Glaciers

Where is the world's largest desert?

• Sahara

• Gobi

• Antartcia

• Arctic

The definition of a desert is: Deserts are dry or arid areas that receive less than______mm of rain each year. Deserts can be hot or cold.

A glacier is a large mass of ______that is slowly moving and is formed through cold temperatures and repeated snowfalls.

Which one is the first statement on how a glacier forms...

• During the summer months, some parts of the glacier begin to melt. This is called the Zone of Ablation

• The bottom layers become ice under all the weight and pressure.

• Where the snow does not melt from year to year, this is where a glacier begins to form. As the snow builds up, it compresses the bottom layers.

• Snow falls heavily near the top of the glacier during the colder winter months. This is called the Zone of Accumulation

Snow falls heavily near the top of the glacier, what is this called? Zone of ________

As snow builds up it ______ the bottom layers?

• Compresses

• Depresses

• Builds up

• Opresses

What is an ice age?

• An Ice Age is a period of time of high temperatures, with glaciers expanding from the poles of the planet that can last for millions of years.

• An Ice Age is a period of time of low temperatures, with ski resorts expanding from the poles of the planet that can last for millions of years.

• An Ice Age is a period of time of low temperatures, with glaciers and ice sheets expanding from the poles of the planet that can last for millions of years.

• An Ice Age is a period of time of low temperatures, with glaciers and ice sheets expanding from the poles of the planet that can last for a few years.

Which letter represents the shape of valleys created by glaciers?

• V

• W

• L

• U

Freeze thaw is:

• This process is when water gets into cracks in the rock. As the water in the cracks freezes, it expands and breaks the rock up.

• This process is when ice gets into cracks in the rock. As the ice in the cracks freezes, it shrinks and breaks the rock up.

• This process is when water gets into cracks in the rock. As the water in the cracks melts, it expands and breaks the rock up.

• This process is when water gets into cracks in the rock. As the water in the cracks freezes, it expands and brings the rock together.

What is this image representing?

• Abrasion

• Plucking

• Freeze Thaw

• Deposition