Exact, agreed-upon quantity used for comparison.
5 answers
control? baseline? reference?
Non of those work because I'm working on this crossword puzzle, and the word is 8 letters long and ends with a D.
Meagan -- It would have helpful to you and to us if you'd given this information in your first post. We are intelligent, educated tutors, but we are not clairvoyant.
I am sorry, this is homework but this is all that is on each statement.
I am sorry, this was all I had on the puzzle and it is homework that I had in Physical Science.