The widest section of the earth is
2900km
2850km
what sits on top of th asthenosphere?
rocks in the upper mantle which are solid
iron and nickel that generate heat
what is liquid and usually at the junctions of....allowing it to flow
crystalks
mantle
what happens to silicate rocks due to heat and pressure?
the silicate rocks are in a thick liquid state and so can flow and become denser with depth
the silicate rocks are in a thick liquid state and so can flow and become less denser with depth
how hot the the core?
4000-6000
5000-6000
hw many times denser is the core than the crust?
2x
4x
what is the radius of the core?
1100km
1200km
what creates convection currents?
the heat in the core
the mantle