Hot Science Experiments How-Tos

Classic Chemistry: Colorize Colorless Liquids with "Black" Magic, AKA the Iodine Clock Reaction

Want to make boring old colorless water brighten up on command? Well, you can control the color of water with this little magic trick. Actually, it's not really magic, but a classic science experiment known commonly as the iodine clock reaction, which uses the reactions between water and chemicals to instantly colorize water, seemingly by command. You can use different colorless chemicals to produce different colors, and you can even make the color vanish to make the water clear again.

How To: Extract DNA from wheat germ

This science video tutorial includes step-by-step instructions for extracting DNA from wheat germ, the embryonic plant attached to the wheat seed. Individual wheat seeds, or kernels, separate readily from the plant. This kernels have a tough outer coating called bran. If you want to know more, just watch this science experiment.

How to Be Your Own SpaceX: Design, Build & Test Liquid-Fueled Rocket Engines

Move over NASA— SpaceX is taking over. Well, not really. But today, the privately funded spacecraft company broke all expectations when their Dragon capsule fell to a soft landing in the Pacific Ocean, completing an undoubtedly successful demo flight of nearly two full trips around Earth. It was the first re-entry of a commercial spacecraft ever, bringing commercial space transportation closer to reality.

How To: Make Potassium Chlorate from Ordinary Household Bleach and Salt Substitute

If you're not just a chemistry nerd, but also a firearms freak and explosives nut, then this home brew chemistry concoction is just what you need for some cheap homemade potassium chlorate. It's a mixture of potassium, chlorine and oxygen (KClO3) and is used for such things as gun primers, propellents, and explosives (when mixed with the appropriate fuel). And guess what? NurdRage is going to show you the steps for this makeshift potassium chlorate.

How To: Make an erupting volcano with soap

In this video tutorial, viewers learn how to make an erupting volcano with soap. Begin by adding some vinegar into a flask/baker. Then add some soap into the vinegar and stir it by shaking the flask/baker. Users may choose to add some food coloring to make the mix look more like lava. In a separate, add some water and baking soda. Then stir it to mix. Pour the baking soda solution into the soap and vinegar mixture. This video will benefit those viewers who are interested in science and experi...

How To: Do a yeast experiment to see how much C02 it produces

In this Education video tutorial you will learn how to do a yeast experiment to see how much C02 it produces with different types of food. Yeast is a fungus and it has to eat. After it eats, it produces CO2 gas. The bubbles in bread are produced by the CO2 gas from the yeast. Take five different types of food items and measure out the same quantity for each item. In the video it is 8gms of cookie, oil, flour, salt and sugar. Take six glasses of water and mix one packet of yeast in each glass....

How To: Make flames burn larger with citrus fruit peels

There are so many crazy fun things you can do with fire, this is probably one of the most tame. But it's got flame, so it's still cool. This video will show you how you can squeeze the peels of citrus fruits onto a candle (or large flame for increased fun) and the acid will cause the flame to burn larger and brighter for a flash. Experiment with different peels and flame sources for extended fun. Grapefruit work fantastically.

How To: Lift fingerprints from a bottle of water with super glue

Does someone keep drinking part of water bottle and leaving them around your house or office, taunting you with their wastefulness? Thanks to forensic technology, it is possible to catch the culprit with easy household materials. This video will show you how to use super glue to lift fingerprints off of a water bottle where normal fingerprint-lifting technology would not be sufficient. Plus, you get to use a heat gun! Always fun.

How To: Create an acid-base indicator using purple cabbage

Purple cabbage is a natural indicator and this video teaches you how to easily prepare purple cabbage in the comfort of your own home to be used as an acid and base indicator. Take one leaf of your purple cabbage, tear it into smaller pieces and place all the pieces into a beaker or bowl of boiling water for an hour. Collect the liquid from your mixture into a bottle. You’ll notice that the liquid is now dark blue or purple at which point is neutral. It is ready to be used as an indicator. ...

How To: Dissect a deer heart

Check out this tutorial on how to dissect a real deer heart! This three-part instructional video is from a lab class at a school. The teacher will teach you the anatomy of the heart, and then how to slice that sucker up. After watching this, you'll know all you need to know about a deer heart. Just don't go out and try it out on your own animal or anything. Science is learning, not being a sick bastard.

How To: Make hydrochloric acid from salt

In this tutorial, we learn how to make hydrochloric acid from salt. First, you will pour some salt into a distil flask. After this, you will add in some concentrated sulfuric acid to the salt. Next, you will let these react with each other. You will start to see gasses bubble up and the excess hydrogen chloride gas come out through the top of the tube. To create a stronger reaction, you can add heat underneath the reaction. Then, test this by exposing it to ammonium chloride. If it's the righ...

How To: Make nitric acid

Watch this science video tutorial from Nurd Rage on how to make nitric acid. They show three ways to make nitric acid based on two different chemical approaches, both of which can be done using easily accessible materials.

How To: Make Your Own Homemade Glow Sticks

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lack of batteries, were a perfect tactical solution.

How To: Make elemental sulfur (sulphur)

This video tutorial is in the Education category which will show you how to make elemental sulfur (sulphur). The chemicals you need are nitric acid and sodium thiosulphate. The reaction produces toxic SO2 gas so keep it coved with a watch glass. Put 12.9 grams of sodium thiosulphate in a beaker and dissolve it in minimum amount of water. Pour about 15ml of nitric acid in to the beaker. Let it sit in a warm place for a couple of hours and the sulphur will settle at the bottom of the beaker. Th...

How To: Use baby powder to reveal latent fingerprints

This short video shows us how to reveal latent fingerprints on a glass surface by dusting. Anyone interested in forensic science would enjoy trying it as it shows simple steps in dusting and lifting fingerprints. It does not require any chemicals and we can do it with baby powder. The steps involved are so simple and easy to follow that even kids can try it out for fun. This gives a clear idea about fingerprints on different objects like porous, non porous and metals. Enjoy viewing and detect...

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