WorksheetsPlate Tectonics / Density / Convection / Radiometric Dating
Total questions: 23
Worksheet time: 12mins
Which process is believed to drive tectonic plate movement?
Convection
Plate Movement
Continental Drift
Subduction
What happens to the crust at a subduction zone?
New crust is made
Crust separates to form a mid-ocean ridge
Crust is recycled into the mantle and melted down
Crust separates to form a volcano
Which color is the most dense?
Blue
Yellow
Red
Which color is the least dense?
Blue
Yellow
Red
Which layer of the Earth is least dense?
Core
Mantle
Crust
Which layer of the Earth is most dense?
Core
Mantle
Crust
Which type of boundary is this?
Divergent
Convergent (oceanic / continental)
Convergent (continental / continental)
Transform
Oceanic crust is less dense than continental crust.
True
False
Which type of boundary is this?
Divergent
Convergent (oceanic / continental)
Convergent (continental / continental)
Transform
Which type of boundary is this?
Divergent
Convergent (oceanic / continental)
Convergent (continental / continental)
Transform
This is a photo of a mid-ocean ridge at a divergent boundary, which location would have the oldest rocks?
A
B
C
D
This is a photo of a mid-ocean ridge at a divergent boundary, which location would have the youngest rocks?
A
B
C
D
Is it possible that even though new crust is being formed on Earth, the surface area of Earth is not changing?
Yes, because as the new crust is being made, older crust is being destroyed
Yes, because as new crust is being formed, plates collide with more force to create higher mountains
No, the surface area of Earth must be expanding
Which of these is true of the water that is near the heat source?
It’s heating up so it is becoming more dense.
It’s cooling down so it is becoming more dense.
It’s cooling down so it is becoming less dense.
It’s heating up so it is becoming less dense.
Which of these is true of the water that is near the surface?
It’s heating up so it is becoming more dense.
It’s cooling down so it is becoming more dense.
It’s cooling down so it is becoming less dense.
It’s heating up so it is becoming less dense.
Here's snap shots of a matter's molecules. Which would float on top of the other?
A
B
How much of the parent isotope is present at 0 half-lives?
100
50
25
75
How much of the daughter isotope is present at 0 half-lives?
100
50
25
0
How much of the parent isotope is present at 1 half-life?
100
50
25
0
How much of the daughter isotope is present at 2 half-lives?
100
50
25
75
If we start off with 800 atoms of Uranium 238, how much would there be left after one half life?
800
400
200
100
If we start off with 800 atoms of Uranium 238, how much would there be left after 2 half-lives?
800
400
200
100
The half-life of carbon-14 is 5700 years. If a fossil has 1500 atoms of nitrogen-14 (daughter isotope) and 500 atoms of carbon-14, how old is it?
0 years
5700 years
11400 years
17100 years
