Which demonstration illustrates best how a glacier moves? View Available Hint(s) for Part A Push an ice cube off of a table, and watch it melt and pool on the floor. Slide a flat rock down an inclined dinner plate, and watch it change speed at the raised edge. Drop an ice cube on a grassy lawn, and watch it melt. Roll a pool ball into another, and watch the second move. Smash a ball of clay against a gravel driveway surface, and watch the clay spread