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20.1 THE ATMOSPHERE
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The Atmosphere
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This
page from Planet Diary
provides links to activities and informational sites dealing with the
atmosphere.
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WW2010
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Developed by the Department of Atmospheric Sciences at the University
of Illinois Urbana-Champaign, the Weather World 2010 project
integrates current and archived weather data with multimedia
instructional resources. The
Online
Guides provide a collection of instructional modules in
meteorology and remote sensing plus curriculum projects and classroom
activities. The
Archives contain case studies of memorable weather events.
20.2 ATMOSPHERIC
PRESSURE
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Pressure
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To
learn more about atmospheric pressure, check out this module from the
Meteorology Guide. Sections include:
Definition of Pressure,
Pressure with Height,
Isobars,
High Pressure Centers, and
Low Pressure Centers.
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Controlling Atmospheric Pressure
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Interested in performing a low-pressure experiment? This
Scientific American article explains how to create your own
spherical altitude chamber.
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How the Weather
Works
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These
links from the USA
Today Weather
site examine various weather phenomena, including jet streams, El
Nino, the greenhouse effect, and dust storms of the Sahara.
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CNN Weather Maps
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The
CNN weather maps page provides forecast maps and satellite images for
the entire world.
20.3 THE SIMPLE
BAROMETER
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Balloons
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What
is a barometer? Is our atmosphere a fluid? Find out the answers to
these and other questions in Louis A. Bloomfield's online book
How Things Work.
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How a Barometer
Works
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How
does a barometer work? Learn all about barometers in this page from
the USA Today
Weather site.
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Make a
Barometer
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Do
you know what the air pressure is today? Find out by using your own
barometer. Make a barometer from a coffee can by following these
instructions from the Miami Museum of Science.
20.4 THE ANEROID
BAROMETER
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How an Aneroid
Barometer Works
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What
is an aneroid barometer? How does it work? Find out in this page from
USA Today.
20.5 BOYLE'S LAW
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Pressure/Volume
Calculator
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This
Javascript calculator from
Scuba Physics
uses Boyle's law to determine the pressure and volume of a gas for a
given underwater depth and temperature.
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Gas Laws
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This
is a nice introduction to the gas laws, including Boyle's law. This
lesson is part of
ChemWeb,
an online introductory chemistry course.
20.6 BUOYANCY OF
AIR
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Ever Eastward
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Soaring around the world in a balloon is a romantic notion. Yet no one
has done it. In this Scientific
American feature article, learn about the new technologies that
may soon allow this feat to be accomplished.
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Hot Air Balloon
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Find
out how a hot air balloon works in this page from NASA's
Beginner's Guide to Aeronautics.
20.7 BERNOULLI'S
PRINCIPLE
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Balls, Birdies, and Frisbees
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How
does the trajectory of a ball change when you give it a spin? Why are
there dimples on a golf ball? Learn the answers to these and other
questions in Louis A. Bloomfield's online book
How Things Work.
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Bernoulli Levitator
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In
this
Exploratorium Snack activity, you will use a hair dryer and an
index card to demonstrate Bernoulli's principle.
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Bernoulli's
Principle
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Check
out this page from the
Aeronautics Learning Laboratory for a lesson on Bernoulli's
principle, including an animation of a Venturi tube.
20.8 APPLICATIONS
OF BERNOULLI'S PRINCIPLE
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Airplanes
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How
does wing shape affect an airplane's flight? How does a paper airplane
fly? Find out the answers to these and other questions from Louis A.
Bloomfield's online book
How Things Work.
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Ping Pong Ball Curves
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Learn
about curveballs and Bernoulli's principle in this page from NASA's
Beginner's Guide to Aeronautics.
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