Michael Hales, Toby Gay, Elyssa Trejo CBEE 101 Reaction Powered Car Michael Hales, Toby Gay, Elyssa Trejo

Reaction Chemistry Things We Tried: -Baking Soda and Vinegar -Battery Cells: Copper Sulfide and Zinc Sulfide (using salt bridge and metal strips with alligator clips; could only generate 2 volts and very little amps) -Hydrochloric Acid and Potassium Bicarbonate What We Used: Vinegar and Potassium Bicarbonate CH3COOH + KHCO3

Key Design Points: Simple, Lightweight, Balanced Car Design Key Design Points: Simple, Lightweight, Balanced Secured bottle with duct tape on last trial run to prevent from going crooked.

Testing Results Trial KHCO3 Vinegar Distance Traveled 1 11.671 g 130 mL 1 in. 2 14.983 g 150 mL 7 ft. 3 18.534 g 160 mL 12 ft. 4 18.578 g 5 ft. 5 20.310 g 6 26.691 g Out of bounds 7 25.688 g 8 24.69 g 20 ft.

Conclusions Performance: -Made the car move -Inconsistant!!! -Lots of spew -Didn’t get to 25 ft. Re-Design Ideas: -Secure Bottle, -Tip Bottle Up (to prevent spew) Comments: - wasted too much time on battery cells, had to start over and were limited on time - Could have had much better results if given an extra day