ch.8 social studies notes
Terms
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- names of the five great lakes
- lake ontario, lake erie, lake huron, lake michigon, and lake suoerior
- the great lakes are the largest group of _______ lakes in the world
- freshwater
- When were the Great Lakes formed?How were they formed?
- They were formed thousands of years ago during the ice age.Glaciers made pits in the ground and when the glaciers melted the pit would be filled with freshwater.
- what is a waterway
- a system of rivers, lakes, and canals through which ships travel.
- a ____ is a part of a ________ with gates that are used to raise or lower ships
- lock, system
- a ______________ help ships pass through at different levels
- lock system
- ________ or______ transport goods through the Great Lakes and eventully rivers that flow into the Atlantic Ocean
- barges or boats
- what is one disadvantage of shipping by water
- it is slow and food may staple
- the Great Lakes are linked to the Mississippi River through the ___________ and the Atlantic Ocean through the ___________________
- Illionois Waterway, St. Lawrence Seaway
- the balands are located in the midwest in the ____________
- Great Plains
- how did the climate of the badlands temputure change over time
- the climate became cooler and less humid
- what two elemets cause erosion
- wind and water
- how does erosion help dig up fossils in the Badlands
- rivers that flow through the reigion cut easily through rock and exposes fossils
- a ______ surronds the badlands
- prarie
- Corn Palence was built to show the importance of _________ to the midwest
- agriculture
- why do farms on the Great Plains and on the Central Plains grow different types of crops
- they grow different types of crops because of different amounts of rainfall
- farmers on the Great Plains get water through their crops using irrigation from ________________________________________
- rainfall, rivers, or deep underground
- because of irrigation, many types of _____ can be grown in the Midwaest
- crops
- rich soil and long growing season help make the midwest an important __________________
- argricultule reigion
- __________________ are two main crops on the central plains.__________________ are main crops that grow in the great plains
- corn and soybeans, wheat an other grains