sentence: Crash tests cost a lot of money.
sentences_before: Cars and other vehicles are tested using a 'crash test'. The car is put under severe conditions to see what will make it fail. Other machines can also be crash tested. Crash test dummies stand in for humans. They 'sit' in the car seat to see if a human in the crash would have been injured or killed.
concept_name: crash test
headings: Test Vehicles
categories: Basic English 850 words