Nobelium
Nobelium is a special metal. It is made in a lab. It is named after a man named Alfred Nobel. It is hard to make. Scientists use big machines to find it. Do you like science?
Early Reader · Change the reading level on the articlePhysical Science articles — Page 41
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 41 of 57
Noble gas compound
Some gases do not like to mix. They like to be alone. But some can join together. This makes a new thing. It can be very special. Do you want to see?
Early Reader · Change the reading level on the articleNoble metal
Some metals are very special. They do not rust easily. Gold is one of these metals. We use them for rings and coins. They stay shiny for a long time. Do you like shiny things?
Early Reader · Change the reading level on the articleNode (physics)
Waves can move in a special way. Some spots on a wave stay still. These still spots are called nodes. You can see them on a guitar string. They help make music. Can you find a still spot?
Early Reader · Change the reading level on the articleNoether's theorem
Some rules in our world stay the same. If things do not change, something else stays the same too. This helps us know how things move. It is a big secret of science. Do you like to find secrets?
Early Reader · Change the reading level on the articleNoise (electronics)
Sometimes, machines make extra sounds. These sounds can mess up a signal. It can come from the sun or even rain. This can make it hard to hear things. It is a bit like a fuzzy radio. Do you hear extra noise too?
Early Reader · Change the reading level on the articleNon-inertial reference frame
Sometimes things move in a fast way. You might feel a push when you turn. This happens when your world spins. It can feel like a fake force. We see this when the Earth turns. Do you feel a pull when you spin?
Early Reader · Change the reading level on the articleNonlinear metamaterial
People make special new things. These things are not found in nature. They can change how light moves. They can even move light in new ways. These things help us see better. Do you want to learn more?
Early Reader · Change the reading level on the articleNonlinear optics
Bright light can act in new ways. Very strong light can change. It can even make new colors. This happens inside special crystals. It is like magic! Can you see the bright light?
Early Reader · Change the reading level on the articleNonmetal
Some things are not metals. They can be gases or solids. Some are even shiny! They help make our air and water. We need them to live. Do you know what they are?
Early Reader · Change the reading level on the articleNon-Newtonian fluid
{ "text": Some liquids act very strange. \nThey can change how they move. \nKetchup gets runny when you shake it. \nCorn starch and water can act like a solid. \nYou can even walk on it! \nIt is fun to watch. \nCan…
Early Reader · Change the reading level on the articleNon-nucleophilic base
Some things help change how bits of stuff work. These things are very big and bulky. They can pick up a tiny part. But they are too big to grab more. This helps us make new things. Do you like to build things?
Early Reader · Change the reading level on the articleNon-stoichiometric compound
Some solids are not perfect. They have tiny gaps. Sometimes pieces are missing. Other times, there are too many pieces. This helps things like batteries work. It even helps some metals move power. Do you like puzzles?
Early Reader · Change the reading level on the articleNoon
Noon is the middle of the day. The sun is very high in the sky. This makes your shadow very short. It is a bright time. Do you like the sun?
Early Reader · Change the reading level on the articleNormal force
The ground pushes back on you. It keeps you from sinking. You stay on top of the floor. This push helps you stand still. It is very helpful. Can you feel the floor under your feet?
Early Reader · Change the reading level on the articleNormal mode
Things can shake in a special way. A drum or a rope can move in a pattern. All parts move together at once. This pattern helps things make sound. Can you hear a pattern in a song?
Early Reader · Change the reading level on the articleNorman Ramsey Jr.
Norman was a smart scientist. He studied how tiny things work. He helped make tools that tell time very well. This helps us all. He won a very big prize for his work. Do you like to learn new things?
Early Reader · Change the reading level on the articleNovember
November is a month. It has 30 days. It is late fall in the north. It is late spring in the south. You can find yellow stones now. Do you like this month?
Early Reader · Change the reading level on the articleNuclear binding energy
Tiny bits stay stuck together. They act like small magnets. It takes power to pull them apart. This power can make light. We use it to make heat. We use it for power. Can you feel the heat?
Early Reader · Change the reading level on the articleNuclear chain reaction
Tiny bits of stuff can break. When one bit breaks, it lets out more bits. These new bits hit other bits. Then those bits break too. This makes a lot of heat. It can make power for us. Can you imagine that?
Early Reader · Change the reading level on the articleNuclear fallout
Sometimes big explosions make dust. This dust stays in the air. The wind carries it far away. It can land on food and water. This can make people sick. Can you stay safe in a shelter?
Early Reader · Change the reading level on the articleNuclear force
Tiny parts stay close together. They live in the middle of atoms. This force pulls them in. It holds them tight. This helps make everything. Do you see things around you?
Early Reader · Change the reading level on the articleNuclear fuel
Special stuff makes power. It is used in big power plants. It helps make heat. This heat makes power for us. It is very useful. Do you like power?
Early Reader · Change the reading level on the articleNuclear isomer
Tiny bits make up everything. Some bits have extra energy. They hold onto it for a long time. This helps us do big things. It is very cool! Do you want to learn more?
Early Reader · Change the reading level on the articleNuclear magnetic resonance
Tiny parts in things act like magnets. We use big magnets to see them. This helps doctors see inside your body. It is a very cool way to learn. Do you like science?
Early Reader · Change the reading level on the articleNuclear magnetic resonance spectroscopy
Scientists use a big magnet to see small things. It helps them learn how tiny parts fit together. This tells us what a thing is made of. It is like a secret map for science. Can you imagine seeing tiny bits?
Early Reader · Change the reading level on the articleNuclear reaction
Tiny bits of matter can crash together. When they hit, they change. They can turn into something new. This can make a lot of heat. This heat helps the sun shine. Can you feel the sun's warmth?
Early Reader · Change the reading level on the articleNuclear structure
Tiny parts make up everything. These parts stay close together. They act like a little drop of water. They can also fit into layers. This helps them stay strong. Do you want to learn more?
Early Reader · Change the reading level on the articleNucleon
Tiny parts make up everything. They live in a small center. Some parts have a charge. Others have no charge. These parts help make atoms. They are very small. Can you imagine something so tiny?
Early Reader · Change the reading level on the articleNucleon magnetic moment
Tiny bits in atoms act like magnets. These bits are called protons and neutrons. They can pull on things. This helps us learn about the world. It is very cool! Do you like magnets?
Early Reader · Change the reading level on the articleNucleophile
Some tiny things like to make friends. They share bits to make bonds. This helps them stick together. It is how things change. It is very cool! Do you like to make things stick?
Early Reader · Change the reading level on the articleNucleophilic addition
Tiny bits of stuff can join together. One part likes to find another part. They stick to each other. This makes something new. It is like building with blocks. Do you like to build things?
Early Reader · Change the reading level on the articleNucleophilic aromatic substitution
Small parts swap places in a ring. One part leaves. A new part takes its spot. This helps make new things. It is like trading toys with a friend. Do you like to trade?
Early Reader · Change the reading level on the articleNucleophilic substitution
Small parts can swap places. One part comes in. It takes a spot. The old part leaves. This makes something new. It is like a game of musical chairs. Can you find something new?
Early Reader · Change the reading level on the articleObservable
We can measure things in our world. We can find out where things are. We can see how fast they go. This helps us learn how things work. It is a way to know the truth. Do you like to measure things?
Early Reader · Change the reading level on the articleOctahedral molecular geometry
Some tiny things have a special shape. They look like a ball with points. One part stays in the middle. Six other parts sit around it. This shape helps them work. Can you see the points?
Early Reader · Change the reading level on the articleOctane rating
Cars use fuel to go. Some fuel is better for engines. It helps the engine run smooth. This stops loud knocking sounds. It helps your car work well. Do you like fast cars?
Early Reader · Change the reading level on the articleOctasulfur
This is a yellow solid. It has no smell. It can be found in volcanoes. It is also found in space. It is very useful to us. Do you like the color yellow?
Early Reader · Change the reading level on the articleOctet rule
Tiny bits make up everything. Some bits like to be in groups of eight. They share or swap to stay happy. This helps them stay together. It makes the world work. Do you like to play in groups?
Early Reader · Change the reading level on the articleOctober
October is a month in the year. It has 31 days. In some places, it feels like fall. You might see colorful leaves. It is a fun time of year. Do you like October?
Early Reader · Change the reading level on the articleOganesson
Scientists made a new thing. It is a tiny part of our world. It is very heavy. It does not stay for long. It is a big discovery! Can you find it on a chart?
Early Reader · Change the reading level on the articleOhmic contact
Some metals help power flow. They let electricity move easily. This helps our tiny tools work well. We use them in many things. It is a neat way to make things run. Do you like using gadgets?
Early Reader · Change the reading level on the articleOlefin metathesis
Tiny parts can swap places. These parts change to make new things. This helps make soaps and medicine. It is a very smart way to work. It does not make much waste. Can you imagine tiny parts swapping?
Early Reader · Change the reading level on the articleOligomer
Small parts can join together. They make a tiny chain. Some chains are long. Some chains are short. This helps make things like oil. It is all around us. Do you see small things?
Early Reader · Change the reading level on the articleOliver Heaviside
Oliver was a smart man. He worked with wires. He helped us send messages far away. This helps us talk today. He was a great thinker. Do you like to learn new things?
Early Reader · Change the reading level on the articleOliver Lodge
Oliver Lodge was a smart man. He studied how power moves. He helped find ways to send signals through the air. This helped make the radio. His work helps us talk today. Do you like to listen to the radio?
Early Reader · Change the reading level on the articleOne-pot synthesis
Making things in science can be fast. We use just one pot. We do not stop to clean up. This saves time and helps us. It is a smart way to work. Do you like to save time?
Early Reader · Change the reading level on the articleOne-way mirror
This glass is very special. It looks like a mirror. But it can also be a window. One side must be bright. The other side must be dark. This lets people watch in secret. Can you see through it?
Early Reader · Change the reading level on the article