  Our work focuses on an experimental investigation of droplets freely rising
through a miscible, more viscous liquid. We report observations of water
droplets rising through glycerol and corn syrup, which are common household
ingredients. Immediately after the drops are formed, they take on prolate
shapes and rise with constant velocity without expanding in size. However,
after a critical time predicted by our theory, the drops continually grow into
oblate spheroids, and as they mix with the ambient liquid, their volume
increases and their velocity decreases, eventually following power laws. We
present scaling relations that explain the main observed phenomena. However,
the power laws governing the rate of the volumetric increase and the velocity
decrease, namely $t^{1/2}$ and $t^{-1/2}$, respectively, remain points of
further investigation.
