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Chapter 1 Vocab.

Across
A trace of an ancient organism that has been preserved in rock
The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle
A device that determines the distance of an object under water by recording echoes of sound waves
The movement of a fluid, caused by differences in temperature, that transfer heat from one part of the fluid to another
The movement of energy from a warmer object to a cooler object
A scientist who studies the forces that make and shape planet Earth
The name of the single landmass that broke apart and made today's continents
Down
The amount of mass in a given space; mass per unit volume
A vibration that travels through Earth carrying the energy released during an earthquake
A rigid layer made up off the upper most part of the mantle and crust
The layer of rock that forms Earth's outer surface
A great landmass surrounded by ocean
The transfer of energy through empty space
The material that forms Earth's hard surface