7 “Super Cool” Demonstrations with Liquid Nitrogen

the demonstrations you’re about to see
are for educational and entertainment
purposes only and are not intended to be
duplicated
get out your container of liquid
nitrogen and grab a box of Neapolitan
ice cream this is the type of ice cream
that has three flavors in one so go
ahead and separate the colors into
different containers and give them a
couple of minutes to melt in the
meantime we’ll need to fill a bowl with
liquid nitrogen this stuff is minus 321
degrees Fahrenheit which means it’s well
below the freezing point of your party
guests now if you try dripping your
flavors in one drop at a time you’ll
notice they instantly beat up and freeze
solid when you’ve got all the flavors
you need simply scoop the tasty pellets
into a serving bowl and voila you’ve got
a futuristic icecream ready to serve and
enjoy load up a bowl with mini
marshmallows and sprinkle liquid
nitrogen over the top the marshmallow
should freeze instantly but go ahead let
them soak for about 30 seconds just to
be sure the end result is a subzero
chill pill that’s perfectly fine to eat
and lets you see your breath when you
crunch into it now if you flash freeze a
larger marshmallow rather than eating it
try placing it on a plate and giving it
a smack it’ll shatter into a thousand
pieces for this trick you’ll need a
glass bottle with a narrow neck and a
party horn with a little hot glue added
around the bottom when it gets placed in
the bottle it should make a nice snug
fit now carefully pour the liquid
nitrogen so the bottle is a quarter full
followed by a shot of hot water you can
see that when the horn is pressed into
place it becomes a crazy noisemaker that
blows all on its own if you get a few of
these things going you can really make
some noise when there isn’t enough
pressure to keep the horns going try
adding more hot water to the bottle and
place a balloon over the top there will
still be enough pressure shooting up to
inflate the balloons all on their own
it’ll save you the effort and the gas
inside is completely harmless cut the
top off of an empty soda can and fill it
up with more liquid nitrogen if you let
the can sit for a few minutes the
extreme cold will pull oxygen out of the
air and trap it at the bottom now try
dipping a super-strong magnet into the
liquid and when you pull it out you’ll
have liquid oxygen stuck to the bottom
at least until it warms up and boils off
blow up a bunch of little party balloons
and soak them in a container of liquid
nitrogen so they shrink down to almost
nothing then quickly scoop them all into
a bowl and stand back to watch the magic
rising from a layer of mysterious
flowing fog your little balloon babies
begin to grow right before your eyes
spilling over and covering the table
they grow up so fast don’t they fill one
of your small balloons with helium and
shrink it down in liquid nitrogen like
you did the others now scoop it out and
place it down on a table to see what
happens you’ll notice that after a few
seconds it suddenly pops upright and
takes off like a little UFO your friends
should be impressed to see your little
creation grow up and begin to fly well
now you know seven different party
tricks with liquid nitrogen if you like
this project perhaps you’ll like some of
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