This reaction is between metallic magnesium and carbon dioxide. Magnesium reacts with oxygen in the air to form magnesium oxide, but when the only source of oxygen is from CO2 the reaction becomes much more energetic. The products are white magnesium oxide and blck carbon. 2Mg + CO2--> 2MgO + C

The heating of water in the microwave can actually be dangerous. Water can be superheated if there is no imperfection for the bubble to form on.

FORMER NASA astronaut and moon-walker Dr Edgar Mitchell - a veteran of the Apollo 14 mission - has stunningly claimed aliens exist. And he says extra-terrestrials have visited Earth on several occasions... more inside

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This chemical volcano is a result of the decomposition of Ammonium Dichromate.

This amazing video demonstrates what would happen to a marshmallow man in space. Since space is a vacuum the air inside the marshmallows expands due to the absence of air. Watch how big this guy gets.

The volume is a little loud. Sugar (a carbohydrate) is dehrydrated with concentrated sulfuric acid. Since a carbohydrate was once considered just hydrated carbon, if you remove the water, carbon would... more inside

Dry Ice has nothing on this. Mentos and diet coke doesn't come close. This is liquid nitrogen. Liquid nitrogen explodes a soda bottle in just a few seconds. Enough to send a bucket a few hundred feet into... more inside

The Levitron spins and surfs on magnetic waves! Pass your hand above, underneath, and around the top. It will continue to spin and float only touching air! The LEVITRON floats free in space, supported only by the repelling magnetic force produced by permanent magnets.

All the alkali metals react with water to produce elementary hydrogen and the corresponding alkali hydroxides. The reactivity increases with increasing periodic number The reactions 2 Na + 2 H2O ----> 2 NaOH + H2 2 K + 2 H2O ----> 2 KOH + H2

Sometimes called the Smart Alloy, Muscle Wire or Memory Metal, is an alloy that "remembers" it shape. You can reshape the wire, but when heated it returns to the preset shape. Ever wonder how someone bends a spoon with their mind? Same metal.

Ferrofluid is a magnetic liquid. It is composed of tiny nanoparticles of magnetic material. It flows like a liquid and attracts to a magnet.