Warm Up!!!

•The Warm Up is located at the printer.

Friday’s Engineering Challenge:• THE COTTON BALL CATAPULT

• When you are done, please write the following steps of the scientific method on Page ___: Question: How far can a Cotton Ball be launched using basic

household materials? Background Information: N/A Hypothesis: I predict my catapult will launch my Cotton Ball

____ meters in ____ seconds. Procedure: Using the materials given, the following catapult

was designed: (SKETCH and LABEL your design)

After launching…

• Analyze Results: My catapult launched my Cotton Ball ____ meters. – Data Chart for all Teams: (Draw from Board)

• Conclusion: My hypothesis was ___________. I could make my catapult better by _________ _____________________________________.

Some Videos

• http://www.youtube.com/watch?v=oaZRhoxtHKY

• http://www.youtube.com/watch?v=XtZ_3ZvFkhg

For the remaining time…

Calculate the Speed of each group’s Cotton Ball trial to see which group’s Cotton Ball traveled the fastest.