Chapter 1 Lesson 2
A dark rock with fine grains
What is basalt?
Energy carried though rays are
What is radiation?
The earth used to have a super continent named.
What is Pangaea?
Device used by scientist to map ocean floor
What is sonar?
Mountain ranges are formed at these boundaries
What are convergent boundaries?
a wave produced by an earthquake .
What is a seismic wave?
Heat transfer through the movement of fluid
What is convection?
Climates get cooler as continents move closer.
What are the poles?
This occurs at deep ocean trenches.
What is subduction?
At a transform boundary the plates.
What is slide past each other?
layer of hot, solid rock below the crust
What is the mantle?
touching hot sand causes you to receive heat through
What is conduction?
The idea that all of the continents moved
What is continental drift?
An under water canyon is also known as
What is a deep- ocean trench?
The motion of Earth's plates are.
What are slow and constant?
the earth is mostly made up of Iron and.
What is nickel?
The amount of mass in a given substance.
What is density?
The German scientist that studied the super continent.
Who Alfred Wegener?
Molten material erupts inside this central valley
What is mid-ocean ridges?
The lithosphere is broken into sections called
What are plates?
The three main layers of the Earth are.
What are Crust mantle and core
heat in covection currents are caused by
What are the mantle and core?
What two coastlines are used to prove the super continents existence.
What is Africa and South America?
This process or processes change the size and shape of the ocean floor
What are subduction and seafloor spreading?
The earth consists of two types of crust
What are oceanic and continental?