Explore inventions, engineering, computing and the tools people build to solve problems. Choose an article below; its reading controls let you move between the available levels.
4,107 public articles · Page 52 of 86
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Horses pull big carts. These carts carry heavy guns. They also carry boxes of supplies. This helps people move things. It is a hard job for the horses. Do you like big carts?
Early Reader · Change the reading level on the articleWe use skin to make leather. We soak the skin in a special mix. This helps take away hair and fat. It makes the skin thick and soft. This helps make good shoes and bags. It is a big job! Do you like wearing leather?
Early Reader · Change the reading level on the articleA limo is a very big car. A driver sits in the front. A wall stays between you and the driver. This helps you feel special. You can ride in a long one. Do you want to ride in a limo?
Early Reader · Change the reading level on the articleA motor helps things move. This motor moves in a straight line. It does not spin in a circle. It can push fast trains. It can even move roller coasters. It helps make things work well. Do you like fast trains?
Early Reader · Change the reading level on the articleSome parts of a plane can swap. They are made to move fast. If a part breaks, we fix it. We put a new part in. This helps the plane fly again. Can you imagine fixing a plane? It is a very smart way to work.
Early Reader · Change the reading level on the articleLine is a way to talk. You can send notes to friends. You can also call them. It works on phones and computers. It helps people stay close. Do you like to chat with friends?
Early Reader · Change the reading level on the articleThis is a long water path in China. It joins two big rivers. Boats can travel on it. It helps people move things. It is very old. Do you like to ride in a boat?
Early Reader · Change the reading level on the articleParts can move together. They use joints to move. Some parts slide or turn. This helps machines work. It can move big things. Do you see things that move like this?
Early Reader · Change the reading level on the articleLinkedIn is a place for work. You can find a job there. People use it to meet others. It helps you grow in your job. It is a big tool for work. Do you want to find a job?
Early Reader · Change the reading level on the articleA list can be like a chain. Each part holds a piece of info. It also has a link to the next part. This helps us find things. It is a smart way to work. Can you see how it works?
Early Reader · Change the reading level on the articleGas can turn into a liquid. It gets very, very cold. This makes the gas take up less space. It can travel on big ships. This helps send energy to us. Do you like to stay warm?
Early Reader · Change the reading level on the articleThis is a special gas. It can help us cook food. It can also help cars go. We keep it in metal tanks. It is very useful. Do you use gas to cook?
Early Reader · Change the reading level on the articleLisa Su is a smart leader. She helps make computer parts. She likes to see how things work. She fixes things at home. Now she helps a big company. Do you like computers too?
Early Reader · Change the reading level on the articleLisp is a way to talk to computers. It helps computers do smart things. People use it to study how computers think. It is very old and still used today. It is a special tool for us. Do you want to learn more?
Early Reader · Change the reading level on the articleYou can play games on your TV. These machines are called consoles. You plug them in at home. You use a controller to play. Some use small cards for games. Others use discs. Do you like to play games?
Early Reader · Change the reading level on the articleThese are special batteries. They hold power for us. They help phones work. They help cars go. They are very useful. Do you use one today?
Early Reader · Change the reading level on the articleThis is a special battery. It helps power your tools. It can be many shapes. It makes things like phones work. It is very light. Do you use one every day?
Early Reader · Change the reading level on the articlePeople use a special way to print. It uses oil and water. They do not mix. You can see this on books and maps. It helps us make many pages. Do you like to draw?
Early Reader · Change the reading level on the articleYou can watch videos as they happen. This is called live streaming. You can see people play games. You can watch sports too. You can even talk to the person on the screen. It is a fun way to see the world. Do you…
Early Reader · Change the reading level on the articleA loader is a big machine. It has a big bucket on the front. It scoops up dirt or sand. Then it moves the dirt to a truck. This helps people build things. Have you seen one work?
Early Reader · Change the reading level on the articleWe use power in many ways. Sometimes we use a lot at once. Other times we use a little. Using power in a steady way helps. It can help keep costs low. Can you think of things that use power?
Early Reader · Change the reading level on the articleSome plants make power for us. They change how much they make. They work more when we use lights. They work less at night. This helps keep our power steady. Do you turn off your lights at night?
Early Reader · Change the reading level on the articleWe use a lot of power. Sometimes too much power is used at once. We can turn off some things to help. This keeps the lights on for everyone. It is a smart way to work. Can you help save power?
Early Reader · Change the reading level on the articleA lobster trap is a tool. It catches lobsters in the sea. Fish is put inside to help. The trap sits on the sea floor. It helps people find food. Do you like eating lobster?
Early Reader · Change the reading level on the articleA locker is a small box. It keeps your things safe. You can find them at school. They use a lock to stay shut. This helps you keep your bag private. It is a handy tool. Do you have a locker?
Early Reader · Change the reading level on the articleThis is a big plane. It can land on dirt. It carries many people. It also carries heavy things. It helps people all over the world. Do you like big planes?
Early Reader · Change the reading level on the articleThis is a big plane. It has four engines. It can fly high in the sky. It flies above the bad weather. This makes trips safe and easy for you. It is a very cool plane. Do you like planes?
Early Reader · Change the reading level on the articleA big company makes planes. They build things for space too. They make tools for the government. These tools help keep us safe. It is a very big job. Do you like planes?
Early Reader · Change the reading level on the articleThis is a fast jet. It flies high in the sky. It can land in many ways. Many countries use it. It is a very smart plane. Do you like planes?
Early Reader · Change the reading level on the articleThe Blackbird is a special plane. It flies very high. It is also very fast. This helps it stay safe. We can see it in museums now. Do you like fast planes?
Early Reader · Change the reading level on the articlePeople cut down trees for wood. They move logs to make things. We use wood for houses and paper. It helps us build our world. It is a big job. Do you like using things made of wood?
Early Reader · Change the reading level on the articleSmall parts help computers think. They act like tiny switches. These switches turn on or off. They help make every computer work. They are very small. Can you find a computer?
Early Reader · Change the reading level on the articleComputers can use rules to think. They use facts to solve problems. This helps them learn new things. It is like a smart game. We can teach them how to act. Do you like smart games?
Early Reader · Change the reading level on the articleLondon Bridge goes over a river. It helps people cross the water. Many bridges stood here long ago. Some were made of wood. Some were made of stone. Now we have a new bridge. It is made of steel. Do you like bridges?
Early Reader · Change the reading level on the articleThe London Eye is a giant wheel. It sits by a big river. It spins very slowly. You can see the whole city from up high. It is a fun place to visit. Would you like to ride it?
Early Reader · Change the reading level on the articleA longbow is a tall bow. It is made of wood. People used them a long time ago. They help shoot arrows. It is a very cool tool. Do you like to play with bows?
Early Reader · Change the reading level on the articleA long gun has a long tube. You use two hands to hold it. You rest it on your shoulder. This helps you aim well. It is heavy to carry. Do you see the long tube?
Early Reader · Change the reading level on the articleFishermen use very long lines. These lines have many hooks. The hooks have food on them. This helps catch big fish. It can catch other animals too. We must help the sea. Do you like fish?
Early Reader · Change the reading level on the articleThis is a big sword. It has a long handle. You use two hands to hold it. It was used a long time ago. It helps a person fight. Do you like old stories?
Early Reader · Change the reading level on the articleL'Oréal is a big company. It makes things to help you look nice. They make hair color and soap. They also make makeup. They help people all over the world. Do you like using soap?
Early Reader · Change the reading level on the articlePeople use fake words to design pages. These words do not mean anything. They help us see how a page looks. This way, we do not get stuck on the story. It makes work easy for us. Do you like to draw?
Early Reader · Change the reading level on the articleMany smart people work at a big lab. It is in a place called New Mexico. They study many things like space and medicine. This work helps keep us safe. It is a very busy place. Do you like science?
Early Reader · Change the reading level on the articleLAX is a big place for planes. It is in California. Many people fly there to go on trips. It helps us see the world. Do you like to fly in planes?
Early Reader · Change the reading level on the articleThe Los Angeles Times is a news paper. It tells people what is happening. It has been around a long time. It helps us learn about our world. Do you like to read the news?
Early Reader · Change the reading level on the articleArtists make metal art. First, they make a shape from wax. Then, they cover it in a hard shell. The heat melts the wax away. Hot metal fills the empty space. Now the art is done! Can you make something with wax?
Early Reader · Change the reading level on the articleLotfi Zadeh was a smart man. He studied how computers think. He helped machines learn to be more like us. This helps computers solve hard problems. His work helps us every day. Do you like computers?
Early Reader · Change the reading level on the articleLouella was a famous writer. She wrote about movie stars. Many people read her stories. She lived in Hollywood. She knew many secrets. Do you like movies?
Early Reader · Change the reading level on the articleLouis was a man who loved cars. He was very good at fixing them. He even helped start a car company. Many people drive his cars today. He was a fast racer, too. Do you like fast cars?
Early Reader · Change the reading level on the article