Hello! I am Jared. welcome to Fun Science Demos.
You know one of my favorite book series is the I Spy series.
You open it up and take a look, what is so cool about
this book is that they take random objects and just spread them
on a page and then you have to find certain objects hidden right in front of
your eyes. You just have to search around. It is a great book series. the great thing
about these books is that the objects that I am looking for are right there in
front of me. But sometimes we do not see them. Well, here at fun science demos we
think the same thing is true about science. Science is everywhere,
science is right there in front of our eyes, but sometimes we just do not see it.
So here at fun science demos we came up with something we like to call "I try
science" to get us to really see the science that is right in front of us.
So I went into my kitchen and I just took a whole bunch of random things. all
these different objects right in front of us, and we are going to see if we can
try to find the science in these things, specifically the science of simple
machines, in some of our other videos that we have actually talked about. Some of those simple machines - some things like a lever or an inclined plane or a wedge
and a wheel and axle. And we have also talked about pulleys. well today we are
going to try to find some of those simple machines in these everyday
objects by trying them out. "I try science" so let us start by trying this grater and
see what happens when I try to run the apple over it. here we go!
Now I have made a mess but making a mess is a part of science. but what do we spy?
What do we see after we have tried this? Well I see that
little parts of the apple were actually removed from the other part of the apple.
to me after trying this, I think that this grater is actually a wedge. So this
grater is a simple machine it is a wedge that separates this apple into smaller
slices. Next I am going to try this knife, and what do you know this knife does a
great job separating this apple also in to smaller pieces. So what do you think
this knife is? What kind of simple machine? I think it's a wedge. so now I
have a chunk of apple and I want to see if I can try to get this into a smaller
piece of apple. I am going to try this now, I know a lot of people normally will use
this to cut pizza into smaller pieces but I want to use this to see if I can
cut my apple. so let us give it a try.
Wow, that made the cutting so much easier, well that is exactly what simple machines do. they make our work easier, and you can see I have separated this apple into
smaller pieces, so that must mean this is a wedge. But did you notice something
else as I pushed it? watch carefully, this rolled. it spins. what kind of simple
machine do you think that is? So, we have zoomed in so you can see our
wheel spinning, and I just gave you a clue, this simple machine is a wheel and
axle. So now I have a small pile of apples but I do not want to get my hands
messy picking it up, so what can I use? I can use my trusty tongs. I can reach down
and pick up a chunk of apple. What kind of simple machine do you think these
tongs are? these tongs are a lever, and they are going to help me put all of this
apple, clean it up, and put it into this jar so, here we go.
Unscrew the lid and, wait a second, think about what I just did. i unscrewed the
lid. I have just found another simple machine at work right in front of us,
what kind of simple machine do you think this lid is?
We have zoomed in so you can take a closer look at our jar, and I want you to look at this glass line. it slowly goes up as it wraps around the jar. that is actually
an inclined plane. And what that allows me to do is to screw the lid on and off,
and now I can put my apple into my jar. so now I can use my lever to put all of
my apple into the jar, and then I can use an
inclined plane to seal it tight so I am ready to go.
"I try science" gets us searching for science that is right in front of us but
sometimes we just do not see it. can you try to go into your kitchen and see
if you can find the simple machine? Science that you might use every single
day without even realizing that you are using science. Science is so cool,
especially when it makes our work easier. Thanks for watching!