Maddie's Do You Know?TV Show
(2016) • Season 1, Episode 4
HD
★ 0.0
IMDb: 0.0
Seasons: 5
en
Maddie is outside being active. She uses a special camera to find out how the chain on a bicycle works to turn the wheels and how the front wheel and handlebars are used to steer. Next, Maddie visits a factory to see how rubber, collected from trees, is made into tennis balls using a series of heavy presses. A microscopic camera reveals the special material used to cover the tennis balls with a furry coat.
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