Nature's Ice Cubes

Nature's Ice Cubes

Antartica

Multiple Choice

What are icebergs?

• Big pieces of freshwater ice floating in the ocean.

• Big pieces of salty ice water floating in the ocean.

• Mountains made of ice.

Multiple Select

Which wear icebergs away until there's nothing left? (choose 3)

• wind

• weather

• sunlight

• birds

• sharks

​calving

Multiple Choice

What is calving?

• The process in which giant chunks of ice break off and drop into the sea.

• When an icebergs finishes melting

• When the water starts freezing.

​freshwater - saltwater

​

Multiple Choice

Why don't icebergs sink?

• Because freshwater is less dense than salt water.

• Because they are very cold.

• Because they are usually small.

Multiple Select

What carves caves and tunnels in icebergs? (choose 3)

• wind

• waves

• weather

• birds

• storms