Water Smart: Water on Earth - Glaciers

The video explains how water changes phase to become ice and, over time, forms glaciers. Glaciers, which are large masses of ice from accumulated snowfall, help scientists study past climates. They are mostly found in cold regions and move slowly, carving landscapes. When glaciers reach bodies of water, they form icebergs. Despite their size, glaciers contain only a small fraction of Earth's freshwater.

What is a glacier primarily composed of?

• Years of snowfall

• Melted ice

• Saltwater

• Sand and rocks

Where are glaciers most commonly found?

• In tropical regions

• Near the North and South poles

• Near the equator

• In deserts

How do glaciers affect the landscape as they move?

• They carve out mountain sides

• They create valleys

• They build up sand dunes

• They flatten mountains

What happens when glaciers reach a lake or ocean?

• They evaporate

• They form icebergs

• They turn into saltwater

• They stop moving

If all the water on Earth were divided into 100 buckets, how many would contain water from melted glaciers?

• 20 buckets

• 2 buckets

• 50 buckets

• 10 buckets