1. To Next Slide Unit 4 Chapter 8 Lesson 2 Amber Waves of Grain 20 Questions!

2. To Next Slide A layer of soil held together by the roots of grasses. sod

3. To Next Slide Why did settlers on the Great Plains have to learn new ways of building? There were few trees they could not build with wood. They built their homes out of sod.

4. To Next Slide Self-sufficient Doing almost everything for yourself, with no help from other people.

5. To Next Slide Why did pioneer families need to be self-sufficient? They often lived far away from towns, stores, and neighbors.

6. To Next Slide How did new farm machines and improved plows change farming? They allowed farmers to till and plant more land.

7. To Next Slide Matter added to the soil to help crops grow. Fertilizer

8. To Next Slide The spread of city life. Urbanization

9. To Next Slide How has the number of people who earn their living on farms changed? Fewer people now earn their living as farmers.

10. To Next Slide The order in which one thing comes after another. Sequence

11. To Next Slide Thats All! Keep Sharp Minds!