02_Changes in the State of Matter - Science Experiments - Solid to Liquid, Liquid to Gas, Gas to Liquid
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Now we are going to do some experiments,
to see how matter can be changed from one form to another form.
From solids to liquids,
from liquids to solids,
from liquids to gas,
and from gas to liquids.
Here I have 3 types of solids,
I have chocolate,
wax,
and butter.
One by one I am going to heat them,
and we are going to observe
how solid changes forms and becomes liquid.
We have used this candle and taken the wax out in that bowl.
Now, I am going to melt that show you
how this one is going to turn into a liquid.
We can see that solid has turned into liquid.
I have some water in this pan
I am going to put this bowl of chocolate into it
to see how the chocolate will melt.
Now we can observe and see
that the chocolate has started to melt.
I am now going to take one ice cube and put it in this bowl
to see how it will melt.
You can observe and see that the ice has melted.
Just a little piece is left.
The solid has turned back into liquid form
at room temperature, water is in liquid form.
We are now going to change liquid to gas
so, I will take some water and boil it
and we will observe how it converts into steam.
You can observe that the water is bubbling,
its boiling,
and we can see the steam rising from the pan.
So, actually the water which is liquid
is changing into gas, it's changing into steam.
We can see the steam here, rising from the pan.
We are now going to observe
how a liquid can turn into a solid.
I will pour water into this ice cube tray
and put it in the freezer and we will see how
the water will solidify and become ice.
Now, water has turned into ice
you can see that the liquid form has
changed into a solid form.
I have poured the liquid butter
in this bowl, as it will cool down
it is going to solidify.
So, we will observe that liquid butter
again solidifies and becomes a solid.
I have poured the wax in the bowl
and as it will cool down it will solidify.
We can see that the wax
has hardened, it has turned from a liquid state
to a solid state.
Similarly, the butter here, has also hardened
you can see that the liquid has turned into a solid
at room temperature.
I have place this cover, here you will see
on the cover, that there will be some tiny small
water droplets which is an example of
gas turning into liquid.
I was holding the cover for a few seconds,
and you can see that the steam
has converted back into water.
Because the temperature of this cover
was cooler than the temperature of the steam
when the steam hit the cover,
it converted back into
water, the gas turned back into water because
the temperature changed back to a cooler temperature.
If the temperature of this cover
would have been the same as the steam
it would not have converted.