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- 1. Multiple Choice
Plate tectonics is our current theory of how the movement of continental masses relates to the movement of ocean basins. This movement explains many phenomena, such as
Earthquakes
Volcanoes
Tsunamis
All of the above
- 2. Multiple Choice
The observation that the continents fit together like puzzle pieces is called
Continental plowing
Continental drift
Wandering continents
Shape matching of continents
- 3. Multiple Choice
Plate tectonics, or the movement of pieces of Earth's crust, is thought to be caused by
Hot spots
Convection currents in Earth's crust
Convection currents in Earth's mantle
Convection currents in Earth's core
- 4. Multiple Choice
The Earth's continents were once connected in one giant continent called
Eurasia
Giganticus
Pacifica
Pangaea
- 5. Multiple Choice
Scientists found that the continents were moving apart from each other due to magma rising out of mid-ocean ridges, and they called this
Sea floor spreading
Sea floor rising
Changing sea floor
Underwater volcanos
- 6. Multiple Choice
Which person was the first to publish and publicise his view that a single continent existed about 300 million years ago?
Albert Einstein
Sir Francis Bacon
Alfred Wegener
Alexander Du Toit
- 7. Multiple Choice
Wegener's old theory, called sea floor spreading, was found too simplistic because it did not explain how the continents would move. It was replaced by a theory called
Plate tectonics
Crustal forces
Paleomagnetism
Weather forces
- 8. Multiple Choice
Going from earth's surface to the interior, what trends are found?
Density and temperature increase
Density and temperature decrease
Density increases and temperature decreases
Density decreases and temperature increases
- 9. Multiple Choice
Approximately how many tectonic plates are there?
3
6
12
24
- 10. Multiple Choice
Which of the following was the main reason why scientists did not accept Wegener's hypothesis?
Wegener was smarter than all other scientists
Animals could swim
Wegener could not explain the mechanism for movement of the continents
Continental landmasses were too big to move slowly over Earth’s surface
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