Plate Boundary Theories
What have the continents done over time to get to their current positions?
Drifted
Plates colliding
Converge
How many layers does the Earth have?
4
T/F: Divergent boundaries form: Volcanoes, Ocean trenches and Island chains
False, that's what convergent (subduction) boundaries form
What technology can measure plate movement and it's severity
Seismographs
Who developed the theory of continental drift?
Alfred Wegener
Plates moving apart
Diverge
The Earth's crust is broken up into
Tectonic Plates
T/F: The dinosaurs appeared during the Paleozoic Era and went extinct during the Mesozoic Era
False, they appeared and also went extinct during the Mesozoic Era
What technology is common in boats to map the ocean floor?
Sonar
Who discovered dinosaur bones in Alberta?
Joseph Tyrell
Plates sliding next to each other
Transform
What two layers of the Earth are primarily made of nickel and iron?
Inner and outer cores
T/F: Plate boundaries are the same as continent borders
False
What technology can help us determine the composition of the ocean floor?
Deep sea drilling and ocean sediment cores
Who proposed that mountains in Western NL are part of the Appalachian Mountains on the Eastern coast of America?
Harold Williams
When a heavier plate goes under a lighter plate
Convergence (subduction)
What are the two layers of the Earth that are solid?
Crust and inner core
T/F: Tectonic plates move about a metre each year
False, they only move a few centimetres each year
What technology can you use to measure magnetic fields?
Magnetometer
Who proposed the idea of transform boundaries?
John Tuzo Williams
What type of movement forms: Horns, Drumlins, Eskers, Moraines and Kettles?
Glaciel
Plate Tectonic Movements are generated by the movement of what in which layer?
Convection currents in the mantle
T/F: There was an ice age during the Cenozoic Era
True, there was!
What technology takes pictures of the Earth while in orbit?
Satellites