Dynamic Earth

2. wave is a wave motion in a solid medium where the medium moves perpendicular to the direction of the travel of the wave
4. Boundary is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts which eventually become rift valleys.
5. Boundaries are places where plates slide sideways past each other
7. Map is a type of map characterized by large-scale detail, usually using contour lines.
10. boundaries area tectonic boundary where two plates are moving away from each other and new crust is forming from magma that rises to the Earth's surface.
11. fault geologic fault in which the hanging wall has moved downward relative to the footwall. Normal faults occur where two blocks of rock are pulled apart, as by tension.
12. fault A geologic fault in which the hanging wall has moved upward relative to the footwall. Reverse faults occur where two blocks of rock are forced together by compression.
13. Ridges a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading.
14. Core is one of the earth's fluid layers and about 2,400 km thick.

1. Analysis is using the fact that physical quantities added to or equated with each other must be expressed in terms of the same fundamental quantities for inferences to be made about the relations between them.
2. a record produced by a seismograph
3. Mantle is made up rock that is a fluid and can move. It is this fluidity that powers the movement of the tectonic plates of the Earth's crust.
6. is discontinuity in a volume of rock, across which there has been significant displacement as a result of rock.
8. wave a longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph.
9. Currents is a current in a fluid that results from convection.