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From: Levy, Kristen <Kristen.Levy@pwssd.k12.wi.us>
Date: Wed Apr 05 2006 - 15:21:57 EDT
I just finished watching video #7, and they had an activity that was similar to the Barbie doll activity. They use eggs to show inertia and the importance of seatbelts. I thought drawing a happy face on the egg that had the seatbelt and a sad face on the cracked egg that had no seatbelt was cute. It's a nice activity, because it's inexpensive enough that the whole class can participate, so you don't need to do it as a demonstration.
Kristen
-----Original Message-----
I'd use that activity as an introduction to a lab. For kids, http://auto.howstuffworks.com/airbag.htm is an excellent resource.
To show the usefulness of seatbelts, I use a Barbie doll car and a rag doll named Inertia. I have one of the students push the car, and another student stop the car as quickly as possible. When Inertia's legs are on top of the car, she continues forward and hits the child. When her legs are tucked under the car, she stops with the car. I do this activity as a demonstration, rather than a lab, because I only have one Barbie doll car.
To show the usefulness of airbags, you could do an activity like the egg drop. It's explained here:
For an egg drop, you create a cushion around the egg, so that when it's dropped from a balcony or ladder, the egg will not crack.
Kristen Levy
-----Original Message-----
Dear all,
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