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efunda.globalspec.com/LearnMore/Manufacturing_Process_E...
efunda.globalspec.com/LearnMore/Manufacturing_Process_Equipment/Stock_Fabricated_Materials_Components/Plastic_Rubber_Balls
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well if your talking about bouncy balls then they are made out of either latex rubber or another kind but latex is the most popular. the type and grade of the rubber along with the density{the compactness of the atoms} can greatly effect the balls bounce.
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www.answerbag.com/q_view/164097
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Ball - Wikipedia, the free encyclopedia
A ball is a round object with various uses. It is usually spherical but can be ovoid. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or throw...
en.wikipedia.org/wiki/Ball
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Materials Needed: 1. A box containing several small super balls, medium-sized super balls, hollow rubber balls, solid rubber balls, tennis balls, golf balls, baseballs, and whatever other types of balls are available.
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www.iit.edu/~smile/ph9417.html
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What Rubber is Made From Rubber is just a combination of polymers of isoprene units and other natural substances and impurities. It is a build up of the isoprene unit molecules and is not normally made up of other synthetic materials (altho...
http://wiki.answers.com/Q/What_is_rubber_made_from
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Science question: Why are tennis balls made of rubber? Rubber can bounce for a longer time and it can be played be a tennis racquet (you can not hit a cricket ball with tennis racquet) and one more reason ... What are rubber balls? Facts about tennis balls? Haw are tennis balls made? Why are tennis balls rubber?
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wiki.answers.com/Q/Why_are_tennis_balls_made_of_rubber
wiki.answers.com/Q/Why_are_tennis_balls_made_of_rubber
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Some balls bounce better than others. ... Scientists have found that, for most balls, this speed ratio ... Bouncing Balls...
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www.phy.ntnu.edu.tw/java/bouncingBall/bouncingBall.html
www.phy.ntnu.edu.tw/java/bouncingBall/bouncingBall.html
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Top quality medicine balls for athletic training, exercise classes, fitness and physical therapy ... Balls and accessories ... Giant cage balls...
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www.medball.com/
www.medball.com/
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Rubber Flubber Experiment Kit ... Make rubber balls, foam rubber, erasers, rubber stamps, rubber bands, water proof cloth and rubber dinosaurs. Detect ammonia. Learn about an amazing and useful natural substance, states of matter, entropy and chemical reactions...
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www.universeofscience.com/flub.html
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