Flashcards in Chapter 8.2 Deck (13)
Waves of energy that travel through the Earths crust, caused by earthquakes.
Movements of the plates of the Earths crust in relation to each other.
A super continent that existed about 225 million years ago. All of the landmasses that existed at this time were joined together to form the super continent.
The vast sea surrounding the super continent of Pangaea.
The earths crust, which includes landforms, rocks and soil.
Crust material and thickness
Made of mostly solid rock and varies in thickness from 5km under the ocean to 70km under mountain ranges like the Himalayas.
A blanket of gases that surrounds the earth
Atmosphere height and make up
At a height of approximately 145km and is mostly made up of nitrogen and oxygen.
What is the mantle made of, its temp, and how thick
- Made of partially molten rock
-Temp mostly between 500-2000 degrees Celsius
- About 2900km thick
What is the outer core made of, its temp and thickness
- Made of molten iron and nickel
- Temp between 4000-6000 degrees celsius
- 2300km thick
The water on Earth including oceans, lakes, rivers, rain and mist
What is the inner core made of, temp and thickness
- Mostly iron
- Temperatures up to 7000 degrees celsius
- About 1200km thick