Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
What is the name given to the last ice age ? |
Wisconsin Ice Age |
|
|
What is the name of the ice sheet that covered the great Lakes region during the last ice age ? |
Laurentide ice sheet |
|
|
About how many years did ice cover the northern half of North america ? |
2.6 million years ago to about 11,000 years ago |
|
|
How thick was the ice sheet ? |
2 miles |
|
|
Once the climate Begin to warm up how long did it take the ice sheet to melt ? |
10,000 years |
|
|
What causes a glacier to move ? |
By the weight of the thicker ice up north is pushing onto the thiner ice from Southern |
|
|
Why does the bottom of a glacier move sleet than the top of the glacier ? |
Friction of the earth ground causes to move slower |
|
|
Explain how the glacier carves out the soft materials of earth . |
The weight of thick ice digs out the soft soil . |
|
|
what does the glacier do with the material it carves off the earth's surface ? |
Pushes the material along with the Glacier . |
|
|
what is the name given to the soft material carved of the earth's surface by a glacier ? |
dill |
|
|
what is created bt the soft material when the glacier melts and retreats ? |
high ridges |
|
|
describe a glacial valley AND how they are created . |
Trough shaped , step near- veticial cliff , where entire mountains sides were scored created when a glacierical melts and retreats . |
|
|
What is a glacial fjord? |
Glaciers valley that forms near the ocean so the valley fills up with water . |
|
|
What is a glacial lake ? |
Lake with orgins in a melted glacier |
