In what year did Alfred Wegener propose the theory of 'continental drift'?
What is 1915.
100
This type of rock can easily be scratched.
What is sedimentary rock.
100
This era equals to 87% of the time line.
What is Precambrian era.
100
This landform takes up the majority of Canada and was formed in the Precambrian era.
What is the Canadian Shield.
100
This material left from retreating glaciers is rich in nutrients and is excellent for farming.
What is till.
200
Constantly moving land masses collided and formed a supercontinent called this.
What is Pangaea.
200
The process of the breaking down of rocks into small particles is called...
What is weathering.
200
In what era did the Rockies start forming?
What is the Mesozoic era.
200
This region is known as the "breadbasket" of Canada.
What is the Interior Plains.
200
This type of feature is a long, tear-drop-shaped sedimentary formation.
What is a drumlin.
300
Canada's land mass was once located in a warm, tropical climate, but as it shifted away, ancient life forms were changed into this, which now plays a big role in our economy.
What are fossil fuels.
300
The main agents of erosion are animals/machinery, wind, water and ...
What is gravity.
300
What event marks the division between the Paleozoic and Mesozoic eras?
What is the extinction of many plant and animal species.
300
Located up north, this landform is barren of trees and vast areas are covered in permafrost.
What is the Innuitian Mounatains.
300
These huge rocks called ____________ seems out of place due to glaciers picking them up and moving them far away from their original spot.
What are erratic boulders.
400
Unequal heat distribution from the mantle cause ______________ which make the earth's plates move.
What are convection currents.
400
This type of chemical weathering is caused when carbon dioxide combines with ________ in the air which slowly crumbles rocks over time.
What is (slightly) acidic rain.
400
In this era, North America was covered in ice sheets.
What is the Cenozoic era.
400
This landform stretches from Newfoundland, Canada to Alabama, U.S. and was created in the Paleozoic era.
What is the Appalachians.
400
These glacial features are long, narrow coastal valleys that were carved out by glaciers.
What are fjords.
500
According to the plate tectonics theory, how many plates is the earth's outer shell made up of?
What is twenty.
500
This type of physical weathering is caused by the expansion of rocks in high temperatures during the day and contraction in cold temperatures at night.
What is exfoliation (or flaking).
500
This era equals to 4% of the time line.
What is the Mesozoic era.
500
What is the bedrock of the lowlands mainly formed from?
What are eroded sediments (from the Shield).
500
Long narrow ridges left by retreating glaciers are called...