In order to be sure that your results are accurate, you must be able to your experiment.

a. explain
b. analyze
c. record
d. repeat

it's filtration, but this is an assumption so my apologies if i got this

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 : )