NASA

BE A GLACIER DETECTIVE

WOW! Become a glaciologist! Explore this unit!

Use the knowledge you have gained to answer the questions.

If you need help:
Ask the Wooly Mammoth!
Ask Joe Ice Worm!
Ask Sweet Sue Worm
They are your Study Partners!
The iceworms know the meaning of all the hard words!


Photo by Ahlnaes

1. What part of a glacier is this?
The calf.

The terminus.

The accumulation zone.

The firn line.

The neve.

The tributary.

The equilibrium line.

The moulin.

The Abominable Snowman.

A giant ice worm.

2. In this picture, you can see the smooth sides of the mountains and a valley filled with a blue lake at the bottom. What made this beautiful landscape?
An enormous spaceship with giant purple people eaters.

A glacier.

A tidal wave.


Photo by Hambrey

3. How did these boulders get here?
They were transported by a glacier.

They were thrown from all the wooly mammoths playing football (or you could say, "boulder ball").

A very windy day.

Mountain remains.

The Abominable Snowman was cleaning house.


Photo by Hambrey


Photo by Sharp

4. Which valley was carved by a glacier? (Ask yourself what happened? Did the same process happen in both of the pictures?)




5. What is this?
A meteorite crashed to the ground, cutting through the glacial ice.

A huge ice worm burrowed his way through the glacier.

A snow bridge.


Photo by Sharp

6. What are those brown bands on a glacier?
The glacier is very dirty and needs a bath.

Medial moraines.

Someone walked on the glacier without taking off his shoes.


Photo by Hambrey


7. What causes a glacier to surge?
Scientists are still trying to find an answer.

The Abominable Snowman pushed the glacier down the mountain.

The mountains are shivering.



Photo by Hambrey

8. What is this?
The ice worms harvested potatoes from their garden down glacier.

Firn crystals from South Cascade Glacier.

Ice worm eggs about to hatch.


Scanning Electron Micrograph by
W.P. Wergin & E.F. Erbe, ARS, U.S.D.A.

9. What is this glacial feature?
A kettle.

A meteorite crater filled with water.

A soup pot for the ice worms.


Photo by McMillian

10. What are the dangers in these pictures?


Photo by Hambrey


Photo by Alean

11. Glaciers are beautiful, but can be dangerous if you aren't careful. Choose three safe ways to explore glaciers.

Dive into a crevasse

Never travel alone

Jump on an iceberg

Watch and test before you step

Jump up & down on snow bridges

Use your tongue to test the temperature of the ice

Dress warmly and have the proper equipment

Go swimming in kettle ponds

Photo by Hambrey