You are given three cups of liquids that look identical. Use the sequence words - first, next, after, and finally - to explain how you might tell whether the liquids are the same or different?

Answer 1

It seems to me that choosing the tests you do are more important than what "sequence" words you use or what order you do the testing.

Tests you might perform include:
(1) weight measurement
(2) smell
(3) pH
(4) boiling point measurement
(5) solubility of some salt
(6) asorption spectrum (requires special equipment)

If they differ in any of these tests, they are different liquids.