4th grade-ch. 9 lesson 3 how can earths surface change rapidly
TRANSCRIPT
![Page 1: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/1.jpg)
Ch. 9Lesson 3
How can Earth’s surface change
rapidly?
![Page 2: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/2.jpg)
• forms @ weak spot in Earth’s crust where magma is forced up & reaches surface
• causes rapid changes
volcano
![Page 3: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/3.jpg)
ashcrater
![Page 4: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/4.jpg)
Mount St Helens
![Page 5: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/5.jpg)
Before After
![Page 6: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/6.jpg)
![Page 7: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/7.jpg)
will not erupt again
extinct
![Page 8: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/8.jpg)
has frequent eruptions or shows signs of future eruptions
active
![Page 9: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/9.jpg)
Has not erupted for a long time (sleeping)
dormant
![Page 10: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/10.jpg)
![Page 11: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/11.jpg)
4 layers of Earth
outer layer
of rock
![Page 12: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/12.jpg)
plates•large pieces that Earth’s crust is divided into
•constantly moving
![Page 13: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/13.jpg)
fault•break in Earth’s crust
![Page 14: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/14.jpg)
![Page 15: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/15.jpg)
earthquake•sudden movement that causes Earth’s crust to shake
•San Andreas fault in Calif.- many earthquakes
![Page 16: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/16.jpg)
San Francisco earthquake of 1906
![Page 17: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/17.jpg)
focus= place underground where plates start to move- where earthquake begins
epicenter= place on Earth’s surface above focus
![Page 18: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/18.jpg)
![Page 19: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/19.jpg)
huge ocean wave created by an earthquake or volcano
![Page 20: 4th Grade-Ch. 9 Lesson 3 How Can Earths Surface Change Rapidly](https://reader036.vdocuments.mx/reader036/viewer/2022062706/557d173dd8b42a4a498b4a13/html5/thumbnails/20.jpg)