Osmosis and Dehydration
Osmosis and dehydration is how water moves through a thin barrier, pulling moisture out of things like an orange soaked in alcohol.
Think of it this way
Salt sprinkled on cucumber slices pulls water out of the vegetable and onto the plate. The salt outside the cucumber has less water than the cells inside, so water moves through the thin cell walls to balance things out. This same movement happens whenever water crosses a barrier to reach a drier side.
Explaining osmosis and dehydration by grade level
Think about an orange slice sitting in a cup of rubbing alcohol. After a while, the orange gets dry and shriveled. The alcohol pulls water out of the orange through its skin. Water always tries to move toward the drier side. That is why the orange loses its juice and shrinks.