No one knew the answer and he did not tell us the answer.

A set of four glass ramps positioned in a square clearly show water travelling up each of them before it pours off the top, only to start again at the bottom of the next ramp.

In the water cycle, the sun heats the Earth's surface water, causing that surface water to evaporate (gas).

Have you ever wondered how water performs its gravity-defying act of moving upward from the roots to the leaves of a plant?

Water moves up the xylem through a process called capillary action