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 35 of 86
Computers use special boxes to stay neat. These boxes hold information and tools together. They keep the inside parts safe and hidden. This helps the computer work well. It makes the code easy to read. Do you like to…
Early Reader · Change the reading level on the articleComputers store data in small groups. These groups have an order. One way starts at the big end. Another way starts at the small end. This helps the computer read things. Does your computer use a big end or a small end?
Early Reader · Change the reading level on the articleWe use power for many things. Sometimes we use too much at once. We can use less power to help. This keeps our world safe and clean. It is good to save power. Can you turn off a light?
Early Reader · Change the reading level on the articleWe use energy for many things. It helps us drive cars. It keeps our homes warm. It makes our lights turn on. We get energy from the Earth. It is all around us. Can you find energy at your home?
Early Reader · Change the reading level on the articlePeople find new ways to use power. They use the sun and wind. They help us not waste power. This keeps our world clean. It helps us all. Do you like the sun?
Early Reader · Change the reading level on the articleWe can save power for later. It works like a battery. We save it when we have extra. Then we use it when we need it. It helps us keep the lights on. Do you use a battery?
Early Reader · Change the reading level on the articleEngineers are clever people. They use science to build things. They make tools to help us. They can make cars or planes. They help make our lives better. Do you want to build something big?
Early Reader · Change the reading level on the articlePeople make new wood. They stick wood bits together. They use glue to help. This makes strong wood. We use it for homes. It can even build big walls. Do you like wood?
Early Reader · Change the reading level on the articlePeople use a plan to make new things. They look for ideas first. Then they draw and test them. This helps them fix any mistakes. It is how we build cool tools. Do you like to build things?
Early Reader · Change the reading level on the articlePeople build big things like bridges. Builders must be very safe. They must do what is right. This helps keep us all safe. We can trust them to work hard. Do you like to build things?
Early Reader · Change the reading level on the articleSome people help build big things. They use math and plans to work. They lead teams of people. This helps keep everyone safe. It also helps get work done. Do you like to lead teams?
Early Reader · Change the reading level on the articleSome people study how things work. They use math and science. They build new things to help us. This helps us make better tools. It is a very big job. Do you like to build things?
Early Reader · Change the reading level on the articleLong ago, people used many ways to measure things. They used parts of their bodies. They used a thumb or a foot. This helped them trade and build. It is how we know how big things are. Do you know how big you are?
Early Reader · Change the reading level on the articleA big dam sits on a river. It is very tall. It helps make power for homes. This power helps us turn on lights. It is a very big job. Do you like bright lights?
Early Reader · Change the reading level on the articleBig companies use special tools. These tools help them work. They keep track of money and things. This helps people do a good job. It makes work much easier. Do you like to stay organized?
Early Reader · Change the reading level on the articleSome people start new businesses. They use new ideas. They might take a big risk. This can help people get what they need. It is hard work. Do you have a big idea?
Early Reader · Change the reading level on the articleAn envelope holds a letter. It is made of thin paper. It keeps your mail safe. You can send cards in them. They help us talk to friends. Do you like to write letters?
Early Reader · Change the reading level on the articleWe use tiny living things to help our world. They can clean up dirty water. They can even clean up oil. This helps plants and animals stay safe. It keeps our Earth healthy. Do you like nature?
Early Reader · Change the reading level on the articlePeople work to keep our world clean. They help fix dirty water. They also help clean the air. This keeps us and plants safe. It helps the Earth stay healthy. Do you like being outside in nature?
Early Reader · Change the reading level on the articlePlanes fly high in the sky. They make gas when they fly. This gas can change our air. This matters to our world. We want to keep the air clean. Can you see a plane?
Early Reader · Change the reading level on the articleSome gears work like a solar system. A middle gear is like a sun. Small gears move around it like planets. These gears help machines move well. They can help cars go fast. Can you find gears in your house?
Early Reader · Change the reading level on the articleA star stand helps us see the sky. It moves with the Earth. This keeps stars in view. It helps you take pretty pictures. It is very cool! Do you like looking at stars?
Early Reader · Change the reading level on the articleAn eraser fixes mistakes. It rubs marks off paper. It can be pink or blue. Some stay on a pencil. It helps you draw. Do you use an eraser?
Early Reader · Change the reading level on the articleAn e-reader is a small tool. It helps you read books. You can keep many books inside. It is light to carry. It helps your eyes feel good. Do you like to read books?
Early Reader · Change the reading level on the articlePeople make tools to fit us. These tools help us work well. They make our bodies feel good. They help us stay safe. Good tools help us stay strong. Do you have a good chair?
Early Reader · Change the reading level on the articleEric Brown was a great pilot. He flew many kinds of planes. He even flew on big ships. He was the first to fly a jet on a ship. He was very brave. Can you imagine flying a plane?
Early Reader · Change the reading level on the articleA company called Ericsson helps us talk. They make tools for phones. They help people use the internet. This helps us stay close to friends. It is very helpful. Do you like using phones?
Early Reader · Change the reading level on the articleErnest was a man who found diamonds. He worked with shiny stones. He led big companies. His work helped many people. He was a very busy man. Do you like shiny things?
Early Reader · Change the reading level on the articleErnie Pyle was a writer. He wrote stories about soldiers. His stories helped people know about the war. He traveled to many far places. He was a very good writer. Do you like stories?
Early Reader · Change the reading level on the articleErnst Ruska was a smart man. He made a new kind of tool. It helps us see tiny things. It is better than a regular tool. This helps us learn about the world. Do you like to look at small things?
Early Reader · Change the reading level on the articleEros is a name for many things. It can be a name for space rocks. It can also be a name for tools. Some things use this name to help us. It is a very big name. Do you know what Eros means to you?
Early Reader · Change the reading level on the articleComputers send messages to each other. Sometimes the message gets messy. This can happen in the air. We send extra bits to help. These bits fix the messy parts. Now the message is clear. Can you send a secret message?
Early Reader · Change the reading level on the articleAn escalator is a moving staircase. It carries people up or down. It helps us move in big buildings. It works well in malls and stations. It is very helpful to us. Have you used one today?
Early Reader · Change the reading level on the articleA clock has a special part. It makes the clock go tick, tick, tick. This part gives a little push to the swinging part. It helps the hands move. It makes sure time stays right. Do you hear the tick in your clock?
Early Reader · Change the reading level on the articleYou can rent small scooters. They use power from a battery. You find them with a phone app. They help you get around town fast. It is a fun way to move! Do you like to ride?
Early Reader · Change the reading level on the articleESPN is a TV channel. It shows many sports games. You can see football and basketball. It helps us watch our favorite teams. It is fun to watch. Do you like to watch sports on TV?
Early Reader · Change the reading level on the articleEsquire is a magazine for men. It has many stories. It shows news and clothes. It helps people learn new things. It is very old. Do you like to read magazines?
Early Reader · Change the reading level on the articleThis company makes things for your eyes. They make glasses and sun shades. They also make the clear parts of glasses. These help many people see well. It is a very big company. Do you wear glasses?
Early Reader · Change the reading level on the articleSome news is made for special groups. It uses words from home. It can be on the radio. It can be in a book. This helps people feel seen. Do you like to read news?
Early Reader · Change the reading level on the articleA man named Étienne built machines. He made a flying machine. It was a helicopter. It could carry a person. He also studied how bugs fly. He was a smart thinker. Do you like machines?
Early Reader · Change the reading level on the articleA man named Eugène made hair dye. He worked in a lab. He started a big beauty company. This company helps people look nice. It is a very famous company. Do you like to use hair dye?
Early Reader · Change the reading level on the articleEugene Stoner made tools. He made many tools for soldiers. These tools help people stay safe. He was a very smart man. He worked hard every day. Do you like to build things?
Early Reader · Change the reading level on the articleA big dam sits on a river. It is very long and high. The dam helps make power for homes. It also helps water the farms. It made a very large lake. Do you like big lakes?
Early Reader · Change the reading level on the articleThe Typhoon is a fast plane. It flies very high in the sky. Many countries work together to make it. It helps keep the air safe. It is a very strong plane. Do you like fast planes?
Early Reader · Change the reading level on the articleEuronews is a news show. It tells us about the world. It shows news from far away. You can watch it on a screen. It helps us learn new things. Do you like to watch the news?
Early Reader · Change the reading level on the articleMany groups work together. They share news and songs. This helps people hear and see things. It brings us all together. We can watch big shows. Do you like to watch shows?
Early Reader · Change the reading level on the articleFast trains go under the sea. They go through a long tunnel. These trains carry people to new places. You can visit many lands. It is a fun way to travel. Do you like fast trains?
Early Reader · Change the reading level on the articleThere are many bike paths in Europe. They go through many lands. You can ride a bike on them. People use them to travel far. These paths are fun to ride. Do you like to ride your bike?
Early Reader · Change the reading level on the article