Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991

Exercises
Teacher's Guide

What's a Glacier?

Answers: Amazing Maze

Yes, an ice sheet is bigger than an ice cap.

No, a cirque is a bowl or basin carved out of a mountain by a glacier.

Yes, ice in warm glaciers is always near the melting point.

No, ice in cold glaciers does not erode a lot.

Where Have Glaciers Been?

Answers: Connect the Related Words

U-Shaped Valley
glacier
silt
fjords
V-Shaped Valley
river
Grand Canyon

Glacier Anatomy

Answers: Matching

accumulation zone - B
ablation zone - D
tributary - A
moraine - C
terminus - E

Strange Glacial Phenomena

Answers: Crossword Puzzle

DownAcross
1. Jokulhlaups   1. moulins
2. fossils2. ice sizzle  
3. ice worms

What are Crevasses?

Answers: Word Scramble - Types of Crevasses

  1. bergschrund
  2. radial
  3. transverse
  4. longitudinal

Glacier Danger & Safety

Answers : Dress Your Friend for His/Her Hiking Adventure

The right items are:

crampons
jacket
rope
gloves
experienced traveler
boots

How Do Glaciers Form?

Answers: Circle the Facts

1. Firn: A, C, D
2. Snowflake(s): A, C, D
3. Snow on a glacier: B, C

How Do Glaciers Move?

Answers: Connect the Words with Definitions

Ablation zone
losing snow
output zone
Accumulation zone
adding snow
input zone
Equilibrium line
balanced glacier scale
Terminus
lowest end of a glacier
snout of a glacier
Calving
ice breaking off
icebergs
Moraine
medial
toe hold
rock

Calving

Answers: Circle the Calving Glacier

A, C, D

Why is Glacier Ice Blue?

Answers: Blue Ice

1. A, C

2.

  • It is compacted
  • Its structure is different
  • It's not frozen water or snow
  • It contains dirt, gravel, and even organic matter
  • Its air bubbles are pressurized

Why Do Scientists Study Glaciers?

Answers: Why Study?

1. A, B, D, F

2. If human influence causes the greenhouse effect, that may delay the natural planetary cycle of ice ages and cause a period of global warming

3.

A. True
B. False
C. True
D. False
E. False

4. Because Synthetic Aperture Radar (SAR) can "see" through clouds and darkness which usually obscure the Alaskan coastal mountains.

Get SAR Data

Get SAR Data

Select and download SAR data online using Vertex.

Use the ASF API for downloading SAR data via a command line.