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