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Magic of Air


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Program Description
Program Title: Magic of Air
Program Length: 50 Minutes
Overview Can you feel the pressure being exerted on your body as you read this? Depending on your altitude you have at least 14.6 pounds of air pressing down on every square inch of your body. Air pressure at sea level is 14.6 lbs. per square inch and as your altitude increases the pressure decreases. We will be discussing and demonstrating the effects of air pressure on such common items as hard boiled eggs, balloons, water, canned soda, 3 by 5 cards, panes of glass and ping pong balls, to name just a few.
National Standard Middle School Content Standard - B.2.1, B.2.2 & B.2.3

Activities and Objectives
Activities Objectives
Explanation of Air Pressure Acquaint students with air pressure, what it is at sea level, how it decreases as altitude increases and how it affects various objects.
The Bernoulli Effect: Who was Bernoulli, how high air pressure on one side of an object and low air pressure on the other side affect objects like ping pong balls and airplane wings To demonstrate the effects of air pressure when air is blown on paper and how air pressure affects a ping pong ball floating on air.
Lifting Power of Air To demonstrate the lifting power of air by forcing puffed rice cereal up a tube with a hair dryer.
How a drinking straw works To demonstrate the effects of a partial vacuum on a liquid surface and how air pressure forces liquid up through a drinking straw.
Effects of a partial vacuum and how air pressure acts against a vacuum To demonstrate the force of air pressure in relationship to a peeled hard boiled egg, a candle and water in a dish and an inflated balloon and an empty jar
Downward and upward forces of air pressure To demonstrate how a combination of air pressure and hydrogen bonding (surface tension) will suspend a pane of glass in the air, to demonstrate the same phenomena using a glass of water and a 3x5 index card. To demonstrate the effects of the weight of air pressure on a sheet of newspaper.

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Live Video Program Schedule Request Live Video Program Survey
Program Manager Contact Information
Name: Rebecca Ussery
One 7th Street
Augusta, GA 30901
Phone: (706) 821-0222 or (800) 325-5445 ext. 0222
FAX: (706) 821-0250
Email: usseryr@nscdiscovery.org