Answer:
Independent variable: the results with soapy water, since is not "original", it is what wants to be tested, in comparison to the clear water.
Dependent variable: the results with plain water, since it is our guide in the experiment.
Explanation:
Constant or control variable: the differences between the two. I knew that the oil should have less surface tension than the water, but we had equal results – 23 drops for each. Soapy water had the least surface tension. We were only able to get 11 drops of soapy water on the penny.
hope this helps :) comment if you have any other questions on this!!
#9 I cant see what steps 1-7 are so hopefully you were meaning number 10 and ill do that below this
# 10 you just do the drops on a penny until it spills over and do it 5 times then add up all the drops for each of the 5 times together and divide it by 5 because you did the trials 5 times and you get your answer
ex.
This is just an example you might have more or less drops
Trial 1: 10
Trial 2: 11
Trial 3: 10
Trial 4: 9
Trial 5: 11
so add them all up 10+11+10+9+11= 51
you get 51 so divide that by 5 and you get 10.2
