Describe the saponification process

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )