| A | B |
|---|
| Canadian Shield | area of ancient rock covering most of eastern Canada |
| coniferous forest | found mainly in the northwestern parts of Canada, made up of fir and pine trees |
| Great Lakes | Form part of the boundary between the U.S. and Canada |
| St. Lawrence River | connects the Great Lakes to the Atlantic Ocean |
| Mackenzie River | forms in the Rockies; flows north to the Arctic Ocean |
| Gulf of Alaska | borders western Canada |
| Hudson Bay | large body of water that borders eastern Canadian provinces |
| rain shadow | dry side of mountain with little rainfall |
| Interior Plains | found between the Rockies and Appalachians |
| permafrost | permanently frozen soil found in Arctic tundra |
| Rocky Mountains | largest mountain system in N. America |
| tundra | cold, dry region covered with snow most of year |
