Social Studies Ch8 Notes Flashcards
(23 cards)
What is the largest group of freshwater lakes in the world?
The Great Lakes
What are the names of the 5 Great Lakes?
Lake Ontario Lake Eire Lake Huron Lake Michigan Lake Superior
When were the Great Lakes formed?
Th Great Lakes were formed during the last ice age.
How were the Great Lakes formed?
Movement of glaciers caused deep pits to form in the earth. As the ice age ended, the glaciers melted. The melting waters filled with the peaks forming the Great Lakes.
What is a waterway?
A system of rivers, lakes, and canals through which many ships travel.
Part of a waterway with gates that are used to raise and lower ships.
Lock
What helps ships pass through rivers or canals that are at different levels
A lock system
What transports goods through the Great Lakes and on rivers that eventually flow into the Atlantic Ocean?
Barges or boats
What is one disadvantage of shipping by water?
It’s slow, food may spoil.
The Great Lakes are linked to the Mississippi River through the_________
Illinois waterway
The Great Lakes are linked to the Atlantic Ocean through the_________
St Lawrence seaway
Where are the badlands located?
In the Midwest in the Great Plains
How did the climate of the badlands change over time?
It became cooler and less humid
What two elements cause erosion?
Wind and water
How does erosion help uncover fossils in the badlands?
Water and wind wear away the rock exposing the fossils buried in it.
What surrounds the badlands?
A prairie
Corn palace was built to show _______
The importance of agriculture in the Midwest
Why do farms on the great planes and on the central plains grow different types of crops?
Because they received different types of rain influencing what types of crops grow best
Farmers on the great planes get water for their crops using______
Irrigation with water from rainfall rivers or from deep underground
Because of irrigation, many types of ________ can be grown in the Midwest.
Crops
Rich soil and a long growing season help make the Midwest an important_________
Agricultural region
Two main crops grown in the central plains are ________
Corn and soybeans
The main crops grown in the Great Plains _______
Weats
