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Did You Know?
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You have probably heard that because of the rotation of the earth, water goes down
the drain in sinks, bathtubs or toilet bowls counterclockwise in the northern hemisphere
and clockwise in the southern hemisphere. Don’t believe it! One can find both counterclockwise
and clockwise flowing drains in both hemispheres. The Coriolis force is simply too
weak to affect such small bodies of water.
The French engineer Gaspard Gustav de Coriolis (1792-1843) first described this
force caused by the earth’s rotation. It responsible for air being pulled to the
right (counterclockwise) in the Northern Hemisphere and to the left (clockwise)
in the Southern Hemisphere.
The Coriolis Effect is the observed curved path of moving objects relative to the
surface of the Earth. Hurricanes are good examples. They curve to the right in the
northern hemisphere and to the left in the southern hemisphere. What makes the hurricanes
move in this way is the Coriolis force. The Coriolis force is too weak to operate
on the moving air at the equator. In fact, the Coriolis force pulls hurricanes away
from the equator.
ScienceKit.com
has the Coriolis Effect & Foucault Pendulum Set
and the Coriolis Effect Kit
to help students learn more about this extraordinary effect of the earth's rotation.
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Free Examples of High School Science Fair Projects |
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Here is where you will find a free list of High School Science Fair Projects.
The schools, organizations and individuals listed here have posted their finished
science fair projects online giving you some great ideas and examples for your own
project.
Many of these science projects use materials that are available around the house,
making them very cheap, or completely free! Others require materials that
are available from reputable suppliers of science products like Edmund Scientific and ScienceKit.com.
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Exploring Minds
- Science Fairs Section |
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Exploring Minds is a program created by Merck Frosst, one of Canada’s leading research-based
pharmaceutical companies.
The Science Fairs section of Exploring Minds has a wealth of information
that is useful for your science project.
There are two sections of particular interest. The first section is titled "A
Few Projects." Here you will find
nine complete science fair projects. The second section is titled "1001
Ideas, Thousands of Projects!" While not complete science fair projects,
there is a lot of great material here that will give you ideas to develop your own.
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E-Journal of Student Research: Science |
The Science area located in the E-Journal
of Student Research at the NSRC
(National Student Research Center) has
hundreds of abstracts of student research projects from Elementary through
High School levels. Although these completed projects are basically in short form
and without pictures, they are fairly detailed and should serve as good examples
of free science fair projects.
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