McGraw-Hill SocialStudies 2003 Return to Unit List
Grade 4
Lesson Review Lesson Review
Unit 4: The Middle West
Chapter 7: Environment of the Middle West
Lesson 2: An Inland Climate
 
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Far from the Ocean

In the Middle West, there are no ocean breezes to cool the land during the summer and warm it in the winter. can reach extreme highs and lows for much of the summer and winter seasons. In the northeastern part of the region, the Great Lakes affect the land much like the ocean in other parts of the country. This is called the . It gives the area a gentler climate than other parts of the region.

Warm Weather

The growing season of the Middle West is short. Although the climate is perfect for growing corn and wheat, farmers must also worry about . Most use to make sure their crops get enough water when there is not much rain. From June to September, people in this region stay on alert for thunderstorms and . A tornado is a dangerous storm that forms into a fast- moving funnel of wind. Tornadoes, or twisters, can move at speeds up to 200 miles per hour. The force of these winds can everything in its path.

Winter Wonderland

Many winter storms begin in the colder parts of Canada. Sometimes form. Blizzards are winter storms with temperatures below 20 degrees, strong winds, and a lot of snow. Cities near the , such as Chicago, Illinois and Green Bay, Wisconsin, receive heavy snowfall every winter. This lake-effect snow occurs when cold, dry air from meets warmer, damp air over the Great Lakes. Some areas can receive more than 200 inches of lake-effect snow each year. Ice skating, , and snowshoeing are popular winter sports.

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