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 24 of 86
Brownie Wise sold kitchen tools. She held parties at homes. She showed how the tools worked. This helped the company grow fast. She was a very good leader. Do you like to host parties?
Early Reader · Change the reading level on the articleTrains run under the ground. They help people go to work. Many people use them every day. It is a fast way to travel. Do you like riding on trains?
Early Reader · Change the reading level on the articleSomeone tries to guess a secret code. They try every way to pick it. They try many, many times. This can take a long time. A long code helps keep you safe. It is hard to guess! Do you have a secret code?
Early Reader · Change the reading level on the articleA computer can try every way. It checks every choice one by one. It keeps looking until it finds the right one. This helps solve hard puzzles. It can take a long time. Do you like to try every way?
Early Reader · Change the reading level on the articleA bucket is a tool for you. It can hold water or food. It has a handle on top. You can carry it with ease. It keeps things inside. It is very helpful. Do you have a bucket at home?
Early Reader · Change the reading level on the articleThis is a long water path. It runs by the sea. It helps move big things. It can also stop big waves. This helps keep people safe. Do you like to see boats on water?
Early Reader · Change the reading level on the articlePeople plan how to build houses. They make a plan first. Some people are called architects. They help keep us safe. It is fun to dream of homes. What would you build?
Early Reader · Change the reading level on the articlePeople use many things to build. We use wood and rocks. We even use mud and grass. These things make our homes. They keep us safe and warm. What do you see your house made of?
Early Reader · Change the reading level on the articlePeople make many things. We build houses and roads. We also make farms for food. These things help us live. They are made by us. Do you see things people made?
Early Reader · Change the reading level on the articleA dozer is a big machine. It has a metal plate on the front. This plate pushes dirt or rocks. It can also use a big hook to break hard ground. It helps us build roads. Do you like big machines?
Early Reader · Change the reading level on the articleA bullet is a small part of a tool. It flies out of a gun. It can be made of metal or even wax. Bullets help people hit targets. Can you imagine how fast it goes?
Early Reader · Change the reading level on the articleA bulletin board holds news. You can pin notes to it. It can be made of cork. Some boards use magnets too. People use them to share things. It helps us see what is new. Do you have a board at school?
Early Reader · Change the reading level on the articleThis tool makes a hot flame. It uses gas to work. The flame helps heat things up. It is used in science labs. We use it to study. Do you like science?
Early Reader · Change the reading level on the articleA buoy is a floating thing. It stays in the water. Some stay in one place. Some float with the waves. They help boats stay safe. They can even show where fish traps are. Do you see them in the sea?
Early Reader · Change the reading level on the articleBurger King sells food. They sell burgers and fries. You can find them in many places. They have a big burger called a Whopper. It is a very famous food. Do you like burgers?
Early Reader · Change the reading level on the articleThis is a very tall hotel. It sits on its own island. The building looks like a big sail. It is in a place called Dubai. It is very pretty to see. Do you like tall buildings?
Early Reader · Change the reading level on the articleTrains run under the city of Busan. They go to many places. These trains help people move. They make travel easy for us. It is a big system. Do you like riding trains?
Early Reader · Change the reading level on the articleA computer bus is a path. It helps parts talk to each other. It moves information inside the machine. This helps your computer work well. It is like a tiny road for data. Can you find a computer?
Early Reader · Change the reading level on the articleA bus garage is a big home for buses. Buses sleep there at night. People fix them and wash them too. This helps buses stay ready for you. It is a busy place! Do you like riding the bus?
Early Reader · Change the reading level on the articlePeople run big shops and firms. They must plan and lead. This helps everyone work well. It helps the shop grow. Good leaders help their teams. Do you like to lead?
Early Reader · Change the reading level on the articleSome people write about money. They tell us how shops work. They write in books and on TV. This helps us learn about trade. It is good to know. Do you like to learn about money?
Early Reader · Change the reading level on the articleA business model is a plan. It helps a shop make money. It shows what they sell. It shows who buys it. This plan helps things work well. Do you have a plan for your toys?
Early Reader · Change the reading level on the articlePeople talk to make work friends. They meet in person or online. This helps them find new jobs. It also helps them learn new things. Making friends at work is good. Do you like meeting new people?
Early Reader · Change the reading level on the articleA businessperson runs a company. They sell things to make money. They use tools and help from people. This helps the world grow. They can earn a lot of money. Do you want to run a shop?
Early Reader · Change the reading level on the articleSpecial buses move very fast. They have their own lanes. This keeps them away from cars. People pay before they get on. This helps the bus move quickly. It helps us get where we go. Do you like to ride the bus?
Early Reader · Change the reading level on the articleA bus station is a big place. Buses stop here. People get on and off. It is much bigger than a bus stop. You can change buses there. It helps us travel far. Have you been to a bus station?
Early Reader · Change the reading level on the articleA bus stop is a place to wait. You go there to get on a bus. Some stops have a roof to keep you dry. They may even have a seat. It helps you stay safe. Do you like to ride the bus?
Early Reader · Change the reading level on the articleSome walls need help to stay up. Strong parts lean against the walls. They push back to keep them steady. This helps old buildings stay safe. It is a smart way to build. Can you see any strong walls?
Early Reader · Change the reading level on the articleBYD makes many cars. They make cars that use batteries. They also make big buses. These cars help our world. They are very popular now. Do you like electric cars?
Early Reader · Change the reading level on the articleThis is a long path for boats. It is in a place called Poland. It helps rivers join together. This helps boats move big things. It is very old. Do you like boats?
Early Reader · Change the reading level on the articleSometimes we make extra things. We make one thing on purpose. But something else comes out too. This extra thing can be useful. It can even be food. Can you find extra things at home?
Early Reader · Change the reading level on the articleComputers use special codes to work. These codes help programs run well. They can work on many machines. This helps us use many devices. It makes things fast for you. Do you like using computers?
Early Reader · Change the reading level on the articleComputers use special words to work. These words are called a language. One language is named C++. It helps people make video games. It can even help space probes work. Do you like playing games on a computer?
Early Reader · Change the reading level on the articleA cable car rides on a track. A big rope moves under the street. The car grabs the rope to move. This helps it go up hills. It is fun to ride! Do you want to ride one?
Early Reader · Change the reading level on the articleA bridge uses tall towers. Long ropes hold the road. These ropes go from the tower to the road. They keep the road up. This helps cars cross over water. Do you like big bridges?
Early Reader · Change the reading level on the articleComputers use many small notes. Each note has the same info. If one note changes, we fix the others. This keeps all the notes the same. It helps the computer work well. Do you like keeping things the same?
Early Reader · Change the reading level on the articleComputers use a special helper. It keeps things close by. This helps the computer work fast. It finds what it needs quickly. This makes your games run well. Do you like fast computers?
Early Reader · Change the reading level on the articleComputers keep things they use a lot. They keep them in a fast spot. When the spot is full, they must pick something to toss. They pick what they will not need soon. This helps the computer stay fast. Do you like to…
Early Reader · Change the reading level on the articleCadbury makes sweet treats. They make chocolate bars. They make eggs too. Many people like their food. It is a very big company. Do you like chocolate?
Early Reader · Change the reading level on the articleA special clock keeps time. It uses tiny parts to stay right. This helps us know the exact second. It is a very good clock. Can you imagine a clock that never misses a beat?
Early Reader · Change the reading level on the articleA cage is a box with bars. It can hold a pet. It can also keep things safe. Some cages let in light and air. This helps things inside stay well. Do you have a pet in a cage?
Early Reader · Change the reading level on the articleTrains run under the big city. They help many people move fast. Many people use these trains every day. They help you get to work or school. It is a great way to travel. Do you like train rides?
Early Reader · Change the reading level on the articleA caisson is a big box. It helps people build in water. It keeps the work area dry. This helps us build big bridges. It is very useful. Have you seen a bridge?
Early Reader · Change the reading level on the articleA man made a new drink. He owned a small shop. He mixed many things to make it. It became Pepsi. Many people like this drink. Do you like to drink soda?
Early Reader · Change the reading level on the articleThis is a long path for boats. It goes through Scotland. It connects two sides of the sea. Boats use it to travel safely. It has many big lakes. It is a very cool place. Do you want to see it?
Early Reader · Change the reading level on the articleComputers use rules to talk. One part asks another part to do a job. They must follow the same rules to work. This helps them share things. It is like a game with rules. Do you like games with rules?
Early Reader · Change the reading level on the articleCalouste was a man who helped find oil. He worked in many cities. He became very rich from his work. He used his money to help people. He built schools and hospitals. He even shared his art. Do you like to help others?
Early Reader · Change the reading level on the articleA caltrop is a small tool. It has sharp points. One point always faces up. It can pop a tire. It can also stop a horse. People use it to stay safe. Do you see the sharp points?
Early Reader · Change the reading level on the article