Have you ever wished you could copy a drawing but make it larger or smaller? If you've tried to create a larger or smaller copy of your work, you've probably realized that it is very hard to get the details right. A machine called a...

Do you find it hard to imagine the vastness of the Solar System? This video shows how to use strings to make a scale model of the distances from the planets to the Sun and helps gain a better understanding of interplanetary distances....

This tutorial describes several different methods for removing the enamel insulation from "magnet wire," which is commonly used to make solenoids and electromagnets.

Have you ever thought about what type of ground buildings are constructed on? Rock, gravel, sand, soil and many others—there are lots of different types of "ground." And this issue becomes especially important in areas that are...

Summer is the perfect time to take a stroll at the beach and walk barefoot along the shoreline. While doing that, have you ever looked at your footprints in the wet sand? If so, you might have noticed that with every step it looks like...

Why is it important to eat healthy and exercise? If you don't, you might end up with a cardiovascular disease. These diseases are conditions that affect your heart and blood vessels. The job of your cardiovascular system is to transport...

Here is a fun project you can try with leftover candy you have. You will make some amazing art using nothing but colored candy and hot water—and a little bit of science. Save some of your candy and get started!

Did you know that the oxygen you breathe is produced by plants during photosynthesis? This video shows how you can do an experiment called the floating leaf disk assay to see photosynthesis in action. Can you spot the oxygen bubbles...

Does your hair go frizzy during "April showers," when the weather turns damp? Strands of hair can relax and lengthen when the humidity (or the amount of water vapor in the air) increases, and then contract again when the humidity...

Did you know that milk can be turned into cottage cheese with the help of enzymes? This video will show you what happens to milk when you mix it with pineapple juice. How do you think the milk will change?

Have you ever wondered how plants take up water from the soil? Water uptake in plants is quite complex and involves a process called osmosis. Osmosis makes the water from the soil move into the roots of the plant. But what drives the...

What do you need to make a motor? Not much! In this quick activity, you will make a simple motor using nothing but a battery, magnet, and a piece of wire.

Do you like gift wrapping? If you do, you have probably curled a ribbon with scissors before. Have you ever wondered why the ribbon curls when you run a scissor blade down one side of it? The answer is that when you apply pressure on the...

You might know that sound is caused by vibrations, but did you know that sound can also make things vibrate? You might have noticed this if you have ever been at a concert or in a car with the stereo booming. Sometimes the sounds are so...

How do you make a battery from a potato? How much electricity can you produce? Does the amount of electricity change if you make a parallel versus serial circuit? Explore these questions and more with a potato battery science experiment.

How many dyes are in a bag of M&Ms? The answer might surprise you! Not every M&M color is a single dye; some are mixtures. You can discover all of the colors using a technique called paper chromatography. This video shows you...

Learn about the importance of iteration and failure in the engineering design process. Your design might not work perfectly on the first try, and that's OK! For a complete guide to the engineering design process, see the Science Buddies...

Do you know the difference between starchy and non-starchy foods? How do you know which foods contain starch and which ones do not? There is a simple chemical test you can do to find out. This video will show you how it works!

How big or small are viruses really? This video shows you how you can make a scale model to find out and compare the size of a virus to many other small objects. How much bigger do you think a pencil dot is compared to a coronavirus?

What food dyes are in your candy? Is black ink really black? What gives fall leaves their color? These are all questions that you can investigate using paper chromatography – a technique that can separate mixtures into their individual...

Did you know that at sea level there are about 15 pounds of air pressing on each square inch of your body? This air is very helpful in our daily lives. For example, this layer of air helps to keep the Earth from getting inhospitably cold...

How can you change the rate of a chemical reaction? This video shows how you can find out by experimenting with a fun foaming reaction! How much foam can you create?

Are you eager to understand how everyday items work, or interested in making useful objects and instruments yourself? Have you ever imagined you could build your own thermometer? In this activity, you will make a liquid thermometer to...

Centrifuges are machines that can separate mixtures by spinning them very fast! How does this work? This video shows how you can build your own bottle centrifuge to find out.