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History of Sails and Sailing. Catching the Wind with Sails. History. Ancient Egyptians developed the first sails around 4,000 B.C. using papyrus reeds. http://www.gutenberg.org/files/17322/17322-h/images/080.jpg. History.
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History of Sails and Sailing Catching the Wind with Sails
History Ancient Egyptians developed the first sails around 4,000 B.C. using papyrus reeds. http://www.gutenberg.org/files/17322/17322-h/images/080.jpg
History Ancient Greek and Roman ships used cotton cloth and leather straps to make sails. http://www.laits.utexas.edu/moore/sites/laits.utexas.edu.moore/files/images/9907140508_1024.preview.jpg
History Sailing became used for trade and transportation throughout Europe, Asia, and northern Africa. http://bestgfx.com/uploads/posts/2011-07/1310378359_32hi4wkxenv9mgw.jpeg
Mast A mast is the tall, vertical pole that supports the sail. http://upload.wikimedia.org/wikipedia/commons/7/79/Balclutha_main_topgallant_mast.jpg
Speed Speed is an objects change in position over time. How speedy you are is how much change you have in a set amount of time. http://www.lookpictures.net/photos/registered_photos/7799-speedometer.jpg
Length In this experiment, length will be the distance traveled in centimeters or inches. http://simplyzesty.com/wp-content/uploads//2011/07/measuring_success.jpg
Balance The ability to be stable; equally distributed forces. In sail design, does the boat rock side to side, or stay calm and balanced? http://breakingmuscle.com/sites/default/files/images/03/12/2011_-_1919/1balance.jpg
Sail Any type of surface used to move a vessel http://www.jwoolfden.com/jpg/USCGC_Eagle_under_sail.jpg
Material Anything made of matter. For this experiment, materials will be anything available to build your sail. http://cdn1.novadevelopment.com/images/completeMaterials01_tcm23-144221.jpg http://www.archkidecture.org/buildingsquares/bldgsquares_images/4materials.jpg
Predict Tell what you think will happen http://www.thenoisecast.com/wp-content/uploads/2011/03/fortune-teller.jpg
Property Characteristics – For this experiment, properties will be any characteristic of the materials used (hard, soft, opaque, etc.) absorbent soft plush http://www.globaltextiles.com/html/images/upload/tradeleads/555/554823.jpg
Test Something used to determine ability or success