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MHMS Ever-changing Earth - Learning Set 1

Volcano a vent in the surface of Earth through which magma and associated gases and ash erupt.
Earthquake a sudden motion or trembling in Earth caused by the abrupt release of slowly accumulated strain.
Geology (geologic) the study of planet Earth: the materials of which it is made, the processes that act on these materials, the products formed, and the history of the planet and all its forms since its origin.
Earth Structure a definable shape formed by geologic activity.
Latitude a north-south measure of a point on Earth’s surface relative to the Equator. It is measured in degrees (0º to 180º) north or south from the Equator.
Longitude the east-west position of a point on Earth’s surface, relative to the Prime Meridian. It is measured in degrees (0° to 180°) east or west from the arbitrary line.
Equator an imaginary line around the middle of Earth that is an equal distance from the North and South Pole.
Prime Meridian an imaginary line chosen on Earth’s surface that stretches from the North Pole to the South Pole and passes through Greenwich, England.
Geologist A scientist who studies the origin, history, and structure of Earth.
Topography the general arrangement of a land surface, including its relief (height and slope) and the position of its natural and human-made features.
Elevation the vertical distance (height) from sea level to a point on Earth’s surface.
Depth distance below sea level of a point on Earth’s surface.
Sea level the average height of the surface of the oceans; it is used as a reference point for the measurement of elevation and depth.
Topographic Map A map showing the natural and human-made configuration of a land surface.
Contour line A line on a map that connects points of equal elevation of the land surface.
Contour interval Difference in elevation between contour lines.
Created by: bonniehodder