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 61 of 86
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People work in groups. They must talk to do a job. They share news with each other. This helps them work well. Talking helps everyone stay on the same page. Do you like to work with friends?
Early Reader · Change the reading level on the articleMachines can print body parts. They use special ink with tiny cells. The cells grow into a new organ. This can help people feel better. It is like magic! Do you want to see more?
Early Reader · Change the reading level on the articleA tiny part helps computers work. It looks for a signal. If one part is on, it turns on. It stays on if both parts are on. This helps machines think. Do you like computers?
Early Reader · Change the reading level on the articleOriana Fallaci was a writer. She went to many wars. She talked to big leaders. She told the truth about the world. This helped many people know what was happening. Do you like to read stories?
Early Reader · Change the reading level on the articleThe Orient Express was a special train. It traveled through Europe. It was very fancy and nice. People loved to ride it. It had beds and yummy food. Would you like to ride this train?
Early Reader · Change the reading level on the articleThe Oroville Dam is a giant wall. It holds back a big lake. This dam helps give people water. It also makes power for our homes. It keeps the river from flooding. Can you imagine a wall that big?
Early Reader · Change the reading level on the articleOrville Gibson made music tools. He made guitars and mandolins. He carved them from wood. They were loud and strong. People loved to play them. Do you like music?
Early Reader · Change the reading level on the articleTrains run under the ground in Osaka. They carry many people every day. These trains help us get around the city. They are very safe and clean. Do you like riding trains?
Early Reader · Change the reading level on the articleTrains run in the city. They go under the ground. They go over the ground too. The trains help people move. They are fast and fun. Do you like train rides?
Early Reader · Change the reading level on the articleThis is a very tall tower. It is in a place called Moscow. It sends TV shows to many homes. It looks like a big rocket. We can see it from far away. Can you see the tall tower?
Early Reader · Change the reading level on the articleOtto was a man who loved to fly. He built wings to glide in the air. He watched birds to learn how they fly. This helped him make his own wings. He was a very brave man. Do you want to fly like a bird?
Early Reader · Change the reading level on the articleA man named Ottomar made moving pictures. He used a special camera. He took pictures of birds in the wild. His work helped make films. He was a great inventor. Do you like movies?
Early Reader · Change the reading level on the articleComputers can show us things. They use screens to show pictures. They use speakers to make sound. A printer puts words on paper. These tools help us see and hear. Do you like to use a screen?
Early Reader · Change the reading level on the articleAn outrigger helps a boat stay steady. It is a part on the side. It keeps the boat from tipping over. This helps people sail on the sea. It makes the trip safe for you. Do you like to ride in boats?
Early Reader · Change the reading level on the articleWires hang high on tall poles. They carry things to your home. They can carry power or TV. This helps us talk and watch shows. It is fun to see them. Do you see wires outside?
Early Reader · Change the reading level on the articleWires carry power to you. They hang on tall poles. These poles are made of wood or metal. The wires bring light to your home. It is very helpful. Do you see wires outside?
Early Reader · Change the reading level on the articleBoxes and bags keep things safe. They help move things to stores. Some boxes hold food. They keep it fresh and clean. This helps you eat well. Do you see many boxes at home?
Early Reader · Change the reading level on the articleSome animals help us move things. They carry loads on their backs. Horses and donkeys do this work. They help people in many places. This helps us carry heavy stuff. Do you have a big bag? Can you help carry things too?
Early Reader · Change the reading level on the articleA paddle boat uses big wheels. The wheels spin in the water. This helps the boat move. It can go on rivers. These boats are fun to see. Do you like boats?
Early Reader · Change the reading level on the articleA padlock is a small lock. It can be carried with you. It keeps your things safe. It stops people from taking them. It helps us feel safe. Do you use a lock?
Early Reader · Change the reading level on the articleA pager is a small tool. It can make a beep sound. It can show a message. It helps people get news fast. This helps doctors and helpers. Do you like to hear beeps?
Early Reader · Change the reading level on the articleThis is a way to show color on a TV. It helps the colors look right. It works in many places. It makes movies look good for you. Do you like watching color TV?
Early Reader · Change the reading level on the articleThis place keeps old shows safe. You can watch many TV shows here. You can hear old radio shows too. It helps us learn about them. It is a fun place to visit. Do you like to watch TV?
Early Reader · Change the reading level on the articleA palisade is a tall fence. It is made of long tree trunks. The trunks stand up straight. People use them to stay safe. They can keep animals out too. Do you like tall fences?
Early Reader · Change the reading level on the articleThis group shares news. They find stories for us. They have many old photos. These photos show the past. They help us learn. Do you like to read news?
Early Reader · Change the reading level on the articlePan Am was a big airline. It flew planes all over the world. It even used flying boats! These planes helped people travel far. It was a very famous name. Do you like to fly in planes?
Early Reader · Change the reading level on the articleThis is a very long road. It goes through many lands. It connects many countries. You can drive for a long time. It is the longest road in the world. Would you like to drive on it?
Early Reader · Change the reading level on the articlePanasonic makes many things. They make tools for your home. They make things like TVs and batteries. These tools help us every day. We use them to see and hear. Do you have a Panasonic tool at home?
Early Reader · Change the reading level on the articleThe Tornado is a fast plane. It has wings that can move. Three countries helped build it. It can fly in many ways. It helps keep people safe. Do you like planes?
Early Reader · Change the reading level on the articleA tool can copy a drawing. You trace a small shape. A pen makes a big copy. It can make things tiny, too. This helps us make art. It helps us make coins. Do you like to draw big pictures?
Early Reader · Change the reading level on the articleThis is a big tank. It was made a long time ago. It has thick metal walls. These walls help keep the people inside safe. It was used in a big war. Do you like big machines?
Early Reader · Change the reading level on the articleA paper bag is a bag. It is made from paper. We use them to carry food. They can carry books too. They are good for our Earth. Do you use paper bags?
Early Reader · Change the reading level on the articleA paper cup holds your drink. It is made of paper. It has a thin coat inside. This stops leaks. This helps keep things clean. We use them for one drink. Do you like to use paper cups?
Early Reader · Change the reading level on the articlePeople make paper to write on. First, tiny bits of plant are mixed with water. Then, the water goes through a screen. This leaves a flat mat of bits. Next, the wet mat is pressed dry. Now you have a sheet! Do you…
Early Reader · Change the reading level on the articleA paper towel is for cleaning. It can soak up water. It helps you dry your hands. You use it one time. Then you throw it away. It is very helpful! Do you use them at home?
Early Reader · Change the reading level on the articleComputers use parts to save things. These parts hold your files. They use a special cord to talk. This cord helps the computer work. It was used for a long time. Do you have a computer?
Early Reader · Change the reading level on the articleComputers use special slots. These slots hold information. You can put numbers in them. This helps the computer work. It makes things very fast. Do you like computers?
Early Reader · Change the reading level on the articleSome buses are very special. They do not follow a set path. They can pick you up at your door. This helps people who cannot use big buses. It is a kind way to travel. Do you like to ride in a bus?
Early Reader · Change the reading level on the articleTrains run under the big city. They move people from place to place. These trains go in tunnels. They help us get around fast. It is a fun way to ride. Do you like trains?
Early Reader · Change the reading level on the articleYou can park your car in a big lot. Then you can ride a bus or a train. This helps keep the city roads clear. It makes travel easy for you. Do you like to ride the bus?
Early Reader · Change the reading level on the articleA parking lot is a big space. It is for cars to stay. Cars park there while people shop. This helps us get around. It is a useful place. Have you seen a big parking lot?
Early Reader · Change the reading level on the articlePascal is a way to talk to computers. It helps people write code. It was made to help students learn. It helps us make big programs. It is very good at its job. Do you like computers?
Early Reader · Change the reading level on the articleA passenger is a person on a trip. You can ride in a car or a bus. You can also be on a boat. You do not drive the vehicle. You just sit and go. It is fun to travel! Have you been a passenger?
Early Reader · Change the reading level on the articleA passenger train carries people. It moves on a track. It stops at a station. You can ride it to see new places. It is a fun way to travel. Would you like to ride a train?
Early Reader · Change the reading level on the articleBuildings can stay cool naturally. We can use wind to move air. This helps the heat go away. It helps us feel good inside. It does not use much power. Can you feel a cool breeze?
Early Reader · Change the reading level on the articleA password is a secret. It helps you get in. You use it for computers. It keeps your things safe. It is a good idea. Do you have a secret word?
Early Reader · Change the reading level on the articleA patch helps a computer program. It can fix a mistake. It can make a program work better. It is like a small fix. It keeps your computer safe. Does your computer ever need a fix?
Early Reader · Change the reading level on the articlePaul Allen loved computers. He helped start Microsoft. This made many computers work. He also helped people learn. He gave money to science. He was a very kind man. Do you like computers too?
Early Reader · Change the reading level on the article