Wind + Glacial Erosion Review

Wind is caused by ____________

• magic

• changes in pressure due to uneven heating of Earth's surface.

• air moving from areas of low pressure to higher pressure.

• swirling air particles that are electrostatically attracted to each other.

A glacier is ___________

• a solid block of ice that does not move.

• Small mass of ice floating in the ocean.

• super warm and can be found near the equator

• a large mass of moving ice.

The process of breaking down material by scraping or rubbing materials against each other is known as __________.

• Abrasion

• Ice Wedging

• Oxidation

• Solution

The location on a glacier that has a positive ice budget is known as ___________.

• Equilibrium Line

• Moraine

• Zone of Accumulation

• Zone of Ablation

Glacial till is ____________

• Sorted and Layered sediments deposited by glacial outwash

• Unsorted and unlayered sediments deposited by glacial ice.

• Oval shaped deposit that provides information on the direction of motion for a glacier.

• Small lake left behind by a frozen block of buried ice melting

Glacial striations are _____________

• fine windblown sediments rich in minerals.

• when a surface becomes shiny/smooth due to abrasion.

• marks or gouges left behind by abrasion.

• glacial deposits of sediments carried in ice.

The leeward side of a sand dune is sometimes called __________.

• windward side

• slip face

• terminus

• zone of ablation

__________ leave behind U-shaped valleys.

• Alpine Glaciers

• Continental Glaciers

• Sand Dunes

• Loess

Accumulation occurs when a glacier ...

• is losing more glacial ice than gaining.

• deposits recessional moraines repeatedly.

• gouges out scratches in the bedrock or valley walls.

• is gaining more glacial ice than losing.

___________ is/are good for agriculture due to its high mineral and nutrient content.

• Ablation

• Moraines

• Loess

• Sand Dunes