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Andy Sci. 703

7th Grade Science Terms

Continental Drift Hypothesis that the continents had once been joined together and that the continents have slowly moved apart over Earth's surface.
Convergent Boundary Two plates push against eachother, one is forced down beneath the other.
Divergent Boundary Where two tectonic plates are moving away from one another.
Transform Boundary Two plates slide past one another, in this boundary, neither plate is added to at the boundary, nor destroyed.
Plate Tectonics Scientific theory that describes the large scale motions of Earth's lithosphere.
Latitude A line that goes east to west,measure North and South of the equator.
Longitude A line that goes North to South and measure east to west.
Equator The line that goes through the middle of Earth.
Density Mass divided by volume.
Core Solid center of Earth
Crust Outside layer of Earth
Mantle The middle layer of Earth
Asthenosphere Part of the upper mantle that exhibits plastic properties.
Earth Science The study of Earth and space.
Variable Different factors that you can change in an experiment.
Independent Variable The variable that you change
Constants The variables you do not change in an experiment.
Dependent variable The variable being measured.
Plains Large, flat areas, often found in the interior regions of continents.
Plateaus Flat. raised areas of land made up of rocks that have been uplifted by forces within Earth.
Folded Mountains Rock layers folded like a rug that has been pushed up against a wall.
Volcanic mountains Begin to form when molten material reaches the surface through a weak area of the crust.The materials pile up, layer upon layer, until a cone-shaped structure forms.
Prime meridian An imaginary line that represents 0 degrees longitude.
Map scale The relationship between the distances on the map and distances on Earth's surface.
Map legend Explains what the symbols used on the map mean.
Created by: Andy703