Question | Answer |
How old is the earth? | 4.6 billion years old. |
Pangea | It is a supercontinent, which includes all of the earth's masses. It exisited from 200 |
Meltwater | It is water resulting from the melting of glacier ice and snow. |
Topography | Natural and features of a landscape. |
What is the largest and most easternmost vegetation reigon? | Boreal and Taiga |
What is the smallest and most southernmost vegetation reigon? | Decidious |
What is the wettest and westernmost vegetation reigon? | West Coast |
What is the coldest and northernmost vegetation reigon? | Tundra |
Glaciation | It is the state of being covered by glaciers or massive ice sheets. |
Glaciers | It is a slow moving mass of ice. |
Convection Current | It is circular movement in a gas or liquid created by uneven heating in the mantle. |
Ridge | It is formed when two plates move apart and the heat comes up. |
Trench | It is formed when two plates collide and one subucts under another. |
Subducting | It is when one plate slides under another. |
Land Formations | It is a natural feature on the Earth's surface and there are three types of them. |
Highlands | It is an area of high elevation containing mountains and plateaus. |
Plateaus | It is the elevated flat area between highlands. |
Lowlands | It is an area of low elevation containing plains and hills. |
Canadian Shield | It is a large area of Precambrian rock that forms the core of Canada. |
Erosion | It is the wearing away of the Earth's surface followed by the movement to other locations. |
Weathering | It is the breakdown of rock into small particles. |
Escarpment | It is a steep cliff formed by erosion or faulting. |
Sediments | Eroded material, for example sand and gravel that is deposited by wind, water or ice. (WWI) |
How are earthquakes and volcanoes formed? | They are caused by the movement of the Earth's plates. |
Air Mass | It is a large body of air, having the same moisture and temperature conditions throughout. |
Prevailing Winds | They are winds that are most commonly found in an area, for example, over most of Canada's wind is westerlies. |
Polar Front | It is a stormy boundary between cold and dry polar air and warm moist tropical air. |
Jet Stream | It is a west to east movement of air in the mid |
North Pacific Current | It affects the west coast and changes the temperature. |
Cold Labradour Current | It causes fog conditions and also causes icebergs to melt (Ice Berg Alley). |
Jet Stream Current | It brings warmer currents over Canada. |
Condensation | Water vapour is cooled, and changes from an invisible gas to liquid water. The vapour form of this forms clouds. |