Science Final chp. 10

Because of the enormous pressure, the inner core is a

solid

Oceanic crust is composed mainly of which type of rock

Basalt

The outer core is made of iron and is liquid. Which figure is this

C, the next circle form the inner core

Which of the following is the correct order of Earth from coolest temperature to warmest temperature

Crust, mantle, core

The inner core is made mostly of iron and is solid. Which figure is this

D, the smallest circle

The movement of the lithospheric plates is thought to be caused by ----conduction--- currents in Earth's lower mantle

False, convection

The outermost layer of Earth's surface is called the ---mantle

False, crust

The ---asthenosphere-- is the layer of Earth that consists of the crust and the upper mantle

False, lithosphere

What layers compose Earth's core? How are they different? Show are they similar?

The layers that compose Earth's core are the outer core and the inner core. They are different because the outer core has less pressure than the inner core, it is a liquid. The outer core is so hot it melts the iron. The inner core has an enormous amount of pressure so it is a solid. They are both made of iron.

The material that makes up Earth's core is ---denser---- than the material in the mantle

True

The plates that move on Earth's surface are pieces of ---lithosphere

True

The center of Earth is referred to as the

core

The outermost layer of Earth is called the

crust

In Earth's lower mantle, ____ material rises and _____ material sinks, creating a convection cell

hot, cool less dense, more dense more buoyant, less buoyant ALL OF THE ABOVE

Mountain ranges on the continental crust cause the crust to

push down into the mantle

Continental crust is primarily composed of which rock

Granite

Describe how oceanic crust is different from continental crust in terms of thickness, density, and rock composition.

The oceanic crust is more dense and thinner than the continental crust. The oceanic crust is mostly made up of basalt. The continental crust is thicker and less dense than the oceanic crust. The continental crust is made of mostly granite and adesite.

Continental crust is primarily composed of ---granite

True

The layer of Earth between the crust and the core is the

mantle

Oceanic crust is ______ than continental crust

more dense