Hello I am Jared. welcome to FunScienceDemos. Today we have a little bit of a science
puzzle for you and it has to do with air. Here it is.
I have a balloon inside this bottle and the balloon is filled with water.
How did I get the balloon into this bottle? I will give you a hint, it has to do with
air. So I know what you are thinking,
balloons filled with water are flexible. I can squish them, I can squeeze them, I
probably just squeezed the balloon into the bottle.
Let us see how that works. I have a balloon about the same size as the other one,
a bottle with the same size opening. I am going to try and push it in. That did not work too well, did it? So, we have cleaned up
after a little water explosion that clearly did not work. What happened is,
our balloon, I do not think you can see it - may be a little bit, the balloon actually
ripped as I was trying to push it into the bottle. That is not the answer you are
looking for here. The answer to this puzzle involves air, and to get to the
answer we need to explore air, and our exploration begins with a balloon and a
bottle.
Let us take a closer look and see what we can find out. So we start with a balloon
and a plastic bottle. Any plastic bottle will do as long as it does not have any holes
in it besides the opening. All I need to do is do
squish the balloon together and stuff it down into the bottom.
Stretch the balloon's opening over the top of the opening the bottle. I have it all
set up, now let us get ready to explore air. Well, where is the air? I have air all
around me, pushing down on me, and I also have air inside this bottle. I cannot see it
because air is invisible. Now, air may be invisible, but through science we discovered that air
is matter, and air takes up space. So air inside this bottle is matter, and it takes up space. so
what will happen if I try and blow this balloon up? It is not too difficult. I can blow up a
balloon. I did not really have any problems doing that, but what will happen when I try
to blow up this balloon and add more air to our bottle? what do you think? Let us
find out. I am not faking. I am actually trying to blow air into this balloon and
it is not working,
why? Because the air inside this bottle is taking up all that space. it does not
let me blow that balloon up. so I know air inside this bottle takes up space, but now
I want to use a different bottle and try it again. But there is one thing
different about this bottle, and it is not the size or shape, there is something else
that is different.
we want to see if you can find out. So I am going to take the balloon off of this
bottle, same balloon, move the bottle off, now I have a bigger container, I am
going to stuff the balloon into the bottle. I am going to stretch the balloon's opening
over the opening of the bottle. See, there is one thing different about this bottle, watch
what happens when I try and blow this balloon
up. Why was I able to blow this balloon up? Well, there is air inside this bottle. that air is taking up space. why was I able to add more air to this
bottle? What do you think? If you listen carefully there is a clue. I am going to do this two more
times, listen. It sounded like air was moving. Air actually was moving. Well, how is
that air able to move? Well, if you look carefully down here, there is a hole in the bottle
I will show you with this little stick, this stick actually can go through the hole. What
did that hole allow the air inside this bottle to do? It allowed the air - as I blew
into the balloon - that balloon forced the air and pushed the air out of the bottle, watch
this. I have the empty plastic bottle, I line my hole up with a bottle, I am going to
blow in, the air rushed out of this bottle and moved that plastic bottle off
the table. There is no air trapped inside the bottle. the air could escape out, so
now let us explore air a little bit more. We are going to do the same thing but
change one little thing. Same bottle, same balloon, hole in the bottle. I am going to
blow the balloon up, put my finger over the hole, and watch what happens. Once I put
my finger over the hole the balloon actually stays blown-up. look at the top.
you can see there is an opening in the balloon, but the air is not coming out.
watch this! I can drop my stick down. It is open, but the air is not coming out. Why
is that happening? So what is really happening here is that I have my finger
over the hole. What happened with that hole? Well that hole allowed air to move in
and out. When I put my finger over the hole, air cannot rush back into the
bottle and push the air
in the balloon out into this room. What happens when I take my finger off the hole? Air
should be able to move in,
push the air out of the balloon. Let us see science in action.
It worked, and I could even hear the air moving. Another way to do this is to use
this hole to take the air out of this bottle, and let the air in this room
blow that balloon up. I am going to inhale lots of little times. it is going to look
like I am kissing the bottle but I am not, I am going like this, I am taking all the air
out of the bottle. watch what happens to the balloon. Here we go.
I had to take all the air out of that bottle, and the balloon looked like was magically blowing up. It was not magic at all, it was
air doing all the work. So we are close to figuring out the answer to our puzzle.
Thinking back to the water balloon in the bottle, all I need to do is the same
thing we just did, but add some water from this pitcher. Here we go. find the
hole, now what do you think the next step is? I have an open balloon, I have a
pitcher of water, all I have to do is pour water from the pitcher into the balloon and then
tie it off. Let us do this.
Now at this point you want to be very careful because, what would happen if I take my finger off of the balloon? Air would rush into
this bottle and force not just air out of the balloon, but also the water that is
inside. So I am going to stick my finger in grab it, I am safe to release, tie off my
balloon and now I have a balloon in a bottle.
Why? because of AIR. Through science we discovered that air is matter, and it takes
up space. we can do a lot of fun things with air. If you want to learn more about
air, check out our links in the video description. Science is so cool, sometimes
it is a little bit wet. Thanks for watching!