Explore matter, energy, chemistry and the physical laws that help explain everyday life. Choose an article below; its reading controls let you move between the available levels.
2,727 public articles · Page 8 of 57
John Dalton was a smart man. He studied the world. He found out about tiny bits that make up everything. These bits are very small. His work helps us learn today. Do you like to learn new things?
Early Reader · Change the reading level on the articleJacob Berzelius was a man who studied stuff. He looked at many things. He found new parts of our world. He made a new way to write about them. This helps us learn today. Do you like to learn new things?
Early Reader · Change the reading level on the articleA man named Gay-Lussac studied science. He learned how air works. He also found what makes water. His work helps us today. He was a great thinker. Do you like to learn new things?
Early Reader · Change the reading level on the articleJoseph Priestley was a smart man. He studied many things. He found a special kind of air. This air helps us live. He also made bubbly water. He was a great teacher. Do you like to learn new things?
Early Reader · Change the reading level on the articleJosiah Willard Gibbs was a smart man. He studied how things work. He used math to help us understand science. His ideas help us make new things. He was a great teacher. Do you like math too?
Early Reader · Change the reading level on the articleA joule is a tiny bit of energy. It helps things move or get warm. It is like lifting one apple up. This small bit of energy is everywhere. We use it to do work. Can you feel energy in your body?
Early Reader · Change the reading level on the articleRobert was a smart man. He studied how things work. He led a big team. They made a very strong bomb. This changed the world. It was a big deal. Do you like science?
Early Reader · Change the reading level on the articleJustus was a great scientist. He helped plants grow big. He found good food for them. This helped people eat more. He was a very smart teacher. Do you like to learn new things?
Early Reader · Change the reading level on the articleWe use a way to measure heat. It starts at the coldest spot. No thing can be colder than that. This helps us know how hot things are. It is a very special way to count. Do you want to feel cold?
Early Reader · Change the reading level on the articleKerosene is a clear liquid. It can be used as fuel. It helps planes fly in the sky. It can also help us cook food. It is a very useful thing. Do you know what else uses fuel?
Early Reader · Change the reading level on the articleSome things in our world are special. They can be food or scents. Some help clean things too. They are all around us. We use them every day. Can you find one?
Early Reader · Change the reading level on the articleA kilogram is a way to measure weight. It helps us know how heavy things are. We use it to weigh food. It is very important for us. Do you know how much a kilo weighs?
Early Reader · Change the reading level on the articleWe study how things move. We look at where things go. We see how fast they move. This helps us build robots. It helps us see stars move. It is very cool. Do you like to move?
Early Reader · Change the reading level on the articleMoving things have energy. This is energy of motion. It helps things move. A fast car has a lot of it. A slow ball has a little. Can you see things moving? It is all around us.
Early Reader · Change the reading level on the articleElectricity moves in paths. It flows through wires. All the power that goes in must come out. This helps our lights work. It is like a loop. Do you like to use lights?
Early Reader · Change the reading level on the articleKrypton is a gas in the air. It has no smell. It helps make bright lights. Some lights use it to glow. It can even help in cameras. It is a very special thing. Can you find a bright light?
Early Reader · Change the reading level on the articleTiny things in our bodies make acid. This acid comes from the food we eat. It helps when we run very fast. It can also live in sour milk. It helps our bodies work. Do you like sour milk?
Early Reader · Change the reading level on the articleMilk has a sweet taste. This comes from a sugar. It is in milk from many animals. It helps babies grow. It is very good for us. Do you like milk?
Early Reader · Change the reading level on the articleScientists use energy to study how things move. They look at how things speed up or slow down. This helps us learn about the world. It makes hard math much easier. We can see how things work! Do you like to see…
Early Reader · Change the reading level on the articleSome metals like to hide. They are hard to find in rocks. These metals are all very similar. They work in many ways. They help us do things. Can you find them in nature?
Early Reader · Change the reading level on the articleLanthanum is a soft metal. It looks like shiny silver. It is found in the ground. It helps make bright lights. It can even help some people stay well. Do you like bright lights?
Early Reader · Change the reading level on the articleA giant ring sits deep in the ground. It helps us learn about our world. Tiny bits of stuff crash together inside. This shows us how things work. It is a very big machine. Can you imagine a ring that big?
Early Reader · Change the reading level on the articleRules tell us how heat works. Heat moves from hot to cold. Energy stays the same too. It cannot be made or lost. This helps us understand the world. It is very cool! Do you feel warm or cold?
Early Reader · Change the reading level on the articleSome years have one extra day. This day is in February. We add it to keep our calendar right. It helps our days match the sun. This is a very special year. Do you know when the next one is?
Early Reader · Change the reading level on the articleLength tells us how far things go. It shows how long or tall things are. We use it to measure the world. It helps us build things. It is very useful! Can you find something long?
Early Reader · Change the reading level on the articleLeo was a great leader. He was a king for a big land. He kept his people safe from wars. He helped his land stay strong. He was a very busy man. Do you like to lead?
Early Reader · Change the reading level on the articleLéon Foucault was a smart man. He studied how things work. He showed that our Earth spins. He also studied light. This helps us see the world. Can you spin in a circle?
Early Reader · Change the reading level on the articleAir can push on things. This push can move things up. It helps planes fly in the sky. It also helps birds fly high. It is a very cool thing! Can you feel the wind push you?
Early Reader · Change the reading level on the articleLinus Pauling was a great scientist. He studied how tiny things work. He won two big prizes for his work. He also worked to keep people safe. He was a very smart man. Do you like to learn new things?
Early Reader · Change the reading level on the articleLise Meitner was a smart scientist. She studied how tiny things work. She helped find a new way to split atoms. This discovery changed our world. She worked very hard at her job. Do you like to learn new things?
Early Reader · Change the reading level on the articleLithium is a soft metal. It is very light. It can even float on water! We use it to make batteries. These batteries help our tools work. Do you use things with lithium batteries?
Early Reader · Change the reading level on the articleWilliam was a great thinker. He studied how heat moves. He found the coldest temperature. This helps us learn about the world. He was a very smart man. Do you like to learn new things?
Early Reader · Change the reading level on the articleTiny bits of stuff can move. Some things push them. Other things make them turn. This helps make motors spin. It is a big help to us. Can you see it work?
Early Reader · Change the reading level on the articleThings change when you move fast. Space and time can look different. One person sees one thing. Another person sees something else. This helps us understand light. It is a big idea. Do you like to move fast?
Early Reader · Change the reading level on the articleLouis was a smart man. He studied how small things move. He found that tiny bits act like waves. This helps us learn about our world. Do you like to learn new things?
Early Reader · Change the reading level on the articleA lumen tells us about light. It shows how bright a bulb is. This helps us find good lights. We use them to see in the dark. It is a helpful way to measure. Can you see the light?
Early Reader · Change the reading level on the articleLutetium is a shiny metal. It is hard and heavy. It is very rare to find. It helps doctors treat some sicknesses. We can find it in rocks. Do you like shiny things?
Early Reader · Change the reading level on the articleA lux tells us about light. It shows how bright a spot is. A small light can be dim. A big light can be bright. It helps us see our rooms. Do you like bright light?
Early Reader · Change the reading level on the articleMagnesium is a shiny gray metal. It is very light. It can burn with a bright white light. This metal is in your body too. It helps your cells work well. It is in many foods. Do you like to eat healthy food?
Early Reader · Change the reading level on the articleSome salt is white and hard. It can help plants grow in dirt. It also helps sore feet feel better in a warm bath. This salt is called Epsom salt. Do you like taking baths?
Early Reader · Change the reading level on the articleA magnet pulls on some things. It can pull on iron. It can also pull on steel. This pull is a hidden force. It helps hold notes on a fridge. Do you have a magnet at home?
Early Reader · Change the reading level on the articleMagnets have a special power. This power is all around them. It can pull on metal. It can even push things away. It helps keep our Earth safe. Do you have a magnet at home?
Early Reader · Change the reading level on the articleSome things have a pull. This pull stays the same. It can help a computer work. It helps us save things. It is very useful. Do you feel the pull?
Early Reader · Change the reading level on the articleManganese is a hard metal. It looks like silver. It helps make strong steel. It is also good for your bones. We need it to stay healthy. Can you find it in the ground?
Early Reader · Change the reading level on the articleStuff and energy are the same. Tiny bits of stuff can turn into big energy. This makes light and heat. It is a very big deal. Can you feel the heat?
Early Reader · Change the reading level on the articleScientists use a special tool. It helps them see tiny bits. It can find what things are made of. This helps us learn about the world. It is very cool! Can you find something tiny today?
Early Reader · Change the reading level on the articlePeople study what things are made of. They look at tiny parts. This helps them make new things. It helps us build cars and planes. It is very cool. What is your favorite thing?
Early Reader · Change the reading level on the articleMax Born was a smart man. He studied how tiny things work. He helped find new rules for science. This work won him a big prize. He taught many other people too. Do you like to learn new things?
Early Reader · Change the reading level on the article