We measured the volume at five different temperatures. a. The sentence does not need uncertainty. b.The sentence should be rewritten as: We may have measured the volume at five different temperatures.c. The sentence should be rewritten as: The volume readings suggested we should measure them at five different temperatures.

Answer

Q: What is the first sentence? A: We measured the volume at five different temperatures.
Q: Does the first sentence need uncertainty? A: No, it does not.
Q: What is the second sentence? A: We may have measured the volume at five different temperatures.
Q: Is the second sentence a better way to phrase the original sentence? A: No, it is not.
Q: What is the third sentence? A: The volume readings suggested we should measure them at five different temperatures.
Q: Is the third sentence a better way to phrase the original sentence? A: No, it is not.