Convergent boundary	Crust	Core	Focus	Fossil fuel
The border formed by the collision of two tectonic plates	The thin and solid outermost layer of Earth above the mantle	The central part of Earth below the mantle; also the center of the sun	The place of origin of an earthquake	A fuel such as coal, oil or natural gas that is formed in Earth from plant or animal remains

Liquid rock produced under Earth’s surface; igneous rocks are made from magma	The gaseous envelope surrounding the earth	The solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle	A collection of stars, dust, and gas bound together by gravity	The attraction of the mass of Earth, the moon or a planet for bodies at or near its surface
Magma	Atmosphere	Lithosphere	Galaxy	Gravity

Divergent boundary	Mantle	Metamorphic rock	Sedimentary rock	Igneous rock
The boundary between two tectonic plates that are moving away from each other	The layer of rock between Earth’s crust and the core	A rock that forms from other rocks as a result of intense heat, pressure, or chemical processes	A rock formed from compressed or cemented layers of sediment	Rock that forms when magma cools and solidifies

Mid-oceanic ridges	Magnetic reversal	Asteroid	Meteor	Mineral
Mountain ranges at divergent boundaries in oceanic crust (ex. Mid-Atlantic Ridge)	Periods of time in which there was a reversal in direction of the Earth’s magnetic field	A small rocky body orbiting the sun	Any of the small particles of matter in the solar system that are directly observable only by their incandescence from frictional heating on entry into the atmosphere	A natural, usually inorganic solid that has characteristic chemical composition, an orderly internal structure, and a characteristic set of physical properties

Ocean trench	Big Bang Theory	Weathering	Volcano	Fault
A long, narrow, deep depression in the ocean bed	The theory that all matter and energy in the universe was compressed into an extremely small volume that 10 to 20 billion years ago exploded and began expanding in all directions	The natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks	A vent in the crust of the Earth or another planet from which usually molten rock, ash and steam are ejected	A crack in Earth created when rocks on either side of a break move

Star

A large celestial body that is composed of gas and that emits light