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Chapter 1
Studying for 6th grade science quiz.
| Term | Definition |
|---|---|
| geologist | An expert in geology who studies what the Earth is made of and how it was formed. |
| rock | The material that forms earth's hard surface. |
| geology | The modern science of_______the study of planet earth. |
| constructive force | Shape the surface by building up mountains and landmases. |
| destructive force | That slowly wear away mountains and eventually every other feacher on the surface. |
| continent | They knew that there were 7 great land masses. |
| seismic wave | When earthquakes occur they produce what? |
| pressure | A force pushing on a surface or area. |
| crust | A layer of rock that forms the outer layer of the earth. |
| basalt | A dark dense rock with a fine texture. |
| granite | A rock that has larger crystals than basalt and is not as dense. |
| Lithosphere | The uppermost part of the mantle and the crust form a rigid layer. |
| asthenosphere | This is a soft layer |
| inner core | A dense ball of metal. |
| convection | Heat transfer by the movement of heated fluid. |
| density | Is a measure of how much mass there is in a volume substance. |
| convection current | Continue as long as heated fluid is added |
| heat transfer | Energy going from hot objects to cold ones. (hot pot burning your cool hand) |
| mantle | A layer of hot rock. |
| outer core | A layer of molten metal surrounding the inner core. |
| radiation | The transfer of energy through empty space. |
| conduction | Heat transfer by direct contact of particles. |
| continental drift | The pieces slowly moved to where they are today. |
| Pangea | Means all lands. |
| fossil | Any trace of ancient organisms that have been preserved in rock. |
| deep-ocean trench | Long and narrow on the seafloor. |
| mid-ocean ridge | The longest chain of mountains in the world. |
| sonar | A device that bounces sound waves of underwater objects. |
| seafloor spreading | Continuously adds material to the ocean floor. |
| subduction | The process where the ocean floor sinks beneath a deep ocean trench. |
| plate | The lithosphere is broken into separate pieces called what? |
| scientific theory | A well-tested concept that explains a wide range of observations. |
| plate tectonics | Slow motion, driven by convection currents in the mantle. The theory of plate tectonics explains the formation, movement, and subduction of Earth's plates. |
| fault | Extend deep into the in Earth's crust where rocks have slipped past each other |
| transform boundary | A place where two plates slip past each other, moving in opposite directions. |
| divergent boundary | The place where two plates move apart, or diverge. |
| rift valley | A deep valley called a ______ forms along the divergent boundary. |
| convergent boundary | The place where two plates come together, or converge. |
Created by:
WadeOwe11
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