Its features, called landforms, are always being shaped by time. Ice, water, and wind change the surface of the planet. The elements chip away at our rocks and soil. To start, pick an activity below. Sand Sculpture Big Chill Imagine seeing cold, white mountains creeping toward you.
Glaciers keep on the move.
When the earth's climate gets warmer, glaciers melt and retreat. When the climate is colder, glaciers collect more snow and move forward. Their heavy weight makes them advance. First Discover Glaciers come in all shapes and sizes. In this activity, you will learn about the different types.