Saltwater fish
Saltwater fish live in the sea. They can swim alone. They can swim in a big group. Some fish eat plants. Some fish eat tiny shrimp. We can keep them in tanks. Do you like fish?
Early Reader · Change the reading level on the articleLife Science articles — Page 99
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 99 of 116
Explore related Science Lab activities about plants, animals and ecosystems or the human body, each at five reading levels.
Salvia hispanica
Chia is a small plant. It has tiny seeds. The seeds can soak up water. They get soft and gooey. You can eat these seeds for food. They are very good for you. Do you like seeds?
Early Reader · Change the reading level on the articleSalvia officinalis
Sage is a green plant. It has soft leaves. The leaves feel fuzzy. People use it in food. It can taste a little peppery. Do you like herbs in your food?
Early Reader · Change the reading level on the articleSalviniales
Some ferns live in the water. They can float on top. Some stay stuck in the mud. They grow very fast. These plants are quite special. Do you like to swim?
Early Reader · Change the reading level on the articleSamanea saman
The rain tree is very big. It looks like a large umbrella. It can give you shade. The leaves fold up when it rains. This lets the rain fall through. It is a pretty tree. Do you like big trees?
Early Reader · Change the reading level on the articleSambucus
The elder is a plant. It has small white flowers. It also has dark berries. Birds like to eat the berries. Some people use the plant in gardens. Do you like berries?
Early Reader · Change the reading level on the articleSamuel Hahnemann
Samuel was a doctor. He lived a long time ago. He liked to study. He found new ways to help people. He also liked to write books. Do you like to learn new things?
Early Reader · Change the reading level on the articleSandalwood
Sandalwood is a special tree. It has a very nice smell. People use the wood for many things. Some people make art from it. It is a very dear wood. Can you smell the trees?
Early Reader · Change the reading level on the articleSand dollar
A sand dollar lives in the sea. It hides under the sand. It has tiny spines to help it move. These spines can be purple or blue. When it dies, it turns white. It looks like a small coin. Can you find one at the beach?
Early Reader · Change the reading level on the articleSandfly
A sandfly is a tiny fly. It likes to live in sandy spots. It can bite you. This makes your skin feel itchy. It is a very small bug. Do you see them?
Early Reader · Change the reading level on the articleSandgrouse
Sandgrouse are birds that live in dry places. They have sandy colors. This helps them hide. They carry water in their feathers. This helps their babies drink. They are very smart. Do you like birds?
Early Reader · Change the reading level on the articleSan Diego Zoo
The San Diego Zoo is a big park. It has many animals. You can see monkeys and birds. Some animals live in places that look like home. It is a fun place to visit. Do you want to see the animals?
Early Reader · Change the reading level on the articleSand shark
The sand shark lives in the sea. It swims near the sandy bottom. It has long and sharp teeth. These teeth help it catch fish. It is a very cool shark. Have you seen a shark before?
Early Reader · Change the reading level on the articleSand tiger shark
The sand tiger shark lives in the sea. It has a pointy head. It has spots on its back. This shark can gulp air to float. It is a calm shark. Do you like sharks?
Early Reader · Change the reading level on the articleSapindaceae
Some plants are in a big group. They can grow as tall trees. Some make sweet fruit for us. They can even make soap! These plants live all over the world. Do you like sweet fruit?
Early Reader · Change the reading level on the articleSarcoma
Some sicknesses grow in the body. They can grow in bone or muscle. They can also grow in fat. This is a rare kind of sickness. It can happen to kids or adults. Have you ever felt a lump? Doctors help people feel better.
Early Reader · Change the reading level on the articleSarcosuchus
A giant crocodile lived long ago. It was very, very big. It lived in fresh water. It ate fish and dinosaurs. It is a huge animal! Can you imagine seeing one?
Early Reader · Change the reading level on the articleSARS
A tiny germ made people sick. It made it hard to breathe. Some people had a fever too. Doctors helped people get well. We can wash our hands to stay safe. Have you ever washed your hands with soap?
Early Reader · Change the reading level on the articleSARS-CoV-2
A tiny germ makes people sick. It can spread through the air. It moves when we cough or sneeze. This germ can travel from animals to us. It can make us feel unwell. We must stay safe. Do you know how to wash your hands?
Early Reader · Change the reading level on the articleSAR supergroup
Many tiny living things are in one big group. They live in the water. Some are very small. Some grow into big seaweed forests. They help our world. Can you find them in the sea?
Early Reader · Change the reading level on the articleSassafras
Sassafras is a special tree. It has many shapes of leaves. Some leaves look like mittens. Some look like three fingers. The tree smells very good. It can even make food taste great. Do you like trees that smell sweet?
Early Reader · Change the reading level on the articleSauria
Many animals are in this big group. They include birds and snakes. They also include turtles. These animals live in many places. We can see them today. Do you like these animals?
Early Reader · Change the reading level on the articleSaurischia
Some dinosaurs had special hips. These hips look like lizard hips. Some were big and ate plants. Some were meat eaters. Even birds come from this group! It is a big family. Do you like dinosaurs?
Early Reader · Change the reading level on the articleSauropsida
Some animals have lizard faces. They are reptiles. Birds are in this group too. This helps us learn about life. It is very cool! Do you like birds or lizards?
Early Reader · Change the reading level on the articleSavoy cabbage
This is a green cabbage. It has bumpy leaves. The leaves stay crunchy when you cook them. You can eat it in a warm soup. It can even grow in the snow! Do you like eating green food?
Early Reader · Change the reading level on the articleSawfly
A sawfly is a small insect. It looks a bit like a wasp. But it does not have a thin waist. The mother uses a tool to cut plants. She puts her eggs inside. The babies look like caterpillars. Do you like looking at bugs?
Early Reader · Change the reading level on the articleSawshark
The sawshark has a long nose. It looks like a saw. The nose has sharp teeth. It uses the nose to find food. This shark lives in the deep sea. Do you like sharks?
Early Reader · Change the reading level on the articleScalding
Hot water can hurt your skin. It can come from baths or drinks. Steam is also very hot. This can happen to kids a lot. We must be careful with heat. Do you stay safe near hot water?
Early Reader · Change the reading level on the articleScalp
The scalp is on your head. It is where your hair grows. It has skin and soft parts inside. It helps keep your head safe. Your hair grows from it. Do you have hair on your head?
Early Reader · Change the reading level on the articleScalpel
A scalpel is a tiny knife. It is very sharp. Doctors use it to help people. People also use it for art. It helps us stay well. Have you seen a sharp tool?
Early Reader · Change the reading level on the articleScansoriopterygidae
Some small dinosaurs liked to climb. They lived in big trees. They had long arms to help. Some could even glide in the air. They were as small as birds. Do you like to climb trees?
Early Reader · Change the reading level on the articleScapula
You have two shoulder blades. They are flat bones. They help your arm move. These bones connect to your collar bone. They also connect to your arm bone. These bones help you play. Can you feel your shoulder blades?
Early Reader · Change the reading level on the articleScar
A scar is a mark on your skin. It shows where you were hurt. Your body works to fix the cut. It makes new skin to patch the spot. This skin feels a bit different. Have you ever seen a scar?
Early Reader · Change the reading level on the articleScarabaeidae
Scarab beetles are small bugs. Many are black or brown. Some have bright colors. They use legs to dig in the dirt. Some eat plants or old leaves. They are very cool to see! Do you like beetles?
Early Reader · Change the reading level on the articleScelidosaurus
This was a dinosaur. It lived a long time ago. It had hard plates on its skin. These plates helped keep it safe. It liked to eat plants. Do you like dinosaurs?
Early Reader · Change the reading level on the articleScent hound
Some dogs hunt with their noses. They follow smells on the ground. These dogs often have long ears. Their ears help them smell better. They can walk for a long time. They are very good at finding things. Do you have…
Early Reader · Change the reading level on the articleSchinus
These are pepper trees. They grow in South America. Some trees make pink spice. This spice is used in food. They are very pretty to see. Do you like pink spice?
Early Reader · Change the reading level on the articleSchistosomiasis
{ "text": way to get sick is in fresh water. \nSmall worms live in snails. \nThey can get into your skin. \nThis can make your tummy hurt. \nIt can also make you itchy. \nWe can stay safe with clean water. \nHave you…
Early Reader · Change the reading level on the articleSchizomida
Small bugs called sprickets live in the dirt. They have a tiny tail. They use six legs to walk. They use two legs to feel things. These bugs like to stay wet. They hide under rocks or old logs. Do you want to find one?
Early Reader · Change the reading level on the articleSchizosaccharomyces pombe
This is a tiny living thing. It looks like a small rod. It lives in fruit and drinks. It helps make beer. It is very small. Can you find it?
Early Reader · Change the reading level on the articleSchönbrunn Zoo
This is a very old zoo. It is in a place called Vienna. Many animals live there. You can see giant pandas. It is a fun place to visit. Do you like animals?
Early Reader · Change the reading level on the articleSciadopitys
The umbrella pine is a tree. It lives in Japan. These trees lived a long time ago. They used to live in many places. Now we can see them. They are very special. Do you like trees?
Early Reader · Change the reading level on the articleSciatica
Some people have leg pain. It starts in the low back. The pain can shoot down the leg. It may feel like a shock. This can happen if you lift heavy things. Most of the time, it gets better with time. Have you ever had…
Early Reader · Change the reading level on the articleScientific misconduct
Some people do not tell the truth. They make up fake facts. They might take ideas from others. This can hurt science. We must be honest to learn. Do you like the truth?
Early Reader · Change the reading level on the articleScientific Reports
Some books share new science facts. They tell us about the world. Many people read them to learn. These books help us see things. It is fun to learn new things. Do you like to learn?
Early Reader · Change the reading level on the articleScientist
Some people study how the world works. These people are called scientists. They look at stars and plants. They help us learn new things. This helps everyone. Do you want to learn too?
Early Reader · Change the reading level on the articleSciurus
Many squirrels have big, bushy tails. They live in many places. Some live in North America. Others live in Asia. You might see one in a tree. They are very fun to watch. Do you like squirrels?
Early Reader · Change the reading level on the articleScleromochlus
This was a tiny animal. It lived a long time ago. It had very long back legs. It could hop like a frog. It was very small. We found its bones in rocks. Do you like to hop?
Early Reader · Change the reading level on the article