Convection
What does hot air do in convection?
Hot air rises.
Earths ______________ field reverses from time to time?
Magnetic
What are earths first two layers?
What is Inner core, Outer core?
What does convection have in common with mountains?
When convection currents meet on a surface, if they are the same they rise and and form a mountain.
What are you feeling when the ground shakes?
An earthquake.
What does cold air do in convection?
What is cold air sinks.
What is the most outer solid portion of the planet earth?
Crust.
What is the last layer of Earth?
Oceanic crust.
What happens to temperatures in the mantle?
The temperature increases as you go deeper.
Do transform boundary's create valleys and basins or earthquakes?
Earthquakes.
What is convection?
The transfer of heat by the movement of a heated fluid.
What is the source of heat in the mantle?
Radioactivity.
Which layer consists of molten?
Outer core.
What is the only planet that has an atmosphere containing 21 percent oxygen.
Earth.
Do divergent boundary's create valleys and basins or volcanoes and mountains?
Valleys and basins.
What is conduction?
Heat transfer by direct contact of particles of matter.
Which zone below the lithosphere is more plastic than the lithosphere so its easier to bend and move.
Asthenosphere.
What are the layers in order?
Inner core, Outer core, Lower mantle, Upper mantle, Asthenosphere, Lithosphere, Continental crust, Oceanic crust.
What is the difference between the inner core and the outer core?
The inner core is solid and the outer core is liquid.
When two currents meet and are the same what happens?
They rise forming a mountain.
What currents have been acting like a conveyor belt moving the lithosphere above for?
The past 4 billion years.
What are the deepest parts of the ocean called?
Trenches.
What do scientists believe explains the increased density of material deeper into the mantle?
The increased amount of iron.
How deep is the total core of the earth?
2206 miles.
Do convergent boundary's create mountains and volcanoes or valleys and basins?
Mountains and volcanoes.