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Chapter 3 CPOscience

QuestionAnswer
The study of rocks and rock formations. geology
A method of putting events in the order in which they happened. relative dating
A part of a dead animal or plant that has been preserved for a long time. fossil
The bottom layer of a rock formation is older than the layer on top, because the bottom layer formed first. Superposition
Idea that when layers of sediment are formed, they extend in all directions horizontally. Lateral continuity
States that a vein of rock that cuts across a rock’s layers is younger than the layers. theory of cross-cutting relationships
Fossils can be used to identify the relative age of the layers of a rock formation Faunal succession
Refers to how unstable atoms lose energy and matter over time. radioactive decay
A substance composed of only one kind of atom. element
A representational drawing of a location. map
the height of an object measured from a reference level. elevation
The average level of the ocean; the halfway point between high tide and low tide. sea level
Maps that use contour lines to show elevation. topographic map
Curved lines on a topographic (or bathymetric) map that indicate all the points where the elevation is the same. contour lines
A special area on a map that lists the symbols that are used. legend
A map that shows the depths of a body of water such as a lake or an ocean. bathymetric map
An imaginary line around Earth’s middle and between the north and south poles. equator
An imaginary line through Greenwich, England and perpendicular to the equator. prime meridian
East-west lines that are north or south of the equator. latitude
North-south lines that are east or west of the prime meridian. longitude
Created by: mrsanderson
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