Read the story and answer the questions to test your comprehension.
The inflatable bouncy house or bounce house at your local street fair or birthday party was invented in 1959 by a man who wanted to invent a tennis court cover. The first version was an open-air mattress. In 1967, he added walls. To be flexible but also tough and safe, most bounce houses today are made out of PVC, vinyl or nylon material and puffed up with the help of an engine and a fan.