* Glaciers are made of ice: They are large masses of compacted snow and ice.

* They form on land: Glaciers form in cold regions where snowfall exceeds melting, accumulating over time and forming a thick ice sheet.

* They shape the land: While glaciers are moving masses of ice, they are not a body of water. They are a force of erosion and deposition that sculpt the land.

While glaciers can form in mountainous regions where there are lakes or rivers, they are distinct entities. Think of them as giant, slow-moving rivers of ice that carve out valleys and shape mountains.