Sphagnum
This is a special moss. It can hold a lot of water. It grows in wet places. This helps many other plants live there. It is very helpful to our world. Do you like soft moss?
Early Reader · Change the reading level on the articleLife Science articles — Page 26
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 26 of 116
Spider
Spiders are small animals with eight legs. They live all over the world. Many spiders make silk webs. These webs help them catch food. They are very busy hunters. Can you find a spider outside?
Early Reader · Change the reading level on the articleSpider monkey
Spider monkeys live in the trees. They have very long arms. They use their tails like a hand. They like to eat fruit. This helps them stay strong. Do you like to climb trees?
Early Reader · Change the reading level on the articleSpinach
Spinach is a green plant. It has big leaves. We eat the leaves in salads. Some people cook them in soup. It helps us stay healthy. Do you like to eat green leaves?
Early Reader · Change the reading level on the articleSpinal column
Your backbone is a tall stack of bones. It helps you stand up straight. It also keeps your body safe. The bones protect your parts inside. It is very strong. Can you feel your backbone?
Early Reader · Change the reading level on the articleSpinal cord
Your body has a long cord. It goes down your back. It sends messages to your brain. This helps you move your arms and legs. It keeps you safe. Can you feel your back?
Early Reader · Change the reading level on the articleSpitz
Some dogs are called spitz. They have thick, warm fur. Their tails curl over their backs. They have pointy ears and faces. These dogs love to play. Do you like fluffy dogs?
Early Reader · Change the reading level on the articleSpleen
The spleen is a small part of you. It is inside your belly. It helps clean your blood. It also helps you stay well. It is a very busy helper! Do you have a spleen too?
Early Reader · Change the reading level on the articleSponge
Sponges are sea animals. They stay in one place. They do not swim. They pull in water to find food. This helps them grow. They are very old. Do you like the ocean?
Early Reader · Change the reading level on the articleSprat
Sprats are small fish. They swim in big groups. They are very active all day. These fish are good for you to eat. They have good fats inside. Do you like fish?
Early Reader · Change the reading level on the articleSpruce
A spruce is a tall tree. It has green leaves. These leaves look like needles. They stay on the tree all year. People use the wood for paper. Some trees are used for Christmas. Do you like trees?
Early Reader · Change the reading level on the articleSquid
A squid is a sea animal. It has a soft body. It has eight arms. It has two long arms too. It can change its color. It can hide in the sea. Do you like the ocean?
Early Reader · Change the reading level on the articleSquirrel
Squirrels are small animals with bushy tails. They live in many places. Some live in trees. Some live on the ground. They like to eat nuts and seeds. They are very busy! Can you spot a squirrel?
Early Reader · Change the reading level on the articleStaphylococcus aureus
Tiny germs live on your skin. They look like little gold balls. They often live in your nose. Most of the time they are okay. But sometimes they make you sick. Do you wash your hands?
Early Reader · Change the reading level on the articleStarch
Plants make starch to save food. It is in corn and potatoes. We eat it every day. It helps us grow strong. It is very useful. Do you like eating corn?
Early Reader · Change the reading level on the articleStarfish
Starfish live in the big ocean. They look like a star. Most have five arms. They can be red, blue, or brown. Some can even grow a new arm! Do you like the sea?
Early Reader · Change the reading level on the articleStarling
Starlings are small birds. They have shiny feathers. They can copy many sounds. They fly in big groups. This helps keep them safe. Do you like to hear birds sing?
Early Reader · Change the reading level on the articleStegosaurus
Stegosaurus was a big dinosaur. It had plates on its back. It had spikes on its tail. These helped it stay safe. It ate green plants for food. It was very large. Can you imagine seeing one?
Early Reader · Change the reading level on the articleStem cell
Some tiny cells can change. They can become many things. They can turn into skin or blood. These cells help your body grow. They are very special. Can you imagine being able to change?
Early Reader · Change the reading level on the articleStephen Jay Gould
Stephen Gould loved old bones. He studied fossils to learn about life. He taught many students at a big school. He wrote many books about nature. He loved to learn new things. Do you like to look at fossils?
Early Reader · Change the reading level on the articleSteroid
Some tiny things help our bodies work. They are in plants and animals. They even help our cells stay strong. These things help us grow. We need them to be well. Do you want to learn more?
Early Reader · Change the reading level on the articleStethoscope
A doctor uses a tool to hear. It helps them hear your heart. It can hear your lungs too. This helps the doctor keep you well. It is a very helpful tool. Can you hear your heart beat?
Early Reader · Change the reading level on the articleStickleback
The stickleback is a small fish. It lives in the sea and lakes. Some have hard plates on them. They eat tiny bugs. The dads build nests from weeds. They are very busy fish! Do you like fish?
Early Reader · Change the reading level on the articleStinger
Some bugs have a sharp part. It is called a stinger. It can give a bug a way to hurt. This can make your skin red. It might feel itchy. We must be careful. Have you ever seen a bee?
Early Reader · Change the reading level on the articleStingray
Stingrays are flat fish. They live in the sea. Some live in rivers too. They hide in the sand. This helps them stay safe. They have mouths on their bellies. Do you like fish?
Early Reader · Change the reading level on the articleStoat
The stoat is a small animal. It lives in many places. It has a long body. In winter, it turns white. This helps it hide in snow. It is very fast. Do you like small animals?
Early Reader · Change the reading level on the articleStoma
Leaves have tiny mouths. These mouths help the plant breathe. They let air in and out. They also let water out. This helps the plant stay healthy. Can you find a leaf?
Early Reader · Change the reading level on the articleStomach
Your stomach helps you eat. It is inside your body. It breaks down your food. This makes food ready for you. It helps you stay well. Do you feel hungry?
Early Reader · Change the reading level on the articleStork
Storks are big birds. They have long legs. They have long necks too. They eat fish and frogs. Many storks fly to warm places. They build very large nests. Do you like birds?
Early Reader · Change the reading level on the articleStramenopile
Some tiny things have stiff hairs. These hairs help them move. Some are big like seaweed. They live in the water. They are very cool to see. Do you like the sea?
Early Reader · Change the reading level on the articleStrawberry
Strawberries are bright red fruits. They grow on small plants. They taste very sweet. We can eat them fresh. You can also have them in jam. Do you like strawberries?
Early Reader · Change the reading level on the articleStrepsirrhini
Some animals have wet noses. They live in trees. They use their noses to smell well. They can see in the dark too. These animals are very special. Do you like to look at animals?
Early Reader · Change the reading level on the articleStress (biology)
Your body feels stress. It happens when things change. Your heart may beat fast. This helps you stay safe. It is okay to feel this way. Do you feel stress sometimes?
Early Reader · Change the reading level on the articleSturgeon
Sturgeons are special fish. They live in rivers and seas. They have hard plates on their skin. These fish can live a long time. They help us learn about the past. Do you like fish?
Early Reader · Change the reading level on the articleSuffering
Sometimes we feel bad. This can be in our body. It can be in our minds too. It might feel like being very sad. We can help each other feel better. Have you ever felt a little sad?
Early Reader · Change the reading level on the articleSugar beet
A sugar beet is a plant. It grows a big white root. This root holds sweet food. We use it to make sugar. It helps make the treats we eat. Do you like sweet things?
Early Reader · Change the reading level on the articleSulidae
These are sea birds. They dive into the sea. They dive to catch fish. This helps them find food. They are very fast. Do you like birds?
Early Reader · Change the reading level on the articleSunbird
Sunbirds are small, bright birds. They live in warm places. They love to drink sweet juice from flowers. This juice is their food. They help many plants grow. Can you see their bright colors?
Early Reader · Change the reading level on the articleSurprise (emotion)
Surprise is what you feel when things change fast. It happens when things are not what you thought. It can be a good feeling. It can also be a bad feeling. Your eyes may get very wide. Have you ever been surprised?
Early Reader · Change the reading level on the articleSwallow
Swallows are small birds. They fly very well. They catch bugs in the air. This is how they find food. They live all over the world. Do you like to watch birds fly?
Early Reader · Change the reading level on the articleSwallowtail butterfly
Swallowtail butterflies are big and bright. They live in many places. Some live on high mountains. Some live in warm woods. They have pretty wings. Do you like bright colors?
Early Reader · Change the reading level on the articleSwamp
A swamp is a wet forest. It has trees and bushes. The ground is very wet. Swamps help clean our water. They also stop floods. They are very special. Do you like the water?
Early Reader · Change the reading level on the articleSwan
Swans are big birds. They swim in the water. They have long necks. Many swans are white. Some swans are black. They stay with one mate. Do you like swans?
Early Reader · Change the reading level on the articleSweet potato
The sweet potato is a plant. It grows big roots in the dirt. These roots taste sweet. They can be orange or purple. We eat them for food. They help us stay strong. Do you like sweet potatoes?
Early Reader · Change the reading level on the articleSwift (bird)
Swifts are birds that love to fly. They are very fast in the air. They catch bugs while they fly. This helps them stay full. They can live almost anywhere. Do you like to watch birds fly?
Early Reader · Change the reading level on the articleSwordfish
The swordfish is a big fish. It has a long nose. The nose looks like a sword. It swims in the deep ocean. It can be very fast. Do you want to see it swim?
Early Reader · Change the reading level on the articleSymbiogenesis
Small living things once joined together. They lived inside each other. This helped them grow. Now, plants and we are made this way. It is a big way that life works. Can you imagine living inside a friend?
Early Reader · Change the reading level on the articleSymbiosis
Living things live together. Some help each other. This is good for both. Some hurt one friend. This is not good. Nature is full of friends. Do you see friends in nature?
Early Reader · Change the reading level on the article