I WONDER - What Is An Iceberg?

Icebergs are large ice pieces that break off from glaciers and ice shelves. They form when glaciers move towards the ocean or when ice breaks away from ice shelves. Once separated, they float freely in the ocean. Icebergs vary in size from small growlers to massive ice islands, some larger than cities.

What is the process called when large pieces of ice break off from glaciers?

• Freezing

• Calving

• Melting

• Drifting

How do icebergs behave once they are separated from their parent ice formation?

• They evaporate

• They float freely in the ocean

• They remain attached to the glacier

• They sink to the ocean floor

Which of the following best describes the variety in iceberg shapes and sizes?

• Varied, from small to large

• Always larger than cities

• Only as big as a car

• Uniform and identical

What is a small iceberg, roughly the size of a car, called?

• Bergy bit

• Glacier

• Growler

• Ice island

How do massive ice islands compare in size?

• Same size as a boat

• Larger than some cities

• Smaller than a car

• Smaller than a house