Meiolania
This was a big turtle. It lived on islands long ago. It had horns on its head. It had a tail with spikes. These helped it stay safe. Can you imagine a horned turtle?
Early Reader · Change the reading level on the articleLife Science articles — Page 80
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 80 of 116
Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.
Mekosuchus
This was a small crocodile. It lived a long time ago. It walked on the land. It did not swim in big lakes. This animal is very cool to see. Do you like crocodiles?
Early Reader · Change the reading level on the articleMelanie Klein
Melanie Klein was a smart woman. She studied how kids feel. She watched how babies play with toys. She found out that play tells us a lot. This helps us understand kids. Do you like to play with toys?
Early Reader · Change the reading level on the articleMelastomataceae
Some plants have very cool leaves. These leaves have lines on them. The lines run from the bottom to the top. They can be small bushes or big trees. Bees like to visit their flowers. Do you like looking at leaves?
Early Reader · Change the reading level on the articleMelon
A melon is a sweet fruit. It can be many colors. Some are green and some are yellow. You can eat the juicy parts. They taste very good! Do you like to eat melons?
Early Reader · Change the reading level on the articleMelvin Calvin
Melvin Calvin was a smart man. He studied how plants work. He found how plants make food from the air. This helps all living things. He won a big prize for his work. Do you like plants?
Early Reader · Change the reading level on the articleMembrane potential
Tiny parts in your body act like batteries. These parts use a little power. This power helps your cells work. It can even send signals. This helps you move and think. Can you feel your body working?
Early Reader · Change the reading level on the articleMembrane protein
Tiny parts live in your cells. They help cells work well. They move things in and out. They also help cells talk. These parts help keep you healthy. Do you want to learn more?
Early Reader · Change the reading level on the articleMembrane transport
Tiny cells have a thin skin. This skin lets things in and out. It picks what can pass through. This helps the cell stay healthy. It is like a tiny door. Do you wonder how it works?
Early Reader · Change the reading level on the articleMenhaden
Menhaden are small silver fish. They swim in big groups. They eat tiny things in the water. Many big fish and birds eat them too. They help keep the sea healthy. Can you find a silver fish?
Early Reader · Change the reading level on the articleMeninges
Your brain has a soft cover. It keeps your brain safe. It also holds a special liquid. This liquid helps your brain work. It is like a warm blanket for your head. Do you feel safe inside your head?
Early Reader · Change the reading level on the articleMephitidae
Skunks are animals with a strong smell. They use this smell to stay safe. It helps them hide from big animals. Some live in the Americas. Others live far away. They are very neat to see. Can you spot a skunk?
Early Reader · Change the reading level on the articleMergini
These ducks live near the sea. They like cold water. Some ducks eat fish. Their bills help them hold fish. They can dive deep down. Do you like to swim?
Early Reader · Change the reading level on the articleMergus
These are special ducks. They love to swim and dive. They use long bills to catch fish. The bills have tiny teeth to help. They look very cool in the water. Do you like to see ducks?
Early Reader · Change the reading level on the articleMerlangius
This is a fish called whiting. It lives in the deep sea. Its body can be blue or green. It has a white belly. Many people eat this fish for food. It is a cool fish to see! Do you like fish?
Early Reader · Change the reading level on the articleMerycoidodontoidea
These animals lived long ago. They looked a bit like pigs. Some were big like cows. They liked to eat plants. They lived in big groups. Do you like old bones?
Early Reader · Change the reading level on the articleMesite
These are small birds from a far land. They live in woods and bushes. They eat seeds and bugs. They stay on the ground. They make many loud songs. Can you hear their song?
Early Reader · Change the reading level on the articleMesocarnivore
Some animals eat meat and plants. They eat things like bugs and fruit. They also eat small mice. This helps the land stay healthy. These animals are very busy. Do you like foxes or raccoons?
Early Reader · Change the reading level on the articleMesonychia
Long ago, strange animals lived on Earth. They had hooves on their feet. Some were small like a fox. Others were big like a bear. They were very strong. They lived a long time ago. Can you imagine a bear with hooves?
Early Reader · Change the reading level on the articleMesonychidae
Long ago, there were strange animals. They had hard hooves on their feet. They ate meat and fish. These animals lived in Asia and North America. They are gone now. Can you find their bones in a book?
Early Reader · Change the reading level on the articleMesoplodon
These are small whales. They live in the deep sea. They have big teeth. They like to eat squid. We are still learning about them. Do you like whales?
Early Reader · Change the reading level on the articleMesosaurus
This was a small lizard. It lived in the water. It had webbed feet to swim. It ate small things in the sea. It lived a long time ago. Can you swim like a lizard?
Early Reader · Change the reading level on the articleMesothelae
These are very old spiders. They live in parts of Asia. They have eight eyes. They make silk in the middle of their bodies. These spiders have been around for a long time. Do you like spiders?
Early Reader · Change the reading level on the articleMesothelioma
A sickness can grow inside the body. It can grow near the lungs. It can grow near the belly. This sickness comes from a dust called asbestos. It can take a long time to start. Do you know about this dust?
Early Reader · Change the reading level on the articleMesotherm
Some animals are in the middle. They make some heat inside. They do not stay the same heat. They change when it is cold. A big shark is one. Do you like sharks?
Early Reader · Change the reading level on the articleMessenger RNA
Small parts in your body carry news. They tell your body how to grow. This news helps make things you need. It works like a tiny map. It tells your cells what to do. Do you want to learn more?
Early Reader · Change the reading level on the articleMetabolomics
Our bodies make tiny things. These small things show how we work. They leave a little mark like a fingerprint. This helps us see if we are healthy. It is very cool! Do you want to learn more?
Early Reader · Change the reading level on the articleMetacarpal bones
The bones in your palm are strong. They sit between your wrist and your fingers. These bones help your hand move. They make your palm shape. They help you grab things. Can you feel your palm bones?
Early Reader · Change the reading level on the articleMetagenomics
Scientists look at tiny life. They study life in the dirt or sea. They do not grow it in a lab. This helps them find hidden life. It is a big job! Can you find tiny things?
Early Reader · Change the reading level on the articleMetanephrops challengeri
This is a pink lobster. It lives in the sea. It has long, thin claws. It lives in a deep hole. It is very pretty. Do you like pink?
Early Reader · Change the reading level on the articleMetastasis
Bad cells can move. They start in one spot. Then they travel to new spots. They can go in your blood. This can make you sick. Do you want to learn more?
Early Reader · Change the reading level on the articleMetatarsal bones
You have five long bones in your foot. They sit in the middle of your foot. These bones help you walk. They are between your ankle and your toes. These bones help you stand up. Can you feel your foot?
Early Reader · Change the reading level on the articleMethanobacteriati
Tiny life lives in many places. Some live in very hot water. Some live in very salty water. They can live in the soil too. These tiny things help the world. Can you find them in the dirt?
Early Reader · Change the reading level on the articleMethanobacterium
Tiny living things make gas. They live in places with no air. Some live in warm soil. Some live in cows. This gas helps the earth. Do you want to learn more?
Early Reader · Change the reading level on the articleMethionine
Your body needs tiny bits of food. These bits help build you. They help make your body work. You get them from meat and eggs. We need them to stay strong. Do you eat healthy food?
Early Reader · Change the reading level on the articleMethoxychlor
People once used a spray to kill bugs. It helped plants and pets stay safe. Now, we do not use it. It can be bad for animals and us. It stays in the ground for a long time. Do you like bugs?
Early Reader · Change the reading level on the articleMethylene blue
This is a special blue dye. It can help sick people feel better. Doctors use it as a medicine. It can even turn your pee blue! It is very useful. Do you like the color blue?
Early Reader · Change the reading level on the articleMetriorhynchidae
These were sea animals. They looked like crocodiles. But they lived in the sea. They had flippers to swim. They could not walk on land. They were very fast swimmers. Can you swim like them?
Early Reader · Change the reading level on the articleMetroxylon sagu
The sago palm is a tall tree. It grows in wet, swampy woods. It makes food for people to eat. We use it to make noodles and bread. This tree helps us stay full. Do you like noodles?
Early Reader · Change the reading level on the articleMichael Baden
Michael Baden is a doctor. He looks for clues about how people die. He works on many big cases. This work helps people learn the truth. He is very well known. Do you like learning about clues?
Early Reader · Change the reading level on the articleMichael DeBakey
Michael DeBakey was a great doctor. He helped many sick people. He made tools to fix hearts. He even used a sewing machine to help. His work helped us stay well. Do you want to be a doctor?
Early Reader · Change the reading level on the articleMichio Kushi
Michio Kushi was a teacher. He lived in Japan and America. He talked about special food. He wrote many books. He wanted to help people stay well. Do you like healthy food?
Early Reader · Change the reading level on the articleMicrobial ecology
Tiny living things are everywhere. They live in the dirt and water. Some help plants grow big. Others can make us sick. We study how they live together. It is a big world! Can you find them?
Early Reader · Change the reading level on the articleMicrobiological culture
Scientists grow tiny living things. They use special food to help them grow. This can be in a liquid or on a jelly. This helps us learn about them. It can even help us stay well. Do you want to see them grow?
Early Reader · Change the reading level on the articleMicrobiome
Tiny living things live everywhere. They live in the ocean. They live on plants. They even live on you! Most of them help us stay healthy. We need them to live well. Do you have tiny friends living on you?
Early Reader · Change the reading level on the articleMicrodictyon
A long time ago, a small worm lived. It looked like a caterpillar. It had hard plates on its back. These plates were like a net. The plates helped it stay safe. Do you think it was fast?
Early Reader · Change the reading level on the articleMicroevolution
Living things can change over time. These changes happen in small groups. Some changes help them live well. These small changes help life grow. It is very cool to see. Can you find changes in nature?
Early Reader · Change the reading level on the articleMicroraptor
This was a small dinosaur. It had feathers on its arms. It even had feathers on its legs! These helped it glide through the air. This tiny animal lived long ago. Do you like dinosaurs?
Early Reader · Change the reading level on the article