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Unit 9 When was it invented? Section B A: Who was the _______ invented by? B: It was invented by ______. Carl Benz Revision car A: When was the _______ invented? B: I think it was invented in ______. 1976 1971 1927 A: What is the _______ used for? B: It is used for _______________. talking with people telephone Who invented potato chips? How do the food taste? sour sweet sweet sweet crispy salty Listen to the history of potato chips and circle “T” (for true) or “F” (for false). chips were invented by mistake. were invented in 1863. customer thought the potatoes weren’t thin enough. customer said they weren’t salty enough. w