Weathering breaks down and changes rocks through processes like water freezing in cracks, plant roots pushing against rocks, or chemical reactions. Erosion then transports these weathered rocks and soils away from their original locations using forces from wind, water, and ice which can shape the land through formations like dunes or valleys carved out by glaciers or flowing water over time. Weathering breaks down rocks which are then eroded away, continually changing Earth's surface features.