premise: Two scientists pouring fluid from one beaker to another. hypothesis: A pair of scientists are mixing liquids.
entailment: Two is the same as a pair.  Beakers could be used to mix liquids, particularly with a pouring motion.  Fluid is the same as a liquid, at least on a basic level.  Pouring does not always imply mixing however, so (1) does not logically imply (2) strictly speaking, since the fluids could be homogenous, in which case nothing would be mixed at all.