Glacier Power started as a 1997 middle-school curriculum supplement produced by the Alaska Satellite Facility (ASF) in collaboration with glaciologists, local scientists, teachers, students, and artists. Although parts of the supplement have become outdated, several components of Glacier Power are still user favorites and rank among ASF’s most-visited pages.
ASF has updated Glacier Power content in the form of Q&A pages and lesson plans for teachers. Many of the Q&A pages contain vocabulary lists, review questions, or exercises.
Credits With special thanks to…Dr. Frank Carsey, 1995-1997 Chief Scientist of the Alaska SAR Facility, for direction and encouragement, andFairbanks North Star Borough School District, officials and teachers for cooperation, direction,
Glacier Voices Glaciers are giants that seem to come to life with strange voices, mysterious powers and unusual life forms. These voices can be of a substantial volume. The sounds
Glaciers Have Their Own Warning Signs Glaciers can be dangerous in many ways. However, as long as you keep safety in mind, visiting a glacier can be a wonderful experience.
From Snowflakes to Rivers of Ice Glaciers are massive and incredibly powerful, but they begin with small snowflakes. Imagine how many snowflakes make a glacier as snow gradually changes into
Glaciers Are Solid Rivers A glacier is a large accumulation of many years of snow, transformed into ice. This solid crystalline material deforms (changes) and moves. Glaciers, also known as
Exercises – Teacher’s Guide Where Have Glaciers Been? Answers: Connect the Related Words U-Shaped ValleyglaciersiltfjordsV-Shaped ValleyriverGrand Canyon Glacier Anatomy Answers: Matching accumulation zone – Bablation zone – Dtributary – Amoraine
Segment Review Questions Teacher’s Guide What is a Glacier? How does the glacier move down it’s slope? Gravity Are all glaciers the same? No Where are the world’s largest ice
Glacier Power Glossary Ablation, Ablation zone Processes (especially melting) by which a glacier loses ice and snow: melting, evaporation, calving, and erosion. The area of a glacier where ablation occurs.
Crevasses A crevasse is a crack in the surface of a glacier. Photo by Kristina Ahlnas. A scientist climbing into a crevasse. Photo by Kristina Ahlnas. A ladder inside a
A Glacier Begins with Small Snowflakes Glaciers are massive and incredibly powerful but they begin with small snowflakes. Each lacy, delicate crystal flake is unlike any other; imagine how many
Calving Cows have calves, glaciers calve icebergs, which are chunks of ice that break off glaciers and fall into water. Calving is when chunks of ice break off at the
Anatomy of a Glacier The anatomy of a glacier as it slowly slides down the valley. Illustration by Donna Redhead. Anatomy of a Glacier Definitions Key terms are highlighted The accumulation (input) zone is
Find your clues! There are clues which tell us if a glacier has been over certain landscapes. Think about it! Imagine a landscape of mountains, trees, and wildflowers. Up in
Glacial ice is a different color from regular ice. It is so blue because the dense ice of the glacier absorbs every other color of the spectrum except blue —
Think of a glacier as a huge ice box with the answers about how our world was a long time ago locked inside. All we have to do is open