anonymous
  • anonymous
Hi this isn't a hard question I just can't understand what it's asking me... Please help! "How many variables differed between the experiments? A) 1 B) 2 C) 3 D) 0" The lab we did was adding water drops and soapy water drops on a penny to measure the surface tension, we also another one with 4 different temperatures of water.
Biology
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
we also did* another one
Loser66
  • Loser66
To me, it is just 1 water vs soap.
anonymous
  • anonymous
but we did 2 different experiments... and for the other on we tested the surface tension with water that was 4,25,37, and 100 degrees..

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anonymous
  • anonymous
YAY!!! thank you so much the timer was running out and i just went with 1 and got a 100!!! :D
anonymous
  • anonymous

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