Glaciers Lesson

​Helpful Terminology

Open Ended

Name a feature you might you expect to find in a landscape shaped by glaciers?

Open Ended

Explain how the formation of glaciers is influenced by the balance between snowfall and melting.

Multiple Choice

Which process is responsible for transforming snow into glacier ice?

• Melting

• Compaction

• Evaporation

• Sublimation

Multiple Choice

Which of the following statements correctly describes an alpine glacier?

• It forms in lowland areas and spreads in all directions.

• It forms in high mountain valleys and moves down the valley.

• It covers large islands and continents.

• It remains stationary in mountain valleys.

Multiple Select

Select all statements that are true about continental glaciers.

• They cover much of a continent or large island.

• They are smaller than alpine glaciers.

• They flow in all directions.

• They are also called ice sheets.

Multiple Choice

The maximum ice depth on Antarctica is ___ feet.

• 15660
• 2643

• 6767

• 43000

Multiple Choice

Which state would the US lose if all of the glaciers of the world melted?

• Masachusetts

• Texas
• Florida
• California

Multiple Choice

About how thick was the ice that covered New England during the last ice age?

• 1 to 2 inches thick
• 5 to 10 miles thick
• 3 to 4 feet thick
• 1 to 2 miles thick

Multiple Choice

How fast do glaciers move?

• Glaciers move at speeds of up to 100 kilometers per hour.
• Glaciers do not move at all and remain stationary.
• Glaciers move at rates of a few centimeters to several meters per day.

Multiple Choice

What is a glacial erratic?

• A type of glacier that moves quickly.

• A large boulder moved by a glacier and left behind.

• A valley formed by glacial erosion.

• A crack in the glacier caused by melting.

Multiple Choice

What is glacial plucking?

• Glacial plucking is the process by which glaciers erode rocks by freezing onto them and pulling them away.
• Glacial plucking refers to the melting of glaciers in warmer climates.
• Glacial plucking is the process of glaciers forming new icebergs.
• Glacial plucking is the method by which glaciers create lakes and rivers.

Multiple Choice

How do glaciers for U-Shaped valleys?

• Glaciers form U-shaped valleys by eroding the landscape through movement and scraping of rock.
• Glaciers form U-shaped valleys by melting and leaving behind flat plains.
• U-shaped valleys are formed by volcanic activity rather than glacial movement.
• Glaciers create U-shaped valleys by depositing sediment in a circular pattern.

Multiple Choice

What are glacial striations?

• Glacial striations are large ice formations found in glaciers.
• Glacial striations are types of rocks formed by volcanic activity.
• Glacial striations are patterns of snowflakes that fall during winter.
• Glacial striations are scratches or grooves on bedrock caused by the movement of glaciers.

Multiple Choice

A bowl-shaped hollow eroded by a glacier is called a ___.

• cirque
• valley
• fjord
• delta

Eskers

An esker is a long, winding ridge of sand and gravel that was left behind by a stream flowing inside or under a glacier.

Groton is full of them!

Multiple Choice

Contrast the appearance of outwash plains and moraines

• Outwash plains are densely forested, while moraines are barren and dry.
• Outwash plains are flat and layered, while moraines are rugged and mound-like.
• Outwash plains are steep and rocky, while moraines are flat and smooth.

Map of Groton showing where the glacial features.
Gibbett hill is a drumlin!

Drag and Drop

Many of the hills in Groton, including Gibbett, are actually ​

Placeholder

​

Drag these tiles and drop them in the correct blank above

drumlins

erratics

kettles

cirques

Multiple Select

Which of the following are erosional features formed by glaciers?

• Morraine

• Outwash plain

• Cirque

• Horn

Multiple Choice

Identify the glacial landform the man is standing on.

• Ice field

• Ablation zone

• Moraine

Multiple Choice

Poorly graded (unsorted) rock material deposited directly by a glacier.

• glacial drift

• stratified drift

• Glacial till

• glacier

Multiple Choice

Massive boulders that are transported sediment are called...

• Erratics

• Drumlins

• Kettles

• Outwash

Multiple Choice

Massive amounts of sediment pushed along the end of the glacier is called...

• Moraine

• Outwash plain

• Kettle lakes

• erratic

Multiple Choice

What is the name for this large glacial boulder that does not match the surrounding sediments?

• A drumlin

• An erratic

• A moraine

• A kettle lake

Multiple Choice

A _____ is a tear-drop-shaped hill created by ice flow over and around till deposit.

• drumlin
• esker
• moraine
• erratic

Multiple Choice

A _____ are depressions formed as stranded ice blocks melt in till.

• erratics

• eskers

• kettles

• drumlin

Multiple Select

What is this image representing?

• Abrasion

• Plucking

• Freeze Thaw

• Deposition

Multiple Choice

What are these features? These are created when glaciers travel over rock and scratch them with the sediment that has been picked up.

• Drumlins

• Kettles

• Striations

• U Shape Valley

Multiple Choice

The long winding hill here is a...

• striation

• kame

• drumlin

• esker

Multiple Choice

The large area in front of this glacier is called ...

• the tidal zone.

• ground moraine.

• the outwash plain.

• a drumlin field.

Multiple Choice

Seen here is a feature of mountain glaciers. When two glaciers weather away two sides of a mountain it creates a ...

• Horn

• Arete

• Cirque

• Outwash Plain

Labeling

Label these depositional features of glaciers

Drag labels to their correct position on the image

Moraine

Kettle Lakes

Outwash Plain

Esker

Drumlin