Scienceshow/Guides/Making Clouds with Liquid Nitrogen

Purpose
Clouds are easy to make with Liquid Nitrogen (LN).

Status for this guide: Not yet finished

Safety Class
(Untrained people can do this experiment under supervision and guidance)
 * Dangerous - Please be careful when handling mixtures of boiling water and liquid nitrogen. Don't shake it and or move violently around.

Required Safety Equipment

 * The show performer: Wet towel and a bucket of water in case someone tips the kettle.


 * Audience/participants: Nothing.

Materials
You'll need the following


 * Liquid nitrogen
 * Two plastic glasses or some other container to handle the nitrogen in.
 * Electric kettle with boiling water
 * Transparent plastic tube

Procedure

 * Preparation time 5 min for the water to boil
 * Performance time 5 min
 * no clean-up time

Step by step
boil the water in the testtube
 * 1) Start by…


 * 1) End with explaining how to properly get rid of waste products

Alternative methods
Other ways to do the experiment

Dangers
Now the reader knows the experiment, give a closer description of possible dangers.


 * Important, be aware of…


 * Consider the…

Other Factors
What other things can sometimes affect the result of the experiment. Maybe the humidity or cleanliness of the glass ware is an issue.

Show notes
What to consider when preparing. How to make it more spectacular. What can be difficult to achieve 'on stage' that normally is easy when practising.

What other experiments are good to that have in relation to this one?

What should you beware of that can make the experiment boring?

What's taking place
Here you can give a more quantitative and mathematical description of what happens. What fundamental laws are involved or demonstrated by this experiment etc. Remember to explain jargon/expressions from the laboratory.

In the real world
Do you meet things like this in daily life - give examples!

Uanswered Questions
Things we do not yet know and should find an answer to - maybe how it actually works etc.

More Information

 * | Websites with more info the end.

Remember
This is just a guide and it can contain both errors and omissions. Always make experiments in small versions before proceeding to larger quantities where things could become dangerous. Ask around if you have any doubts before starting and do not start on a procedure you do not feel you understand and is qualified to perform.

This opensource material is from The Wiki Science Show Book in English. It is based on the template  for new guides.

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