-Matches(take three just in case you mess up)
-A clear plastic bottle,preferably an empty Lipton Tea bottle(make sure it still has a cap)
You will understand why Lipton Tea bottles are good for this soon enough.
This is my first instructable, so go easy on the comments.
I'm not liable for what you do with the matches.
Step 1: Prepare the bottle
Step 2: Test your bottle
-When you squeeze, the air pressure inside the bottle goes up, and so does the temperature.
-When you release, the air pressure inside the bottle goes back down and so does the temperature.
Squeezing the bottle was to give you a science lesson and to check for leaks. If there are no leaks, good, if there are, get a new bottle and repeat steps 1 and 2.