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 47 of 86
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Big roads meet in special ways. These ways help cars move fast. Some roads go over other roads. This keeps cars from stopping. It helps you get where you are going. Do you like to ride in a car?
Early Reader · Change the reading level on the articleBig buses take people far away. They go from city to city. They do not stop very much. This helps you get home fast. They are very comfy for long trips. Do you like bus rides?
Early Reader · Change the reading level on the articleThese are very fast trains. They run in a place called Germany. They go to many cities. They help people travel far. These trains are very smooth. Do you like fast trains?
Early Reader · Change the reading level on the articleSome trains go from city to city. They travel a long way. They do not stop at every place. This helps you get there fast. They have nice seats for you. Do you like long train rides?
Early Reader · Change the reading level on the articleBig wires link towns together. They carry power from one place to another. Some wires go under the sea. This helps us share power. It helps us use clean energy too. We can help each other. Do you use lights at home?
Early Reader · Change the reading level on the articleSome roads go over or under water. These roads use big bridges. They also use long tunnels. They help us reach far places. You can drive or ride a train. It is like a path that never ends. Do you like long trips?
Early Reader · Change the reading level on the articleA long rocket can fly very far. It can travel across the world. It moves very fast. These rockets help keep countries safe. We use them to learn about space, too. Do you like looking at the stars?
Early Reader · Change the reading level on the articleSome planes fly far away. They fly low to the ground. This helps them stay safe. They stop things from moving. This helps us stay safe. It is a big job. Do you like planes?
Early Reader · Change the reading level on the articleA shipping container is a big metal box. It carries things all over the world. It can go on a ship or a truck. It can even go on a train. This helps move toys and food to you. Do you like new things?
Early Reader · Change the reading level on the articleYou can use many ways to travel. You can ride a bus. Then you can ride a train. This helps you get to new places. It is a fun way to go! Do you like trains?
Early Reader · Change the reading level on the articleMany airlines work together. They follow the same rules. This helps keep flying safe. It also helps with tickets. This group helps people fly around the world. Do you like to fly in planes?
Early Reader · Change the reading level on the articleA big group helps us talk. They help us use phones. They help us use the web. This helps us stay close. It is a very old group. Do you like to talk to friends?
Early Reader · Change the reading level on the articleThe Internet Archive is a big library. It is on the computer. It saves many books and songs. It helps us see old websites too. This helps everyone learn things. Can you find something old on it?
Early Reader · Change the reading level on the articleThis was a way to see the web. It lived on computers. Many people used it a long time ago. Now we use new tools to see the web. It was a big part of computer history. Do you use the web?
Early Reader · Change the reading level on the articleAn internet forum is a place to talk. People write messages to each other. They can talk about games or music. It helps us learn from new friends. It is a fun way to share. Do you like to talk online?
Early Reader · Change the reading level on the articleYour computer gets mail from a big computer. It keeps your mail in a safe place. You can see your mail on many tools. This helps you stay in touch. It is very helpful. Do you like to send mail?
Early Reader · Change the reading level on the articleMany things can talk to each other. They use the web to send news. A heater can talk to a phone. This helps your home stay cozy. It can even help doctors help you. Do you have a smart toy?
Early Reader · Change the reading level on the articleComputers use a special way to talk. This helps them send notes. It uses a code to find where to go. It sends bits of info to your friend. This makes the web work for you. Can you use the web?
Early Reader · Change the reading level on the articleSome companies help you get online. They use wires to send data. This helps you see things on a screen. We use these tools every day. It is like a road for information. Do you like to go online?
Early Reader · Change the reading level on the articleA computer program can run in many ways. One way is to use a helper. This helper reads the code. Then it tells the computer what to do. This helps the code work on many machines. Do you like computers? Can you name a…
Early Reader · Change the reading level on the articleRoads meet at a place called an intersection. This is where roads cross. Some roads meet in a T shape. Lights tell cars when to go. They help keep us safe. Do you see many roads meet near you?
Early Reader · Change the reading level on the articleBig roads go across our land. They help us travel far. These roads are very long. They help us get to new places. We use them to drive. Do you like long car rides?
Early Reader · Change the reading level on the articleThese are fast trains. They use power from wires. They run on tracks. They go between towns. They help people travel. Do you like trains?
Early Reader · Change the reading level on the articleA group can have its own web. It helps people work together. They can share news and files. It keeps their work safe. This makes jobs much easier. Do you use a web at school?
Early Reader · Change the reading level on the articleYou talk to yourself in your head. You can think about your day. You can plan what to do next. This helps you learn and grow. It is like a secret chat. Do you talk to yourself too?
Early Reader · Change the reading level on the articleA big company makes computer tools. These tools help people with money. They help with taxes and small shops. It helps many people every day. Do you use a computer to learn?
Early Reader · Change the reading level on the articleStores keep things to sell. They keep food or toys. They also keep parts to make new things. This helps when people want to buy. It is good to have enough. Do you like to shop?
Early Reader · Change the reading level on the articleThis tool flips things. It changes one thing to its opposite. If you give it a one, it gives a zero. If you give it a zero, it gives a one. This helps computers work. It is a tiny building block. Can you find a computer?
Early Reader · Change the reading level on the articleSome people look for the truth. They find secrets that are hidden. They work for a long time. This work helps keep us safe. It tells us what is real. Do you like to find secrets?
Early Reader · Change the reading level on the articleA special engine helps ships fly in space. It uses power to push gas out. This push moves the ship forward. It is very slow but it lasts a long time. It helps us explore the stars. Can you imagine flying in space?
Early Reader · Change the reading level on the articleThese are very big ships. They can go fast on the sea. They help the Navy. Now they are museums. You can visit them! Do you want to see a big ship?
Early Reader · Change the reading level on the articleThe iPad is a small computer. It has a screen you can touch. You can use it to learn. It helps people at work and school. It is very popular. Do you like to use tablets?
Early Reader · Change the reading level on the articleComputers use special numbers to talk. These numbers act like a home address. They tell the web where to find you. This helps us send notes to friends. It is how we stay joined. Do you use a computer?
Early Reader · Change the reading level on the articleThe iPod was a small tool. It played music for you. You could carry many songs in your pocket. It helped people listen to songs anywhere. It was a very popular thing to own. Do you like to listen to music?
Early Reader · Change the reading level on the articleComputers use special numbers to talk. These numbers help them find each other. They work like home addresses. This helps us use the web. It is very cool! Do you use a computer?
Early Reader · Change the reading level on the articleComputers need names to talk. These names help them find each other. We used to run out of names. Now we have many more. This helps everyone stay connected. It is very helpful! Do you use the internet?
Early Reader · Change the reading level on the articlePeople use IRC to talk online. You can type to many friends. You can also talk one-on-one. It uses text to send words. This helps us share news fast. It is a fun way to chat. Do you like to chat online?
Early Reader · Change the reading level on the articleAn ironclad is a strong ship. It has a metal skin. This metal helps keep the ship safe. It is much stronger than wood. These ships use steam to move. They do not need wind. Can you see the metal?
Early Reader · Change the reading level on the articleThis is a type of strong pottery. It is used for plates and bowls. It was made in a place called England. It helps people eat their food. It is very tough. Do you like to use plates?
Early Reader · Change the reading level on the articleIsamu Akasaki was a smart man. He helped make blue lights. These lights help us see. They use very little power. This helps our world. Do you like blue lights?
Early Reader · Change the reading level on the articleEvery book has a special number. This number is just for that book. It helps us find the right one. It works for paper books and e-books too. Do you like to read books?
Early Reader · Change the reading level on the articleThis is how TVs work. It sends shows through the air. It can send shows to phones, too. This helps you see bright pictures. It is very cool! Do you like watching TV?
Early Reader · Change the reading level on the articleAl-Jazari was a clever man. He made many cool machines. He made clocks that used water. He even made moving toys. His work helps us today. Do you like machines?
Early Reader · Change the reading level on the articleA disc holds many files. It uses a special rule. This rule helps computers find things. It works on many machines. This helps us share our work. Do you like using discs?
Early Reader · Change the reading level on the articleTrains run under the city. They carry many people. Some lines are on one side of the water. Some lines are on the other side. The trains help us move fast. It is a big system. Do you like trains?
Early Reader · Change the reading level on the articleiTunes is a tool for music. It helps you find songs. It can keep your music in one place. You can use it on a computer. It helps you listen to your favorite tunes. Do you like to listen to music?
Early Reader · Change the reading level on the articleITV is a way to watch TV. It shows many shows for free. You can see news and fun things. It helps us see what is happening. Do you like to watch TV?
Early Reader · Change the reading level on the articleIvan Sutherland worked with computers. He made new ways to see pictures on them. He helped make tools for drawing. These tools help us today. He is a great thinker. Do you like computer games?
Early Reader · Change the reading level on the article