Fill in the blank: Alfred Wegener’s hypothesis that all the continents were once connected in a single large landmass that broke apart is called ___________.

Fill in the blank: The Earth’s crust that lies beneath the ocean waters is called the ___________.

Fill in the blank: The technology that uses sound to map the ocean floor is called ___________.

Fill in the blank: Mountain ranges found on the ocean floor are called ___________.

Fill in the blank: Deep underwater troughs on the seafloor are called ___________.

Fill in the blank: The process by which new oceanic crust continuously forms along mid-ocean ridges and is destroyed at ocean trenches is called ___________.

Fill in the blank: The cycling of particles or materials based on their densities due to changes in temperature where hotter, less dense materials will rise and colder, more dense materials will sink is called ___________.

Fill in the blank: Sections of the Earth’s crust that includes the seafloor, not the land we walk on, are called ___________.

Fill in the blank: The sections of the Earth’s crust (continents) and part of the upper mantle are called ___________.

Fill in the blank: The boundary where two plates move toward each other is called a ___________.

Fill in the blank: The force caused by the squeezing together of plates is called ___________.

Fill in the blank: Areas where one plate boundary with greater density squeezes with another less dense plate and moves below it are called ___________.

Fill in the blank: The force caused by the pulling apart of plates is called ___________.

Fill in the blank: A fracture (break) that occurs when rocks break and results in moving rock layers causing earthquakes is called a ___________.

Fill in the blank: An area of many fractured pieces of crust along a large fault is called a ___________.

Fill in the blank: The boundary where two plates move away from each other is called a ___________.

Fill in the blank: A lowland that is between two highlands is called a ___________.

The area where two plates are sliding past each other in a horizontal direction is ________?

The boundary where two plates slide past each other is ________?

The natural features of the Earth’s surface are_______?

A large mass of ice that forms on land is _________?

The movement of rocks under in the crust of the Earth that releases energy and causes the ground to shake is _________?

Earthquake waves we feel are _________?

A scientist that measures earthquakes is ____________?

A machine that measures the magnitude or strength of a quake is a _________?

A rating scale that measures the magnitude or strength of an earthquake on a scale from 1-10 is ___________?

A rating scale that measures the energy released by the earthquake by measuring the size of the fault that breaks, the motion that occurs along the fault and the strength of the rocks that break is __________?

A rating scale that measures the amount of damage that has occurred from an earthquake's effects on people and structures is _________?

A wave caused by an earthquake that occurs at the bottom of the ocean floor is _________?

The rapid downhill movement of soil, loose rocks and boulders is __________?

A building’s ability to stand up against the vibrations caused by most earthquakes is _______?

A vent in Earth’s crust through which molten rock flows through is _________?

Large bodies of magma found deep inside Earth, causing magma to break through Earth’s mantle and crust is _________?

Materials that form inside of a volcano and are released when a volcano erupts is _______?