EVERYDAY SCIENCE

Detailed explanation-1: -Kettles are bowl-shaped depressions formed when buried blocks of glacial ice melt. If the depressions ll with water, they are called kettle lakes.

Detailed explanation-2: -Debris in the glacial environment may be deposited directly by the ice (till) or, after reworking, by meltwater streams (outwash). The resulting deposits are termed glacial drift.

Detailed explanation-3: -When glaciers retreat, they leave behind huge blocks of ice. When these ice blocks melt, they can form kettle lakes. Why is it important for sediment to build up around the ice blocks in order for kettle lakes to form? Without the sediment built up, the water would not collect in one space.

Detailed explanation-4: -Lodgement till is deposited directly from the moving ice beneath the moving glacier, whereas ablation till is deposited at the glacier terminus as the ice melts and drops its load.

Detailed explanation-5: -Depressions, known as kettles, often pockmark these outwash plains and other areas with glacial deposits. Kettles form when a block of stagnant ice (a serac) detaches from the glacier. Eventually, it becomes wholly or partially buried in sediment and slowly melts, leaving behind a pit.