Science Articles for Kids
Essay by Kill009 • July 31, 2011 • Essay • 530 Words (3 Pages) • 2,420 Views
T
here is a lot to be learned from
a bubble! Bubbles can teach us
about life, light and strength.
The wall of a bubble has three parts.
There is an outer wall made of soap
or detergent, a center wall made of
water, and an inner wall that is also
made of soap or detergent. The
inside of the bubble is filled with air.
This structure of the bubble's wall is
very similar to that of membranes
found in living creatures like us.
Did you ever wonder how the
food you eat gets from inside your
stomach to inside your muscles? To
get to your muscles, the food must
first be digested. Then it must pass
through a set of membranes into
your blood. The nutrients then
circulate through your arteries to
your muscles, where they pass
through another set of membranes
into your muscles.
The next time that you blow bubbles,
look for a cluster of them, and watch
closely. If they don't pop too quickly,
you will see that the air from the
smaller bubbles will pass through the
bubble wall into a larger bubble on
the other side. This is very similar
to the way that oxygen passes from
your lungs through a membrane and
into your blood stream. The larger
bubbles are sturdier, because their
walls are not curved as much as
the walls of smaller bubbles.
Bubbles can also teach us
about light. The light from
the sun is made up of
many different colors.
Mixed together, they
look white. However,
it is possible to separate
the different colors of light
from each other with a prism.
Small drops of water or ice crystals
can work like a prism. You have
seen this for yourself, if you have
ever seen a rainbow.
The wall of a bubble can work the
same way. That is why bubbles are
iridescent. When light hits a
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