Liquid nitrogen is the most amazing thing ever, and it will also help you in making your party a total blast. It is -321F and can cause severe tissue damage after prolonged exposure. So, be careful and take precautionary measures.
Make sure you wear proper safety gear to avoid frostbite and inhalation of the icy vapor. While using the liquid nitrogen, the exposed areas of the skin must be covered. The phase transition (liquid to gas) is rapid. The pressure builds up swiftly so, do not enclose it in a sealed container. Also, try the activities in a properly ventilated area.
Warning: Adult Supervision required!
First of all, be extremely cautious while handling the liquid nitrogen.
Step 1: Fetch a container for pouring liquid nitrogen and grab a box of Neapolitan icecream, specially this one because it contains 3 flavors.
Step 2: Separate each of the flavors and allow them to melt.
Step 3: Meanwhile pour liquid nitrogen in a bowl. The temperature of liquid nitrogen is -321ºF (-196ºC), which means it is well below the freezing point.
Step 4: Start dipping each of the flavors and then scoop out the pellets into the serving bowl.
There you go! Everyone attending the party will be amazed.
Step 1: Fill a bowl with cute mini marshmallows.
Step 2: Pour liquid nitrogen on them.
Step 3: Allow them to soak-in for 30 seconds. Your sub-zero chill pills are ready. Grab a bite and observe the amazing effect of your breath after you crunch it in your mouth.
The guests will have a great time breathing out fog.
Step 4: Take another marshmallow and try smashing it with your knuckles.
Step 5: It will shatter into many pieces.
Ready to make some noise?
Step 1: Take a party horn and a bottle with a narrow neck.
Step 2: Put some hot glue at the bottom of the party horn so that it can be perfectly fixed to the narrow end of the bottle.
Step 3: Pour liquid nitrogen carefully into the bottle in such a way that it is quarter full. Then add a shot of hot water.
Step 4: Attach the horn and listen to the noise. It's totally worth it. Now invite your friends to join in and make some noise.
Step 1: When there isn't enough pressure left in the bottle to blow up the horns, remove them and pour another shot of hot water to the bottles.
Step 2: Place the balloon over the mouth of the bottles.
Step 3: There will be enough pressure shooting up.
Step 4: This will inflate the balloons and save you a lot of breath.
This is totally cool. Right?
Step 1: Grab a bag of your favorite chips.
Step 2: Pour them in a bowl and add liquid nitrogen. Allow them to sit for a few minutes. They are not boiling but actually cooling.
Step 3: When the boiling effect ceases, scoop them out into a plate.
Step 4: If you try to eat them immediately, you will feel that the chip is biting you back. But, if you allow them to stay in your mouth for a minute, it will take the chip-eating experience to a whole another level.
Step 1: Cut the top of a soda can and pour the liquid nitrogen into it.
Step 2: Hold the flame near it and it will go out.
Step 3: Leave the can as it is for a few minutes and it will suck all the oxygen present in the air and trapping it at the bottom.
Step 4: Now try dipping a super strong magnet into the liquid and as you pull it out, you will observe that the oxygen gets stuck to the bottom of the magnet, and gradually boils off.
A nice trick to leave the audience awestruck!
Caution: Must be done OUTSIDE!
Step 1: Save a candle from your birthday cake.
Step 2: Hold the fame over the can.
Step 3: You will observe that the flame starts to burn brighter as the nitrogen has been evaporated leaving the oxygen behind.
Step 4: Oxygen is very reactive and if you drop the candle in the liquid, it will get so hot just in a few seconds and the metal will begin to melt. And the it explodes spilling the molten metal all over the place.
Step 1: Take a few blown up balloons.
Step 2: Soak them in the container of liquid nitrogen.
Step 3: Scoop them in a bowl and watch them grow.
This will definitely impress all your guests!
Step 1: Fill the balloon with helium gas.
Step 2: Soak it in the liquid nitrogen like before.
Step 3: Scoop it out and within a few seconds, it will fly upwards.
Prepared to be amazed!
Caution: Spit it out! DO NOT swallow.
Step 1: Take a shot glass.
Step 2: Pour some liquid nitrogen.
Step 3: Put it in your mouth and spit it out immediately.
Step 4: The faster you spit out, you will gain the Kryptonian power of super-breath.
Give your guests the same magical powers!
Image courtesy: mad-science, Instructables