The Physical Geography of the United States and Canada
Chapter 3 Study Guide

A. Know the following terms:

1. Sacagawea - a Shoshone woman who had a vital role in the exploration of what is now the Northwestern United States

landform - features of Earth's surface, such as mountains, valleys,and plateaus

3. glacier - a thick sheet of ice that moves slowly across land

4. erosion - a process of wind, water, and rain that wear away soil ,stone, and the land

5. river system - a network of major rivers and their tributaries

6. Mount Saint Helens - a volcanoe in Washington that erupted in 1980, killing many people and plants

precipitation - moisture such as rain or snow that falls to Earth ( rain, snow, sleet, or hail)

8. climate - the typical weather of a region

9. vegetation - plant life, such as trees, plants, and grasses

10. economy - the system by which business owners in a region use productive resources to provide goods and services that satisfy people's wants

11. St. Lawrence Seaway - A river of southeast Canada flowing about 1,207 km (750 mi) northeast from Lake Ontario along the Ontario–New York border and through southern Quebec to the Gulf of St. Lawrence.

12. weather - the state of Earth's atmosphere at a given time and place

B. Section 1 From Coast to Coast (pages 69-74)

13. Describe the location of North America.
It is in a spot on Earth where most states have four seasons. It has more animals and plants because we have 4 seasons.
14. What effects have the oceans had on the settlement of North America.

The oceans were too big and dangerous to cross, so not alot of people settled in North America. As time went on, people learned about shipbuilding. Though it was still risky to cross, some people boated across the ocean to North America.
15. What natural processes have changed the geography of North America.

Erosion, volcanoes, earthquakes, and glaciers.

C. Section 2 A Rich Diversity in Climate and Resources (pages 75-79)

16. How have waterways helped people in the past.
It has helped people in the past by getting places, traveling things, and going place to place.

17. How do waterways help people today.
Waterways give docks for importing and exporting goods to and from the country. It gives boats a dock to do that. They also give canals so there is less traffic in the water.
* Practice reading physical maps of the United States and Canada.

D. Essay question – Remember to restate the question in your answer (topic sentence) and end your essay with a conclusion.

18. How have natural disasters changed the physical features of the United States and Canada in the last 50 years?

Discuss each of the following points in your answer (details that support your topic sentence):

Ÿ types of natural disasters that can occur in United States and/or Canada - name at least two
Ÿ when and where at least two natural disasters have occurred – for example, Mount St. Helens in 1980 and the flood of 1993
Ÿ physical changes caused by natural disasters - give at least one example

Brainstorm essay notes here:
Topic Sentence: Natural disasters have changed the physical features of the United States and Canada in the last 50 years in a lot of ways.
  • Types of disasters that occur in the U.S. and Canada: flash floods, hurricane, tornado, earthquake, glaciers, and volcanoes
  • 2 natural disasters that have occurred: flash flood-2008; earthquake- May 2008; hurricanes- Gustav, Hannah, and Ike- August-September 2008; WHERE DID THESE OCCUR?
  • One example of a physical change caused by natural disasters - see pages 73-74