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