Bomb This experiment involves any flammable powder, a paint can and a lit candle. Inside the sealed paint can, a dangerous explosion occurs when an air suspension of a flammable powder is ignited. Very nice, very loud and the ceiling may need some repairs. This is great for a chemistry demonstrations for surface area reaction rates.
Water In The Microwave
The heating of water in the microwave can actually
be dangerous? Watch the video and see the potential hazards involved
with this everyday activity. Water alone should never
be heated in a microwave. Watch and find out why.
Making Imitation Silly Putty
matter how many times I do this, I never get bored making it.
Imitation silly putty. It acts like snot but it isn't sticky. It flows
like slime but isn't greasy. The best part
is you can make this "Silly Putty Like" substance at home.
All you need is Borax and Glue.
Electroplating A Quarter
Quarters are nice and silvery. What if they looked like a big
penny? This video shows you how to electroplate metal objects.
The term "Thermite" refers to the mixture of aluminum
and ferric oxide used in this experiment. It is sold commercially and is
used for such applications as railroad welding
and incendiary bombs. Rust and aluminum are combined and ignited with a
magnesium ribbon. Molten iron is produced and lots of energy is
released. This demonstration produces heat at above 2800F or 1500C.
Fe2O3 + 2 Al --> Al2O3 + 2 Fe Safety-This is an extremely DANGEROUS
reaction and should only be done by trained professionals. Since YOU are
not a trained professional DON"T try it.
This demonstration is used to confuse and spark
the interest of all my students. I usually throw the water at them at
the end of the demonstration. Unfortunately there were
no volunteers when I made this.
Enjoy the trick, I posted how to do it in another movie, if you are
Flame Thrower AKA Dragons Breath -Lycopodium powder explodes into flames when it is exposed to fire in dust form.
Project #2 Boiling @ Room Temperature
Can water boil at room temperature? For water molecules to
escape from a liquid and become a gas they have to overcome atmospheric
pressure. ... Ordinarily,
that means that you have to heat the water up to 100 degrees Celsius,
where its internal (vapor) pressure becomes 1 Atm. However if the
atmospheric pressure is lowered (like in a vacuum jar) the water can boil
at a much lower temperature.
WARNING*** WATCH THE VANISHING WATER TRICK FIRST This video reveals
how the vanishing water trick is works. It is not magic but chemistry.