Hot Science Experiments How-Tos

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 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 boric acid from borax

This is a video tutorial in the Education category where you are going to learn how to make boric acid from borax. For this experiment you will need borax (disodium tetra borate) and conc. hydrochloric acid. Take 25 ml of hydrochloric acid and dilute it with 75 ml of water. Next take 6 - 7 gms of borax and dissolve it in boiling water. Now add equal amount of hydrochloric acid. Crystals of boric acid will start forming. They are completely insoluble in cold water. After about half an hour, fi...

How To: Reveal latent fingerprints on paper & other surfaces

In this tutorial, we learn how to reveal latent fingerprints on paper & other surfaces. The item you will need to do this is crystal iodine and plastic sheeting to protect your work surface. Place your specimen into a plastic container with the iodine, then put the top on and let sit, placing your hand under to warm it up. Within a few minutes you will see a violet color vaporizing in the container. When finished, you will be able to take out your specimen and see the fingerprints that are al...

How To: Build an electromagnet

This video demonstrates the relationship between electricity and magnetism and shows how to construct an electromagnet using a 4 inch iron nail, 5 meters of copper wire and a 1.5 volt AA battery. Electromagnetism was discovered by the Danish scientist Oersted. Electromagnetism is the science behind electric motors, solenoids, speakers and electromagnets.

How To: Light candles with a microwave oven

Say you're hosting a birthday party and the birthday girl's cake needs to be lit up, but you've just run out of matches. What to do? While you can certainly go to the store and purchase more, doing so would take at least half an hour (an eternity to wait for little kids), it's probably easier to make a flame with what you've got at home.

How To: Make an electro-magnet with only three things

An electromagnet is a fun, cool science experiment that you can easily make at home. In this tutorial, learn how to make a powerful electromagnet with only three pieces! And the best part is, you probably already have these items in your house or garage! So, why not gather some supplies and try making an electromagnet? You will definitely impress your class and friends.

How To: Boil water at room temperature in a vacuum

This is a super cool way to learn some science while combating spring break or summer break boredom. This science video teaches you how to boil water at room temperature. Obviously this won't work in the normal conditions in which you boil water. But if you place the water in a vacuum, where the atmospheric vapor pressure is lowered, water can boil at a much lower temperature.

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: Construct a vinegar battery and power a calculator

Using only vinegar and a few simple materials, it is possible to construct a working battery. This science video tutorial explains how to construct and use a battery like this to power a calculator. A good science project as part of an introductory electricity course. This project can be used as a science fair project or merely for fun. If you've ever wanted to make your own battery, know is the time, this science experiment will show you how.

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: Grow a crystal garden

A crystal garden is something that not everyone has. Grow a crystal garden for a science project, or grow it to add a hint of magic to your own herbal or vegetable garden. Show it off to friends and family. Watch this video to learn how to grow a crystal garden for your personal use.

Prev Page