Inside The Earth
By Kiera Steck
The depth of the core ranges between 2890- 6378 km. The cores sub layers are the inner and the outer core. even though the inner core is extremely hot, its under so much pressure that it becomes a liquid. Another fact about the core is that it is made of iron. The iron in the inner core actually makes the planet magnetic. The outer cores temperature ranges between 4,400, 8,000 degrees C. The temperature of the inner core is between 5,000 and 6,000 degrees C. The depth of the inner core is 5,190. Outer cores depth is 2,300. The core makes up about 1/3 of the earth. the outers cores thickness is 2,300 km
the thickness of the inner core is 2.200
5-70 km. The sub layers for the crust is continental and oceanic. The crust is divided into two types oceanic crust and continental. Oceanic crust is found on the sea floor its made out of dense rocks and that's called basalt rocks. The continental crust is mad
out of granite and its found under land masses. A fact about the oceanic crust unlike
Continental crust is that oceanic crust is still being formed in some regions its mostly found in mid ocean ridged. from mid ocean ridged places magma erupts through small or big cracks in the sea floor it creates crust as its cooling. A fact about earths is the crust is thinner beneath the oceans sea floor. Did you know that when India and Asia collided and crashed it formed the Himalayas. Earth quakes and volcanoes are primly found at the plate boundaries. thats all about the crust.
Convection In The Mantle
1:Earth's Insides" Earth's Insides 10/23/14 http://www.colorado.edu/physics/phys2900/homepages/Marianne.Hogan/inside.html
2:) Why does the cool air rise instead of going back underground?
3:) If there was no convection currents could earth quakes happen or could volcanoes still erupt of would volcanoes become dormant?