Fun & Easy Science for Kids

## Gravity

What goes up must come down, but have you ever wondered why? The answer is gravity. Gravity is an invisible force that pulls one object toward another. Anything that has mass – including humans – has gravity. The more mass an object has, the stronger its gravitational pull. We can’t...

## Friction

What would happen if you tried to slide across the cement in your tennis shoes? You probably wouldn’t move much and you might even trip, right? What if you tried to slide across a wooden floor wearing only socks? Or slide across a sheet of ice in your boots? You’d probably slide right along....

## Simple Machines

Let’s say you needed to lift something very heavy. How could you do it? Sure, you could ask a friend to help – or maybe even two or three friends. But what if the object was REALLY heavy? You might need some extra power, right? Simple machines increase force and

## Gears

We don’t know who invented the first wheel, but we do know that it was one of our most important inventions. Wheels allow us to go places and allow products to be delivered to us. Gears are another important invention. Gears are wheels with teeth. They are simple machines that harness force....

## Parachutes

Have you ever watched a milkweed seed, a bit of cottonwood fluff, or a feather float through the air? We know that gravity is always present, pulling any object that goes up back down. Why do these objects seem to take a long time to reach the ground though? It’s not because they’re light,...

## Electricity

We know that atoms contain neutrons, which have no charge; protons, which have a positive charge; and electrons, which have a negative charge. Protons and neutrons stay within the atom, but electrons are a little like bumper cars....

## Color

Think about the waves in the ocean. They seem to roll forward. Sometimes the waves are wide and slow. At other times, the waves seem close together and they move quickly. Light moves in waves too. Some of the waves seem to move slowly with wider spaces between them. Others move more quickly with...

## Light

Light is something that we take for granted. Turn on a switch and voila, light! In most cities, street lights shine throughout the night. A few hundred years ago, though, people really appreciated light. Once the sun went down, the...

## Heat

Think about all the ways you can make heat. Put a log on a fire and it burns, creating heat. Run around the playground and your body gets warm. Turn up the thermostat on the furnace and warm air flows from the vents. Or, rub your hands together and you'll notice heat. Fun...

## What is Physics

Physics is the study of all matter, energy, and forces and how they interact. Unlike chemistry, which focuses on combining atoms and elements into substances and compounds, physics explores mechanics, energy, momentum, waves, light, heat, sound, electricity, magnetism, optics, and...

## Chemistry 101

Chemistry is the study of matter and energy and how they work together. It is similar to physics. Before chemistry, early scientists studied alchemy. These scientists wanted to understand how the world worked. They were looking for...

## Atoms, Electrons, Protons, and Neutrons

Atoms are everywhere. You’re made of atoms. Your dog is made of atoms. Your peanut butter sandwich? Yep. Made of atoms. Atoms are the smallest particle of matter. They’re so small that they can’t be cut, or divided. Molecules are made up of atoms. Confused? Think of a sentence. The words...

## Chemical Composition

Chemical composition has more than one meaning. If you’re discussing a substance with one component, such as water, the chemical composition means the type and arrangement of elements and molecules within the substance. If you’re discussing a substance with more than one component,...

## Metals and Alloys

Metals, such as gold, iron, or aluminum, are found in the Earth and are among the most common elements on the planet. Metals are used for lots of different things, such as making jewelry or weapons. But metals sometimes have undesirable...

## Gases

You know that water is a liquid, ice is a solid, and steam is a gas. But what exactly is a gas? The molecules in a solid are stable. They don’t move and they’re packed closely together. The molecules in a liquid are spaced farther apart. But the molecules in a gas are active. They move...

## History of Chemistry

People were using principles of chemistry thousands of years ago. The ancient Egyptians, for example, used chemistry to develop materials for embalming and mummifying their dead. Early farmers discovered that animal waste helped...

## Branches of Chemistry

Chemistry is a wide, deep subject, broken into five main areas or branches. One branch concerns living things and the human body; another branch studies products and materials made in a lab. Which branch of chemistry interests...

## Lab Reports

Science experiments are often casual and fun. Maybe you mixed baking soda and vinegar in a pop bottle in the backyard just to see what would happen. Or you rubbed a balloon against your head to learn about static electricity. At other times, though, your science experiments will be more formal....

## Scientific Method

How do scientists make new discoveries? How do we know their research is accurate and valid? They use the scientific method, of course! The scientific method is an organized, specific way of learning. You can use the scientific method too.

## Periodic Table

We know that elements are types of atoms, made up of varying numbers of protons, neutrons, and electrons. Scientists have discovered or made about 120 elements. The periodic table is a little like a cookbook. It...

## Chemistry Safety

The inventor, Thomas Edison, loved learning and experimenting. His mother taught him at home and let him create a chemistry lab in the basement. As a young teenager, Edison got a job working on a train. He was kicked off the train after one of his science experiments set a train car on fire. The...

## Boiling and Freezing Points

That puddle of water in your driveway has turned to ice overnight. Have you ever wondered how cold the temperature must drop for water to freeze? Or how hot the water must be to boil for your mac and cheese?

## Weights and Measurements

Let’s say you wanted to tell a friend how large your dog was. You had never heard of inches or feet. How could you explain it? Thousands of years ago, people used common objects to describe and compare measurements. You...

## Solutions and Mixtures

Have you ever mixed things in the kitchen just to see what you could make? Maybe you sprinkled some cinnamon or salt in a cup of water or poured in a splash of vinegar or oil. Maybe you called it a potion, but you were also making a solution or a mixture. You were being a...

## Styrofoam Polymers

Chances are, you use Styrofoam almost daily. Those fold-and-seal take out boxes are made from Styrofoam. So are the thick white cups used to keep your hot cocoa warm. How about those wedges of plastic you find in packing boxes? Styrofoam keeps computers, electronics, and other fragile items safe...

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