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Fiber Optic Water
A 532nm, 50mW laser is shot
through a stream of water. The amazing fiber optic internal reflective
properties of water is exposed.
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Extreme
Elephant Toothpaste
Elephant toothpaste is the name given to the catalyzed
decomposition reaction of 30% hydrogen peroxide that uses soap
to collect the oxgen gas that is produced. It is a favorite
of most students at chemistry shows.
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Sodium and Potassium In Water
A
very violent reaction of sodium and then potassium with water.
2Na + 2H2O --> 2NaOH + H2
2K +
2H2O -->2KOH + H2
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Making
Water Boil Using Ice
Ice
in placed on a sealed flask and the water inside starts to boil.
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Muscle Wire (Nitinol) in HOT Water 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.
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Flammable
Ice
Ice is added to a dry Pyrex bowl. When the Ice melts the water reacts with the calcium carbide (place on the bottom) to produce acetylene gas and calcium hydroxide. The acetylene gas then explodes into flames when a match is place on top. It will continue to burn even as the ice melts because it keeps producing acetylene until the calcium carbide runs out.
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Nitric Acid Acts Upon Copper
AKA-Penny Operated Nitric Acid Fountain
Nitric acid acts upon copper to yield nitric oxide in an
exothermic reaction. The expanding gas displaces water from another
flask; actually bubbles in this set up. When the gas cools, the
water is drawn back into the flask, dissolving the nitric oxide
and forming a blue solution with the copper ions still there. Very
cool reaction.
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Underwater
Fireworks
Chlorine gas is bubbled up along with acetylene gas through a large graduated cylinder filled with water. Where the bubbles of the two collide, an instantaneous, bright flash of light occurs.
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Analyzing
the Drinking Bird
When was the last time you saw one of these? This
classic childrens toy seems very simple but the chemistry involved is
very interesting. Do you know how it works?
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Growing
A Mini Stalagmite
A
supersaturated solution of sodium acetate is dipped from a buret onto a
watch glass. Watch it grow.
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Make
Gold Pennies
Turn
pennies from copper to silver then to gold with a few household chemicals.
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Imaginationland Creatures in a Vacuum (Easter
Demo)
These cute creatures from Imaginationland are truely evil and are
sentenced to the VACUUM CHAMBER. Watch Boyle's Law in action as these
marshmallow creatures get what is coming to them.
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