Asked in science class

REAL QUESTIONS ASKED IN SCIENCE CLASSES Are the rivers flowing up the mountain or down the mountain? Is that the ocean? (Asked while on a field trip to Marine Lab Beach on Guam (a small island in the Pacific). How can the river be flowing north? That's uphill! How can mass wasting be an agent of landscape formation on the Moon? The Moon has no gravity! How do I get water into this beaker?