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 18 of 86
Some cars do not use gas. They use other things to move. Some use power from a plug. Others use special plant fuel. This helps keep our air clean. It is good for our world. Do you like electric cars?
Early Reader · Change the reading level on the articleSome news is made by small groups. They share stories that others might miss. This helps everyone be heard. It can be on a screen or paper. It makes our world a fair place. Do you like to share stories?
Early Reader · Change the reading level on the articleA tool tells how high things are. It shows how high a plane flies. This helps pilots stay safe. It is very helpful for us. It is a neat tool. Do you want to fly high?
Early Reader · Change the reading level on the articleThis is thin metal. It is very soft. You can bend it. It can wrap your food. We use it to keep food fresh. It is easy to use. Do you use it at home?
Early Reader · Change the reading level on the articleA metal can holds your food. It keeps things fresh. It is light and easy to use. You can even open it with your hands. We use many cans every day. Do you like soda in a can?
Early Reader · Change the reading level on the articleAlvah Roebuck was a man who sold things. He helped start a big store. He worked with watches and tools. He even helped make a new machine for typing. He was very busy. Do you like to shop?
Early Reader · Change the reading level on the articleAmancio Ortega makes clothes. He started a big shop called Zara. He learned to make clothes by hand. He helps people by giving money to doctors. He is a very busy man. Do you like to wear nice clothes?
Early Reader · Change the reading level on the articleA Kindle is a tool for reading. It holds many books inside. You can buy books on it. It can even play stories out loud. It helps you read anywhere. Do you like to read books?
Early Reader · Change the reading level on the articleSome companies use the internet for work. They use big groups of computers. These computers help them store things. They also help them do hard tasks. It is a fast way to work. Do you like using computers?
Early Reader · Change the reading level on the articleRadio sends sound through the air. It lets us hear news and music. People use it to listen to sports. It was made a long time ago. It still works today. Do you like to listen to the radio?
Early Reader · Change the reading level on the articleAMD makes tiny parts for computers. These parts help computers work. They are in laptops and games. They help you play and learn. AMD is a very big company. Do you use a computer?
Early Reader · Change the reading level on the articleAmerican Airlines is a big airline. It has many planes. They fly to many places. You can fly far away in them. They help people travel. Do you like to fly?
Early Reader · Change the reading level on the articleABC is a big TV group. It shows shows on your screen. It started a long time ago. It helps us see news and sports. We can watch it at home. Do you like to watch TV?
Early Reader · Change the reading level on the articleThe Amiga was a computer. It was good for games. It was also good for music. Many people used it at home. It was very special. Do you like to play games?
Early Reader · Change the reading level on the articleRadio waves carry sound to you. They change how big the wave is. This helps us hear voices. It can even send news. Do you like to listen to the radio?
Early Reader · Change the reading level on the articleTrains run under the city. They help people move fast. Some tracks are deep underground. You can ride them to see new places. It is a fun way to travel. Have you ever been on a big train?
Early Reader · Change the reading level on the articleThis is a long path of water. It helps big boats move. Boats carry things to the city. It is very busy there. We can see many bridges. Do you like big boats?
Early Reader · Change the reading level on the articleAmtrak is a big train company. It carries people across the land. The trains run on long tracks. They go to many cities. You can ride them to see new places. Do you like to ride trains?
Early Reader · Change the reading level on the articleAmy was a brave pilot. She flew a plane all by herself. She flew from England to Australia. This was a very long trip. She helped fly planes during a war. We can learn from her courage. Do you like planes?
Early Reader · Change the reading level on the articleSome machines use parts to solve problems. They use gears or wires to work. A clock uses gears to move hands. This helps us know things. It is a very smart way to work. Do you like machines?
Early Reader · Change the reading level on the articleThis machine makes music with power. It uses wires to make sound. You can turn knobs to change it. It can sound very cool. We use it to play songs. Do you like music?
Early Reader · Change the reading level on the articleOld TVs use waves to show pictures . These waves carry sound and color. Sometimes the picture looks snowy. This happens when the waves are weak. It helps us see shows. Do you like watching TV?
Early Reader · Change the reading level on the articleSome tools turn real things into numbers. They can turn sound into data. They can turn light into data too. This helps computers see and hear. It is very cool! Can you find a computer?
Early Reader · Change the reading level on the articleSome things change in small ways. A signal can move like a wave. It can grow or get small. This helps us hear sound. It can also show heat. It is like a smooth slide. Do you like smooth slides?
Early Reader · Change the reading level on the articleA man named Charles Babbage had a big idea. He wanted to build a machine to do math. It would use cards with holes in them. This machine would help us solve hard problems. It was a very smart plan. Do you like math?
Early Reader · Change the reading level on the articleAn anchor is heavy metal. It stays on the bottom of the sea. It keeps boats from moving. It can hook into the sand. It helps keep you safe. Do you like boats?
Early Reader · Change the reading level on the articleLong ago, people made many things. They used water to turn wheels. They made tools to move heavy things. They even made clocks with water. These tools helped them live well. Can you name a tool you use today?
Early Reader · Change the reading level on the articleLong ago, people built great things. They made strong roads and big walls. They used stone and special mud to build. These things still stand today. It is amazing to see! Can you find a stone wall?
Early Reader · Change the reading level on the articleLong ago, people made new tools. They made wheels to move things. Some made big stone towers. They also used metal for tools. This helped them live in new ways. It is so cool! Do you like old tools?
Early Reader · Change the reading level on the articleAnderson Cooper tells the news. He travels to many places. He talks to people on TV. He helps us know what is happening. He works very hard. Do you watch the news?
Early Reader · Change the reading level on the articleA tiny switch helps computers work. It needs all its parts to be on. If one part is off, the light stays off. This helps machines make choices. It is like a rule. Do you like rules?
Early Reader · Change the reading level on the articleAndré Citroën made cars. He lived in France. He used special gears for his cars. These gears helped cars work well. He started a big car company. Do you like cars?
Early Reader · Change the reading level on the articleAndrei made many planes. He worked on big planes. Some of them flew very far. His work helped people fly. He was a great builder. Do you like planes?
Early Reader · Change the reading level on the articleAndrew Forrest is a businessman. He works in Australia. He owns a big mining company. This company finds metal in the ground. He also helps people. He wants to help the Earth too. Do you like to help others?
Early Reader · Change the reading level on the articleAndy Grove was a smart man. He worked with tiny computer parts. These parts help computers work fast. He helped make many computers. His work helps us today. Do you like computers?
Early Reader · Change the reading level on the articleAndrew Ng helps computers learn. He teaches them how to think. He makes classes online for you. Many people use them to learn. He is a very smart man. Do you like computers?
Early Reader · Change the reading level on the articleAndrew Yao studies computers. He works at a big school. He learns how computers think. This helps us use tools. He won many big prizes. He is a smart man. Do you like computers?
Early Reader · Change the reading level on the articleAn android is a robot that looks like a person. It can move like we do. Some can even talk or blink. They can be made to look very real. They are very cool to see. Do you think a robot could be your friend?
Early Reader · Change the reading level on the articleThis is a very quiet room. It stops sounds from bouncing. No echoes live here. It can feel very still. It helps us test things. Can you be very quiet?
Early Reader · Change the reading level on the articleA long time ago, people found oil. This oil was deep in the ground. It was in a place called Persia. The oil helped ships move. It was very important for the world. Do you know what oil is used for?
Early Reader · Change the reading level on the articleMoving puppets are very cool. They use wires to move. They can look like people or animals. You can see them at theme parks. They can even be toys. Do you like moving puppets?
Early Reader · Change the reading level on the articleAnita Roddick was a kind leader. She started a shop for beauty things. She wanted to help the Earth. She also helped children in need. She gave her money to help others. Do you want to help the world too?
Early Reader · Change the reading level on the articleAnna Wintour loves clothes. She picks out what is cool to wear. She works for a big magazine. This helps people see new styles. She is a very famous leader. Do you like to pick out your clothes?
Early Reader · Change the reading level on the articleAnn Curry is a news reporter. She tells stories on TV. She goes to far places. She helps people learn about the world. Her work is very big. Do you like to watch the news?
Early Reader · Change the reading level on the articleMetal can get a new skin. This skin helps it stay strong. It can even take bright colors. This helps your tools look good. It keeps them safe too. Do you see bright metal tools?
Early Reader · Change the reading level on the articleMany people work together online. They do not use their real names. Some wear masks to hide. They want to change things. They work as one big crowd. Do you like to work in a group?
Early Reader · Change the reading level on the articleMany small antennas work as one. They send and catch signals. This helps us see TV. It can also help us talk. They work well together. Do you see antennas near your home?
Early Reader · Change the reading level on the articleA radio needs help to work well. This tool connects the radio to the antenna. It helps the power move smoothly. Without it, the radio might get too hot. It makes the radio much better. Do you want to hear a radio?
Early Reader · Change the reading level on the article