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 77 of 86
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A phone number is like an address. It tells the system where to go. You dial the numbers to call a friend. It helps you talk to people far away. It is a very smart way to talk. Do you know your home number?
Early Reader · Change the reading level on the articleTV ads tell you about things. They show toys or food. Companies pay to show them. This helps pay for TV shows. You might see them while watching. Do you like watching ads?
Early Reader · Change the reading level on the articleA TV lets you see and hear things. It shows moving pictures. It also has loud speakers. You can watch shows at home. It is fun to watch! Do you like to watch TV?
Early Reader · Change the reading level on the articleA TV station sends shows to you. It uses big towers. These towers send signals through the air. You can watch shows on your screen. It is fun to watch! Do you like to watch TV?
Early Reader · Change the reading level on the articlePeople study how we watch TV. They look at many shows. They see how shows are made. They study how shows help us. This work is very fun. Do you like to watch TV?
Early Reader · Change the reading level on the articleA TV studio is a big room. It is where shows are made. People use cameras and lights there. This helps us see the show. It is a fun place to work. Do you like to watch TV?
Early Reader · Change the reading level on the articleA tenaille is a wall for a fort. It looks like a pair of tongs. This wall helps keep people safe. It hides the gates from view. It helps guards walk out to the ditch. Do you like old forts?
Early Reader · Change the reading level on the articleTencent is a big company. It makes many fun games. It also makes ways to talk to friends. This helps people all over the world. Do you like to play games on a phone?
Early Reader · Change the reading level on the articleQQ is a way to talk online. It helps people chat. You can play games too. It also has music. This helps friends stay close. Do you like to chat with friends?
Early Reader · Change the reading level on the articleA terrace is a flat place outside. It can be near a house. It can even be on a roof. You can sit or walk there. It is a nice spot to rest. Would you like to sit on one?
Early Reader · Change the reading level on the articleTV can come through the air. A station sends out a signal. You use an antenna to catch it. This helps you watch shows at home. It is very cool! Do you have an antenna?
Early Reader · Change the reading level on the articleTesla makes cars that run on power. They make big batteries too. These cars help our world stay clean. They use power instead of gas. It is very cool to see them go. Do you like fast cars?
Early Reader · Change the reading level on the articleSpecial radios help people talk. They help police and fire teams. These radios work in many places. They keep people safe. Can you help a hero?
Early Reader · Change the reading level on the articleA man made a way to print books. It helps make math look good. It works on many computers. It makes books easy to read. It is a special tool for science. Do you like to read books?
Early Reader · Change the reading level on the articleA text file is a computer file. It holds words in lines. You can use it to save notes. It helps you keep your ideas. It is very simple to use. Do you like to write notes?
Early Reader · Change the reading level on the articlePeople put pretty colors on cloth. They use tools to make shapes. Some use wood blocks. Others use screens. This makes patterns on your clothes. It looks very nice! Do you like patterns?
Early Reader · Change the reading level on the articleThe TGV is a fast train. It runs in France. It moves very, very fast. It helps people travel to big cities. It is a great way to go! Do you like fast trains?
Early Reader · Change the reading level on the articlePeople make roofs from dry plants. They use straw or leaves. The plants stay dry. This keeps the house warm. It is a very old way to build. Do you like straw roofs?
Early Reader · Change the reading level on the articleThe Age is a big paper. It tells news every day. It has been around a long time. It helps us know what is happening. Do you like to read the news?
Early Reader · Change the reading level on the articleA man wrote big books. These books teach about computers. They show how to use them well. They help people learn a lot. This work is very special. Do you like computers?
Early Reader · Change the reading level on the articleThis is a big news paper. It comes from Japan. It is very old. People read it to learn news. It helps us know what is happening. Do you like to read the news?
Early Reader · Change the reading level on the articleThe Atlantic is a magazine. It tells stories about many things. It has been around for a long time. It helps us learn about our world. It is very interesting to read. Do you like to read stories?
Early Reader · Change the reading level on the articleThe Boston Globe is a newspaper. It tells stories about people. It is very old. It started a long time ago. It helps us know what is happening. Do you like to read news?
Early Reader · Change the reading level on the articleThis is a big newspaper. It tells news in Korea. It is very old. It helps many people read. It tells us what is happening. Do you like to read news?
Early Reader · Change the reading level on the articleA woman started a news group. It tells us what is happening. It shares news from far away. It helps people learn. We can read it on a screen. Do you like to read the news?
Early Reader · Change the reading level on the articleThere are very big clock towers. They are in a place called Mecca. The clocks are the biggest in the world. They help people see the time. They are very tall and bright. Can you see the big clock?
Early Reader · Change the reading level on the articleA man made a new drink. It was called Coca-Cola. It was made in a shop. Now, it is in many places. You can find it in stores. Do you like sweet drinks?
Early Reader · Change the reading level on the articleThe CW is a TV station. It shows many shows. It started a long time ago. It helps people watch TV. It is fun to watch. Do you like to watch TV?
Early Reader · Change the reading level on the articleThe Telegraph is a news paper. It tells us what is happening. It was made a long time ago. People read it to learn things. It helps us know the world. Do you like to read the news?
Early Reader · Change the reading level on the articleThis is a big news paper. It tells us about money. It comes from a place called India. Many people read it every day. It helps us learn about the world. Do you like to read news?
Early Reader · Change the reading level on the articleThis is a news book. It tells stories about money and the world. It has a bright red name. It helps people learn new things. Do you like to read news?
Early Reader · Change the reading level on the articleThis is a big newspaper. It tells news to many people. It is from Canada. It helps us know what is happening. It is very old. Do you like to read news?
Early Reader · Change the reading level on the articleThe Guardian is a news paper. It tells us what is happening. It tells stories from all over. You can read it on a screen. It helps us learn about the world. Do you like to read the news?
Early Reader · Change the reading level on the articleThis is a famous magazine. It tells news about movies. It tells news about TV shows. It helps us learn about stars. It is very old. Do you like movies?
Early Reader · Change the reading level on the articleThis is a big iron bridge. It crosses a river. It was the first big bridge made of iron. It helps people cross the water. It is very old and strong. Do you like big bridges?
Early Reader · Change the reading level on the articleThe Nikkei is a big paper. It tells news about money. It is from a place called Japan. Many people read it every day. It helps us learn about business. Do you like to read the news?
Early Reader · Change the reading level on the articleTheo Albrecht ran grocery stores. He started the Aldi stores. He wanted low prices for all. He was a very rich man. He liked to save money. Do you like to save money?
Early Reader · Change the reading level on the articleA chain is only as strong as its weakest link. This means one slow part can stop everything. We must find the slow part first. Then we can help it go faster. This helps us reach our goals. Do you want to try it?
Early Reader · Change the reading level on the articleWe can save heat for later. It can stay in big tanks. We can use it to warm homes. It helps us when the sun goes down. It is a smart way to use energy. Do you like being warm?
Early Reader · Change the reading level on the articleSome plants make power for us. They use heat to make it. Heat turns water into steam. The steam makes a wheel spin. This makes the power we use. It helps our lights turn on. Do you use power at home?
Early Reader · Change the reading level on the articleSome machines print without ink. They use heat to work. The heat makes the paper turn black. This makes words and pictures. It is very fast. You see this on store receipts. Have you seen one?
Early Reader · Change the reading level on the articleSome parts change when they get hot. These parts help tell how warm things are. They can even keep tools safe. This helps us every day. Do you want to learn more?
Early Reader · Change the reading level on the articleThis is a very strong bomb. It makes a big cloud of fuel. Then it catches the cloud on fire. This makes a lot of heat and pressure. It can even work inside a building. Can you imagine a cloud that burns?
Early Reader · Change the reading level on the articleSome wires help us tell the heat. Two wires join at one end. They make a tiny bit of power. This power shows if it is hot. We use them in our homes. Can you feel the heat today?
Early Reader · Change the reading level on the articleA thermostat helps keep things the right heat. It can be in your house. It works in a fridge, too. It turns the heat on or off. This helps you stay cozy. Do you have one at home?
Early Reader · Change the reading level on the articleThis is a news magazine. It has been around for a long time. It tells us about news and books. It helps us learn about the world. Do you like to read news?
Early Reader · Change the reading level on the articleThis is a big news paper. It tells stories from Singapore. It tells many stories every day. It helps us know what is happening. We can read it on paper. We can read it on a screen. Do you like to read the news?
Early Reader · Change the reading level on the articleThe Sun is a paper. It tells news in the UK. It has many stories. People read it every day. It is a very big paper. Do you like to read news?
Early Reader · Change the reading level on the article