Science Vocab Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
Fossil | the preserved remains or traces of ancient organisms |
Pangaea | the single giant landmass that existed more than 200 million years ago and that gave rise to the present day continents |
Theory of Continental Drift | the theory, proposed by Alfred Wegener, that the continents were once joined together and have since drifted apart |
Mid-ocean Ridge | an undersea mountain chain where new ocean floor is produced; a constructive (divergent) plate boundary |
Ocean Floor Spreading | the process in which old ocean floor is pushed away from a mid-ocean ridge by the formation of new ocean floor |
Transform Fault | a fault that runs across a mid-ocean ridge |
Trench | a V-shaped valley on the ocean floor where old ocean floor is subducted; a destructive (convergent) plate boundary |
Subduction | the process in which crust plunges back into the interior of the Earth |
Theory of Plate Tectonics | the theory that links together the ideas continental drifting and ocean floor spreading and explains how the Earth has changed over time |
Tectonics | the branch of geology that deals with the movements that shape the Earth's crust |
Lithosphere | the topmost solid part of the Earth, which is composed of the crust and some of the mantle |
Divergent Boundaries | a plat boundary at which plates move apart |
Convergent Boundaries | a plate boundary at which plates come together |
Strike-slip Boundaries | a plate boundary at which two plates slip past one another horizontally |
Convection Currents | a movement of materials caused by differences in temperature |
Created by:
Erin M
Popular Science sets