Science Experiments: Page 14

Fist full of pennies weighing you down?

The WonderHowTo Awards winners are in. The votes have been tallied.

Need a way to prove your strength? Only superheroes have the power to tear metal, right?

Some may call this a microwave prank. There won't be much left of the microwave...but what the heck...let's call it science.

Hotly contested video. The question remains, is the science behind the potato fire bonafide or bogus? We have yet to try it over here at WonderHowTo, and the comments thus far haven't indicated a solid verdict. Try it out and let us know! Is this a hoax? Or can you truly start a fire with a potato, salt and toothpaste?

Yes, plasma. The fourth state of matter.

Recession? What? We have money to burn.

Hello, potato plastic -- goodbye, petroleum plastic!

But elephants don't need toothpaste, do they?

Watch this science video tutorial from Nurd Rage on how to make a test tube thunderstorm. They show you how to make the thunderstorm in a test tube using alcohol, sulfuric acid and potassium permanganate.

Watch this science video tutorial from Nurd Rage on how to get zinc, carbon rods and MnO2 from lantern batteries. They show you how to get zinc, carbon electrodes and manganese dioxide from a lantern battery.

This flame you CAN hold, without burning your skin off. Learn to make fireballs you can hold in your hand. This amazing video tutorial shows you how to do it. All you'll need for this little science experiment or fiery weapon is 100% cotton cloth, scissors, lighter fuel, cotton string, and a needle. Be careful to follow the directions in this how-to video carefully otherwise you'll really be playing with fire.

Process of making Hydrochloric acid using table salt and concentrated sulfuric acid. Consentration of the syntethised acid was 2.7M or 10%. Music: 1200 Mics - Rock into the future.

Watch this science video tutorial from Nurd Rage on how to make a lithium thionyl chloride battery, which is capable of generating 2.8v with enough current to power a LED.

MAKE and Kipkay brings the do-it-yourself mindset to all the technology in your life. Make Magazine celebrates your right to tweak, hack, and bend any technology to your own will.

Lying on a bed of nails...It's a science trick we've all seen in the movies and according to science guy Jason Lindsey it can be done if you use science. This uses balloons to demonstrate how someone can lay on nails and not be a bloody mess.

Watch this science video tutorial from Nurd Rage on how to test if a fertilizer has nitrates rather than urea or ammonia as its nitrogen source.

Watch this science video tutorial from Nurd Rage on how to make iodine from an alkali metal iodide, hydrochloric acid (HCI), and hydroxide peroxide (H2O2).

See what happens when you mix a few cooking ingredients into water! This video tutorial will show you the trick to stiffen water with flour and salt. It's a pretty simple trick, and you don't need to be a science genius to do it. Just mix a little salt and flour together, then dump into the pre-boiled water and watch as it hardens completely stiff.

Watch this science video tutorial from Nurd Rage on how to restore silver with electrochemistry. You can restore old silver with aluminum foil or a battery by simple electrochemistry.