Plate Tectonics Flashcards
How many plates is the world made up of?
The Earth’s lithosphere is composed of seven or eight major plates(depending on how they are defined) and many minor plates.
What is plate tectonics?
Plate tectonics is the theory that Earth’s outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.
What is the molten rock called underneath the Earth
Magma
where would you find the ring in fire?
it goes across the pacific ocean
What is the molten rock called above the Earth
Lava
How many centimeters do the plates move per year?
1-10cm
What year was the theory of continental drift proposed?
1915
Where do earthquakes take place?
along the faults
What are some of the Natural Disasters that an Erupting Volcano can cause?
Tsunami’s and Earthquake’s
Where do the most Devasting Earthquakes and Tsunamis occcur
The Ring of Fire
