Hi I'm Benyamin
Today we are going to do a really neat experiment
we are going to learn how to make cloud inside of a bottle
and you need a few materials that you can usually find around the house
Now, all you are going to need for this experiment is:
1- some rubbing alcohol, this is regular alcohol that you can buy from drug store or supermarkets
2- You need an empty plastic bottle that you've washed out and cleaned out
3- You need a bicycle pump
4- You need a cork that you made a hole in the middle of that like this
Step one: open the cap of the bottle and pour just a little bit of the alcohol inside it
Step Two: Close the cap of the bottle after we've got the alcohol in and then just rotate the bottle like this
Step Three: Ok in this step what we want to do is we want to take our bicycle pump and we want to be able to force
air inside of this container
okay as you see this part of the bicycle pump is not the right size of the bottle
so what I'm going to do to help me force air in there is I'm going to use that cork
then what we are going to do is hold it there with my hands while
I force air and while my friend manually pump it up
then when I release the pressure when I move my hand away
the air pressure inside that we've pushed in there is going quickly
escape and if we've done it right we wanna make a really nice cloud here
Step four: Now,with my hands I'm gonna force this air pump
against the bottle and my friend gonna grab the bicycle pump and
then he will start pumping
Okay, now I am gonna count from 1 to 3 then I let air goes out from the bottle
Okay, 1 2
look at it, it's very very nice cloud
Now, what we have here is the water vapour inside the air that was
inside of this bottle quickly condense into basically cloud
that's what clouds are there