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Balloon Rocket Car Lesson Science Bus Alex Tung, Praj Kulkarni special 2/24/04 A.Objectives: 1) Introduce concept of equal and foe actions (Newtons 3rd Law) 2) Discuss concept of friction and cogency loss 3) evince levelheaded construction techniques and design 4) investigate with modifying design parameters to achieve a certain goal B.

Materials require: - Intro: o Balloons o swallow Straw o Tape o String - Balloon Cars: o Wheels ? we bought nigh wheels from McMaster Carr provided p run shortic bottle caps and film shagister shot lids or some(prenominal) former(a) round objects can be used ? Small lamentable bands to fit around the wheels o Axles ? we used 1/8 rod from hardware store or McMaster, but this resolvent depend on what you want to use for wheels for the film can/bottle cap lids, we found punching a hole in the wheel and pressing a thin aluminum negatron tube (available at local hardware stores) into the opening was good lavish to keep the wheel in place o Eye-hole screws ? pick a good size for the axles you use o Body ? You want something relatively sapless foam loading or balsa wood (San Antonio spare-time activity carries both) work moderately salubrious. Alternatively weve seen things corresponding milk cartons and the like used ? oth! erwise materials for modifying bodies should be provided paper clips, paper cups, tape, etc. o propulsion ? Balloons, tubing/straws ? We found surgical tubing works bonny well for the size of car and balloon we are using. evidently you can experiment with other sized tubing, but this is more or less user-friendly to work with and provides slow enough release to last for a couple seconds, and yet it provides enough force to rattling start the car a decent distance o Miscellaneous...If you want to hold back a full essay, install it on our website: BestEssayCheap.com

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