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 57 of 86
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Mixing makes things the same. You can stir pancake batter. You can stir milk into tea. This helps things work well. It makes food and things we use. Do you like to stir things?
Early Reader · Change the reading level on the articleAn app is a tiny program. It lives on a phone or a watch. You can play games with them. You can also use them to talk. They help us every day. Do you have a favorite app?
Early Reader · Change the reading level on the articleA mobile home is a house. It is built in a factory. Then, it is moved to a new spot. It can stay in one place for a long time. It helps people have a place to live. Do you like houses on wheels?
Early Reader · Change the reading level on the articleSmall tools use special software. This software runs your phone. It helps the phone work well. It lets you talk to friends. It is very helpful for us. Do you use a phone?
Early Reader · Change the reading level on the articleA model shows how a machine works. It shows how it takes in things. Then it makes something new. This helps us see if a machine is fast. It is a smart way to learn. Can you think of a machine?
Early Reader · Change the reading level on the articleComputers use many small parts. Each part does one job. This helps us build big things. It is like using blocks. We can use the same blocks again. It makes work easy. Do you like building with blocks?
Early Reader · Change the reading level on the articleMohamed Al-Fayed was a man who did business. He owned many big shops and hotels. He worked very hard to make money. He lived in a big city called London. Many people knew his name. Do you know any big shops?
Early Reader · Change the reading level on the articlePeople build tiny things. They use very small parts. They make new stuff. This helps make better tools. It can help make medicine. It can help make batteries. It is like building with tiny blocks. Can you imagine…
Early Reader · Change the reading level on the articlePeople use a glass bottle to make fire. They fill it with fuel. A cloth is used to start the fire. The bottle is thrown at a target. It breaks and makes a big flame. Have you ever seen a bright fire?
Early Reader · Change the reading level on the articleSome power plants use hot, melted salt. The salt is very hot. It helps make power. This can be safer for us. The salt can even flow away if there is a problem. Do you like to learn about heat?
Early Reader · Change the reading level on the articleThis company makes yummy treats. They make cookies and chocolate. They also make gum. You can find their snacks in many places. It helps make people smile. Do you like cookies?
Early Reader · Change the reading level on the articleMany people work together here. They work in a place called Mondragon. They make many things. They help each other every day. This helps everyone stay strong. Do you like to work with friends?
Early Reader · Change the reading level on the articleComputers use a special rule to work. This rule helps many tasks share one thing. Only one task can use it at a time. This keeps everything safe and correct. It helps computers run well. Do you like how computers work?
Early Reader · Change the reading level on the articleA monoplane has one big wing. It is a simple plane to build. Most planes in the sky today use this design. It helps them fly fast. It is very cool to see! Do you like planes?
Early Reader · Change the reading level on the articleMonster trucks are huge. They have very big tires. These trucks can jump high. They can even crush old cars. It is a fun show to watch. Do you like big trucks?
Early Reader · Change the reading level on the articleTrains run under the ground in Montreal. They use rubber tires to move. This helps the trains go fast. Many people ride them every day. It helps us get around the city. Have you ever ridden a train?
Early Reader · Change the reading level on the articleTiny parts make computers work. These parts get smaller and smaller. More parts fit on a chip every two years. This helps our tools get better. It makes our things fast. Do you like fast computers?
Early Reader · Change the reading level on the articleA mop helps clean the floor. It picks up dirt and water. We use it to make floors shine. It makes our homes look good. It is a helpful tool. Do you like a clean floor?
Early Reader · Change the reading level on the articleA moped is a small bike. It has a tiny motor. It also has pedals like a bicycle. You can use the pedals to help. It is a fun way to go. Do you like small bikes?
Early Reader · Change the reading level on the articleThis is a radio news show. It tells us about the world. People listen to it in the morning. It tells stories about sports and art. It helps us know what is happening. Do you like to hear the news?
Early Reader · Change the reading level on the articleMorris Chang is a smart man. He helps make tiny computer parts. He started a very big company. This company helps the whole world. He worked very hard in school. Do you like to learn new things?
Early Reader · Change the reading level on the articleA mortar and pestle are tools. One is a bowl. One is a stick. You use them to crush things. They make food or medicine. Can you find them in your kitchen?
Early Reader · Change the reading level on the articleMortar is a thick paste. It holds bricks together. It fills the gaps between them. It helps keep walls strong. It can even make patterns. Do you like big buildings?
Early Reader · Change the reading level on the articleThis is a long path for water. It joins two big rivers. It brings water to the city. This helps people drink and work. It is a very big job. Do you like to see boats on water?
Early Reader · Change the reading level on the articleTrains run under the ground in Moscow. They go to many places. The stations look very pretty. Many people ride these trains every day. It is a very big system. Do you like riding trains?
Early Reader · Change the reading level on the articleA tiny part helps computers work. It acts like a small switch. It can turn power on or off. This helps your toys and tools run. It is very small! Can you find one in a toy?
Early Reader · Change the reading level on the articleA mosquito net is a thin cloth. It hangs over a bed. It keeps bugs away from you. This helps you stay healthy. It is like a soft wall. Do you like sleeping in a tent?
Early Reader · Change the reading level on the articleA motel is a place to sleep. It is for people in cars. You can park right by your door. This makes it easy to move bags. It is a fun place to stay. Have you ever stayed in a motel?
Early Reader · Change the reading level on the articleA computer has a big board inside. It helps all the parts talk. This board holds the brain of the computer. It makes the machine work well. It is very important. Do you have a computer at home?
Early Reader · Change the reading level on the articleA motorboat uses a motor to move. It does not use wind. It is very fast on the water. You can use them for fun. They help us travel. Do you like fast boats?
Early Reader · Change the reading level on the articleA motorcycle taxi is a ride on a bike. One person sits behind the driver. It helps people move fast. It is a cheap way to travel. Many people use them every day. Do you like rides on bikes?
Early Reader · Change the reading level on the articleA motorized scooter helps you move. You stand on a flat board. A small motor makes it go. It can be faster than walking. Some people use them in big cities. Do you like to ride scooters?
Early Reader · Change the reading level on the articleA motor ship moves on water. It has a big engine inside. This engine makes it go. These ships carry many things. They help people all over. Do you like big ships?
Early Reader · Change the reading level on the articleA motor vehicle moves on land. It has wheels to roll. It uses a motor to go. It can carry people or things. These help us get around. Do you like to ride in a car?
Early Reader · Change the reading level on the articleA mountain bike is for bumpy paths. It has big, bumpy tires. These tires help you ride on dirt. The bike can have parts that bounce. This makes the ride smooth. It helps you stay on the trail. Do you like to ride bikes?
Early Reader · Change the reading level on the articlePeople take coal from the top of mountains. They blast away rocks and dirt. This helps them reach the coal. Some dirt goes into valleys. This can change the land. Do you like mountains?
Early Reader · Change the reading level on the articlePeople use small pieces to print. These pieces have letters on them. You can move them to make words. This helps us make many books. It is a very smart way to work. Do you like to read books?
Early Reader · Change the reading level on the articleMP3 is a way to save music. It makes music files very small. This helps music fit on your phone. It still sounds good to us. You can listen to songs anywhere. Do you like to listen to music?
Early Reader · Change the reading level on the articleComputers use a special way to save movies. This helps them fit on small things. It also helps them play on the web. It makes video and sound work well. It is very helpful for you! Do you like watching videos?
Early Reader · Change the reading level on the articleMSN is a place on the web. It shows news and weather. It also shows sports. You can use it on a phone. It helps us learn things. Do you like to read news?
Early Reader · Change the reading level on the articleThe MTR is a big train system. It moves many people in Hong Kong. It has many lines and stops. It helps us get to work and school. It is very fast and on time. Do you like to ride trains?
Early Reader · Change the reading level on the articleMUFG is a very big bank. It is in Japan. Many small banks joined to make it. It helps people with money. It is one of the largest in the world. Do you like to save money?
Early Reader · Change the reading level on the articleMukesh Ambani is a rich man. He runs a very big company in India. He helps make many things. His work helps many people. He is a very busy leader. Do you like big companies?
Early Reader · Change the reading level on the articleA computer chip can have many brains. These brains work together. They help your computer go fast. This helps you play games. It is very cool! Do you have a computer?
Early Reader · Change the reading level on the articleCameras take many pictures at once. They take one bright picture. They take one dark picture. They mix them together. Now you can see everything! It looks like your eyes see. Can you see the bright sun and dark shadows?
Early Reader · Change the reading level on the articleIt is hard to stay safe online. You can use two things to lock your apps. You might use a secret word. You might also use a special key. This helps keep your things safe. Do you use a secret word?
Early Reader · Change the reading level on the articleSome boats have more than one hull. Most have two hulls. Some have three hulls. These boats stay very steady. They can go fast on the water. They are fun to ride! Do you like boats?
Early Reader · Change the reading level on the articleThis is a tiny card. It holds your digital files. It is small like a stamp. It helps your tools work. It is very useful. Do you have a small card?
Early Reader · Change the reading level on the article