Earth Science - Chapter 10 - The Theory of Plate Tectonics - Foret
heated/density
Convection is the movement _ material due to differences in _ that are caused by differences in temperatures.
rift valley
The narrow valley that forms where the plates separate is a _ _.
divergent/convergent/transform
The three types of plate boundaries are _ boundaries, _ boundaries, and _ boundaries
crumble/thicken
When two plates that are made continental lithosphere collide, the colliding edges _ and _, which cause uplift that form large _ ranges.
mantle/overlying
As the _ material moves, the _ tectonic plates move along with it.
rises/away/sinks
As the hot material _, the cooler, denser material flow _ from the hot material and _ into the mantle to replace the rising material.
surface/less
Magma rises to the _ and cools to form the warm, light rock that sits higher than the surrounding sea floor because it is _ dense.
scrape/earthquakes
Plate edges at a transform boundary _ against each other in a series of sudden spurts of motions that are felt as _ earthquakes.
mountain/trenches
Plates are often bordered by major surface features, such as _ ranges or deep _ in the oceans.
identify/earthquakes
Scientists _ plate boundaries primarily by studying data from _.
middle/edges/within
Tectonic plate boundaries may in the _ of the ocean floor, around the _ of continents, or even _ continents.
blocks
The lithosphere forms the thin outer shell of Earth and is broken into several _, or tectonic plates.
volcanoes
The location of _ can also help identify the locations of plate boundaries.
convection
The movement of tectonic plates is part of the mantle _ system.
subduction zone
The region along this plate boundary is called a _ _.
water
The tectonic plates ride on the asthenosphere in much the same way that blocks of wood float on _.
collides/subducts/less
When oceanic lithosphere _ with continental lithosphere, the denser oceanic lithosphere _ subducts, or sinks under the _ dense continental lithosphere.
