Everyone is mesmerized by car crashes. In a split second steel bends like plastic and a car that was worth thousands of dollars becomes scrap metal. This activity helps the students understand why all of this happens. I use a 20 minute video from youtube to introduce the topic; while the students are watching the video, they are filling out a video worksheet. After the videos are finished, we discuss what they learned. Finally, I have the students read a 6 page article and fill out another worksheet. I recommend using Google forms for the worksheets, but if you prefer to do it with paper I have a document of the questions attached as well.
This activity is perfect for a day when you want the students to do independent work or need a quick sub plan.