Hot Science Experiments How-Tos
How To: Catch coins falling from your elbow with inertia
Catch Coins Falling From Your Elbow. Find out how to catch a stack of coins before it falls to the ground. Mad Scientist Jack will show you how inertia makes it possible. Catch coins falling from your elbow with inertia.
How To: Make shaving cream expand 4 times its size and boom!
Back when we took chemistry, most of what we read and learn went in one ear and out the other. If only we had a cool experiment like this one to perk up our pubescent ADD.
How To: Make Your Own Salt Crystal
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How To: Make Edible Slime
A cool experiment for kids and parents that allows you to make edible Kool-Aid slime. The video attached gives the step-by-step process and shows how fun it is to create the final product.
How To: Sugar & Sulfuric Acid — A Cool Chemical Reaction
Sulfuric acid is mixed with sugar, which is attacked by the acid. The final products are carbon, water vapor, and sulfur dioxide gas.
How To: Clean Copper Coins in One Minute
Video: . You Need just 2 Components:
How To: Make Oobleck
Oobleck is a cool substance that is not quite liquid or solid. Don't believe me, then try for yourself!! All you need is a couple of household ingredients!!
How To: Transform MnO2 into Mn2O3
In this experiment, we're going to get Mn2O3 (manganese(III) oxide) from MnO2 (manganese(IV) dioxide). Mn2O3 forms brightly red or a dark red colored crystal. It is used in Li-ion batteries, since (in a form of a crystal) it conducts electricity (much like MnO2).
How To: Heavy Water & Light Ice Experiment
Heavy Water & Light Ice Experiment. What happens? Ice floating over vegetable oil but it decreases in baby oil.
How To: Make Slimy Teenage Mutant Ninja Turtle Ooze at Home
It's been a minute since Michael Bay released his tragedy of a remake of Teenage Mutant Ninja Turtles. As a huge fan of the cartoon and the movies from the '90s, I have made it a point to not watch the latest this franchise has to offer—I'm certainly not in the business of ruining my childhood. But the awfulness of the remake aside, the TMNT resurgence means I'm celebrating the comeback of everybody's favorite teenage reptiles. Thankfully, Todd's Kitchen has a tutorial for mutant ooze that's ...
How To: Make a Fire with a Magnifying Glass
Here is a video that shows 90 seconds that could save your life. How to actually MAKE A FIRE with a lens, rather than just burning a hole in a leaf. (Or frying ants, which seems to be the other thing that kids like to do with magnifying glasses.)
How To: Separate Batteries, Good from Bad
A simple method to test any alkaline battery in seconds! Works on AA, AAA, C, D batteries. You can separate good from bad.
How To: Make Glowing Oobleck from Potatoes & Tonic Water
This magical, glowing mixture is very strange, with an equally strange name (Oobleck), because it feels like moldable pizza dough in your hands one second, and like liquified goo the next.
How To: Make Quicksand at Home Using Cornstarch & Water
Creating awesomely messy slops of DIY slime and curdled fake blood isn't something new—we even have guides on making Dr. Seuss-friendly Oobleck and the radioactive green ooze that created my childhood favorite Teenage Mutant Ninja Turtles (minus the radioactive part, of course).
How To: Make an Alternative Way to Cook Food
There is always an easier way to do something whether you want to clean, organize, freshen the smell, get water into a bucket that won't fit in your sink. The same principle applies when cooking. Sure you could cook food in an oven, microwave it, boil it, fry it, cook it with a solar cooker, but there is an easier and inexpensive method.
How To: Create a Water Vacuum
Water is such an essential substance for so many facets of life. Why not experiment with it? This experiment will teach you how to create a water display like those Japanese water falls.
How To: Make Ocean in a Bottle - Super Cool Science Experiment
Cool Science Experiment with water and Cooking Oil.
How To: Make Pancake Syrup Turn Blue When You Shake It with This Color Changing Experiment
In this video, I will show you how to perform the color-changing, blue bottle experiment with common household products.
How To: Make an Iodine Clock Reaction at Home
In this video, I'll be demonstrating how anyone can make their own iodine clock reaction with simple over-the-counter chemicals.
How To: Make Green Fire from Laundry Booster
In this guide, you'll learn how to make your own boric acid from borax and other common chemicals to produce a green flame when mixed with methanol.
How To: Create Toxic-Free Green Slime (Makes a Perfect Kid Toy)
This slime is toxic-free and can be used as either a kid toy or to make a great prank. This slime can be made in just a few minutes and doesn't require much for materials. Our video explains in detail how to accomplish this project with step-by-step instructions.
How To: Make Magic Sand
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How To: Karate Chop a Paint Stick with Help from Air Pressure and a Plastic Bag
How heavy is a plastic bag? Not very heavy at all, but in order to use a plastic bag to help me karate chop a thin wooden stick, I don't need weight—I need air pressure. Below, the "Quick Clip" demonstrates the power of air pressure via the vacuum created between a plastic bag and the countertop.
How To: Deflate and Reinflate Balloons Using Liquid Nitrogen
In this "Quick Clip," I tried dunking inflated balloons into a container filled with liquid nitrogen until they were completely flattened and seemingly destroyed. Once out of the liquid nitrogen, the balloons come back to life and reinflate on their own—without even touching them!
How To: Make an Electric Firebolt
A lot of my hacks use salvaged parts from an old microwave, with the microwave oven transformer (MOT) being the most useful component.
How To: Make a Quarter Scream and Shiver
This science experiment deals with sublimation of dry ice into carbon dioxide (CO2) gas. In the video, I'll demonstrate how pushing a quarter into a block of dry ice makes the quarter scream and shake vigorously.
How To: Shutdown a Computer Instantly..
In this clip, you'll learn how to Shutdown a Computer System in a second,just in 3 steps.. Step 1: Create a New Shortcut
How To: Make a Paperclip Float on Water
This quick video demonstrates the classic experiment of making a paperclip, or multiple paperclips, float on water.
How To: Make a Crazy Zigzagging Stream of Water Using a Speaker
Sound waves are a lot more versatile than you'd think. For starters, you can use them to project images onto a bubble and liquefy gummy bears. And now, YouTube scientist and optical illusionist extraordinaire Brusspup shows how sound waves can also be used to manipulate a stream of water into a zigzag shape.
How To: Turn a Glass Bottle into an Electric Tornado Machine
We've all seen the classic tornado-in-a-bottle science experiment, which uses 2 two-liter bottles to create a whirlpool effect. This version requires you to get the tornado started yourself by spinning the bottles, but what if you want to make it fully automated?
How To: Make a Globe-Shaped Candle Lantern from Ice
If you've ever lived in an area that gets ridiculously cold during the winter, you know that it's not so much like this... But usually a little more like this. So...cold...
How To: Make Glowing Slime
Learn how to make your own slime with ingredients you can find around the house. It can even glow under a blacklight!
How To: Debone a Chicken in 5 Minutes.
Deboning a chicken can be intimidating if you don't know how to start. In this video, I'll show you how to debone a chicken in 5 minutes.
How To: Make Water Droplets "Levitate" on Water (Using Vibrations)
You can take some really awesome photos of water droplets if you've got a fast enough camera (and flash), but water drops aren't just spectacular as photographic subjects—you can also make them a part of the photographic process by using a water drop as a DIY projection microscope and even a macro lens for your iPhone. But as useful as a water drop can be, it's still way cooler when they're in front of the camera (as the subject). Recently, researchers from the National Autonomous University ...
How To: Smelt Your Loose Change into Well-Fitting Penny Rings
Did you know that the average cost to make a penny is about 2.4 cents?!? That's why the Obama administration asked Congress earlier this year for permission to change the metals in the penny, hoping to get the cost back down where it makes sense.
How To: Turn Just Half of a Purple Liquid Clear with the Photochemical "Two-Faced" Reaction
We've shown you how to make water change color on command, but how about just half of it? What if I told you that you can split a solution right down the middle and make the color disappear from one side, just by shining light on it?
How To: Launch a Camera into Space (On a Shoestring Budget)
Earlier this month, Adam Cudworth, 19, launched a camera attached to a weather balloon into the edge of space. Battling tough winds, freezing temperatures, atmospheric pressure and tumbling speeds, the teenager from Worcestershire, England was able to capture these amazing pictures of the Earth's upper stratosphere. How to Send a Camera into Space
How To: There's Metal Hiding in Your Pepto-Bismol and Here's How You Extract It
Got an upset stomach or a little heartburn? America's favorite pink pill will cure it right up. But did you know that there's actually metal hiding in those chewable Pepto-Bismol tablets? Yes, metal. Technically, it's a poor metal, but metal's metal, right? Well, we do tend to eat a lot of iron in our diets, because it carries oxygen throughout our bodies, so consuming metallic minerals isn't anything abnormal. But you'd never think that Pepto-Bismol is actually made up of metal.
How To: Make Trippy Triboluminescent Crystals That Glow Red or Blue When You Smash Them
If you're a Breaking Bad junkie who can't wait for the next episode, satisfy your craving with a little at-home chemistry and make some blue DIY smash-glow crystals! No, this is not Walter White's so-called "Big Sky" or even the subpar cringe-worthy product of his competitors. It's not even the same kind of crystals, otherwise you wouldn't be reading this. This is totally legal, even kid-friendly if you play it safe, though it actually requires more safety precautions than the potassium nitra...
How To: Discover the Hidden Colors in Everyday Objects with This DIY Video Spectrometer
A spectrometer is a device that splits light into all of the different colors it's composed of that can't be seen with the naked eye. It does this by using a prism to refract or bend the light. Jeffrey Warren over at Public Labs created a tutorial showing how you can make your own video spectrometer and create spectra like the one pictured below. Any guesses as to what the subject is? Believe it or not, that's what whipped cream looks like when viewed through a spectrometer. You can do this w...