting much. They are very pretty to see. Do you like the ocean?
Early Reader · Change the reading level on the articleAuscultation
Doctors listen to your body. They use a tool to hear. They hear your heart beat. They hear your breath too. This helps them keep you well. It is a very special skill. Can you hear your own heart?
Early Reader · Change the reading level on the articleAustralian feral camel
Some camels live in the wild in Australia. They have one big hump. They can go a long time without water. They eat many plants. They can be mean to people. Do you like camels?
Early Reader · Change the reading level on the articleAustralian funnel-web spider
Some spiders live in Australia. They make homes in the ground. These spiders can be big. They have strong fangs. They are very fast. Do you like spiders?
Early Reader · Change the reading level on the articleAustralian magpie
This bird is black and white. It lives in many places. It can sing beautiful songs. We can see them in parks. They walk on long legs. Do you like to listen to birds?
Early Reader · Change the reading level on the articleAustralopithecus afarensis
Long ago, a group lived in Africa. They could walk on two legs. They ate many kinds of food. One famous one was named Lucy. She was very small. Do you want to see her bones?
Early Reader · Change the reading level on the articleAustralopithecus africanus
Long ago, people looked very different. Some lived in South Africa. They could walk on two legs. They ate seeds and nuts. They lived in forests and grass. It is fun to learn about them! Can you walk like them?
Early Reader · Change the reading level on the articleAustralopithecus anamensis
Long ago, a new group lived. They lived near a big lake. They could walk on two legs. They also climbed tall trees. They ate hard food. It is fun to learn about them! Do you like old bones?
Early Reader · Change the reading level on the articleAustralopithecus bahrelghazali
Long ago, a small group lived in Africa. They lived near a big lake. They ate plants and bugs. It is fun to learn about them. We find their old bones in the dirt. Do you like old bones?
Early Reader · Change the reading level on the articleAustralopithecus deyiremeda
A long time ago, a new relative lived. They lived in trees and grass. They had small teeth and strong jaws. They might have used stone tools. We found their old bones. Can you find them in the dirt?
Early Reader · Change the reading level on the articleAustralopithecus garhi
A long time ago, a new kind of person lived. They lived in a place called Ethiopia. They could walk on two legs. They could also climb trees. They may have used stone tools. This was a big surprise! Do you like to…
Early Reader · Change the reading level on the articleAustralopithecus sediba
A long time ago, a new kind of person lived. They lived in a cave in Africa. They ate fruit and leaves. They could walk like us. They could also climb trees. Do you want to learn more?
Early Reader · Change the reading level on the articleAustralorp
The Australorp is a special chicken. It comes from Australia. These birds lay many eggs. They are good mothers too. You can find them in many places. They are very helpful birds. Do you like chickens?
Early Reader · Change the reading level on the articleAustral storm petrel
These are tiny sea birds. They live on the big ocean. They eat small fish from the water. They fly in a funny way. They stay in the sea most of the time. Do you like birds?
Early Reader · Change the reading level on the articleAutonomic nervous system
Your body has a special system. It works even when you sleep. It keeps your heart beating. It helps you digest food. It helps you stay safe. It is very smart. Do you feel your heart beat?
Early Reader · Change the reading level on the articleAutophagy
Your tiny cells clean themselves. They take out old parts. Then they use the parts again. This helps you stay healthy. It is like a tiny recycling bin. Do you like to recycle?
Early Reader · Change the reading level on the articleAutotroph
Some living things make their own food. They use light from the sun. They also use air and water. This helps them grow. This food helps all other living things. It is a big job! Can you find a green plant?
Early Reader · Change the reading level on the articleAuxin
Plants have a special way to grow. A tiny helper moves through the plant. It tells the plant where to go. It helps stems turn toward the light. This helps the plant stay healthy. It is like a little guide. Can you…
Early Reader · Change the reading level on the articleAvian influenza
Bird flu is a sickness. It can make birds feel bad. It can make people feel bad too. Some birds stay healthy. Others get very sick. We must be careful around sick birds. Have you seen a duck lately?
Early Reader · Change the reading level on the articleAvocet
The avocet is a water bird. It has long, thin legs. Its beak curves up. This helps it find food in the mud. It can swim in the water, too. Do you like to watch birds?
Early Reader · Change the reading level on the articleAvulsion injury
Sometimes a part of the body gets torn. This can happen to skin or even a tooth. It can hurt a lot. Doctors help fix these parts. They use special tools to help you heal. Have you ever had a scrape?
Early Reader · Change the reading level on the articleAxiidea
These small sea animals live in the sand. They dig deep holes in the ocean floor. These holes are like tiny homes. They help the ocean stay healthy. You might see them in the sea! Do you like looking at sea life?
Early Reader · Change the reading level on the articleAxolotl
The axolotl is a water animal. It looks like a little fish. It has pink gills on its head. These help it breathe in the water. It can grow back lost parts. This is very cool! Do you like these water pets?
Early Reader · Change the reading level on the articleAxon
Your body has tiny wires. They send messages to your brain. These wires help you move. They also help you feel. They are very small. Can you feel your toes move?
Early Reader · Change the reading level on the articleAxonopus
This is a type of grass. It is called carpet grass. It grows in warm places. It can grow in water. This grass helps cover the ground. It is very tough. Do you like soft grass?
Early Reader · Change the reading level on the articleAye-aye
The aye-aye is a small animal. It lives in big trees. It has one very thin finger. It uses that finger to find food. This helps it eat bugs. Do you like looking at trees?
Early Reader · Change the reading level on the articleAzhdarchidae
Some flying animals lived long ago. They had very long necks. They also had long legs. Some were as big as a plane! They could walk on the ground too. Do you like big animals?
Early Reader · Change the reading level on the articleAziz Sancar
Aziz Sancar is a smart man. He studies how our bodies work. He found out how our tiny parts fix themselves. This helps us stay well. He even won a big prize! Can you learn how things work too?
Early Reader · Change the reading level on the articleAzolla
This is a tiny plant. It floats on top of water. It grows very fast. It helps rice plants grow. Farmers use it to help food grow. It can look like a red rug. Do you like to look at plants?
Early Reader · Change the reading level on the articleBabirusa
The babirusa is a strange pig. It lives on islands. The boys have long teeth. These teeth grow up and out. They look like big tusks. They help the boys fight. Do you think they are cool?
Early Reader · Change the reading level on the articleBacillota
Some tiny living things live in your gut. They can be round or like rods. Some are very tough. They can live in hard places. They help your body work. Do you have these tiny friends inside you?
Early Reader · Change the reading level on the articleBacillus anthracis
Some tiny germs can make animals sick. These germs live in the soil. They can sleep for a long time. They can wake up to grow. We can use medicine to help. Do you like learning about germs?
Early Reader · Change the reading level on the articleBacillus subtilis
Tiny living things live in the soil. They are shaped like small rods. They can move in water. These tiny things can make a hard shell. This shell helps them stay safe. Do you like to explore the dirt?
Early Reader · Change the reading level on the articleBacterial capsule
Some tiny germs have a coat. This coat acts like a shield. It helps the germ stay safe. It also helps it stick to things. This shield can make us sick. Can you imagine having a tiny coat?
Early Reader · Change the reading level on the articleBacterial cell structure
Tiny living things are called bacteria. They come in many shapes. Some are round. Some look like rods. They are very small. They have a hard wall to keep them safe. Can you find them?
Early Reader · Change the reading level on the articleBacteroides
Tiny bugs live in your tummy. They help you break down food. These bugs keep you healthy. They are very good helpers. We need them to work well. Do you have tiny bugs inside you?
Early Reader · Change the reading level on the articleBacteroides fragilis
Tiny bits of life live in your tummy. They help you get food from what you eat. These tiny bits are very good friends to us. They keep us healthy every day. Do you have tiny friends in your tummy too?
Early Reader · Change the reading level on the articleBacteroidota
Tiny living things live in many places. They live in the soil and the sea. Many live inside your belly. They help turn food into what you need. They are very small. Can you find them in the dirt?
Early Reader · Change the reading level on the articleBadger
A badger is a furry animal. It has a short body. It has short legs for digging. Badgers live in tunnels in the ground. They like to eat bugs and fruit. Do you like to dig in the dirt?
Early Reader · Change the reading level on the articleBagheera kiplingi
This is a special jumping spider. It lives in warm trees. Most spiders eat bugs. This spider eats plant parts for food. It is a very cool spider to see. Do you like spiders?
Early Reader · Change the reading level on the articleBaiji
The baiji was a river dolphin. It lived in a big river in China. It had a white fin. People used the river for many things. This made it hard for the dolphin to live. Now we may not see them anymore. Do you like…
Early Reader · Change the reading level on the articleBalance disorder
Sometimes we feel unsteady. It can feel like spinning. Your eyes and ears help you stay up. If they do not work well, you might wobble. This can happen to anyone. Do you feel steady today?
Early Reader · Change the reading level on the articleBalaur bondoc
This was a small dinosaur. It lived a long time ago. It had very strong legs. It was shaped like a little dragon. It lived on a big island. Do you think it was fast?
Early Reader · Change the reading level on the articleBaleen whale
Baleen whales live in the sea. They do not have teeth. Instead, they use hair in their mouths to catch food. This helps them eat small things in the water. They stay warm with fat. Do you like whales?
Early Reader · Change the reading level on the article