Fun Facts
Two types of material in the crust
What is silicon, magnesium, oxygen, calcium, carbon, aluminium, sodium, iron, nickel etc
What is seafloor spreading
When magma seeps out of a plate boundary and creates new crust
What's the name of your teacher's horse?
Dingo (Miss Goldmann)
Mayo (Miss O'Byrne)
What is evidence for seafloor spreading
Age of crust
Crust thickness
3 types of plate boundary
convergent, divergent, transform
Plate in Antarctica
Antarctic Plate
What is the difference between a seismograph and a seismometer
SG - graphs and measures over time
SM - instant digital readings
Evidence of tectonic plate theory (at least 2)
Fossil Evidence
Climate change evidence
puzzle piece continents
Rock formations are the same
Plate in Eastern Europe
Eurasion Plate
Tectonic plates are able to move because the Earth's lithosphere has a higher strength than the underlying...
asthenosphere
True or false - plate tectonics move metres per year
False
How can GPS help us monitor and predict earthquakes?
Locations can be tracked and recorded so we can predict the likelihood and plan for earthquakes
Who first suggested the theory of plate tectonics?
Alfred Wegener
Plate Tectonic Movements are generated by the movement of what?
Convection currents in the mantle
What causes Plate tectonics to move?
Convection currents in the magma
What is the difference between S and P waves (answer, or draw on board)
P waves, also known as primary waves, are the fastest seismic waves and are the first to be detected by seismographs.
In contrast, S waves, or secondary waves, are slower than P waves and can only travel through solids and have a bigger peak and are more destructive.
(accept appropriate drawing)