The Rocky Mountains
Where are the Rocky Mountains?
In Canada and the United States
What is a glacier?
A huge mass of ice that moves very slowly over land
What is a valley?
A long and deep area of land found between hills and mountains
How were the Rocky Mountains formed?
The movements of the Earth's plates
What is the longest glacier?
Lambert Glacier
How are valleys formed?
Most are formed by rivers that erode or wear down soil and rocks
When and which plates had a convergent boundary?
The North American plate his the Pacific plate
How do glaciers form?
They are formed when not all snow and ice melt year to year
What is erosion?
As a river flows towards a larger body of water, the speed of the water breaks away the soil and land from the water
Which plate ended up on top to form the mountain range?
The North American plate
Where are most glaciers?
Antarctica and Greenland
Are valleys only formed by rivers?
No, glaciers can also form valleys
Are the mountains right at the plate boundaries?
No, they are 1000km inland
What is glacier erosion?
When glaciers scrape and grind over the ground, changing the land around them
How do valleys get bigger?
Erosion can make valleys bigger