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Science
| Question | Answer |
|---|---|
| A theory that continents can drift apart from one another and have done so in the past. | continental drift |
| An extremely large landmass when all continents were connected together | Pangea |
| The imprint or hardened remains of a plant or animal that lived long ago. | fossil |
| A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle. | deep-ocean trench |
| Giant undersea mountain range extending around the world like the seams of a baseball. | mid-ocean ridge |
| A system that uses the reflection of underwater sound waves to detect objects. | sonar |
| the idea that the middle of the ocean is spreading apart, moving very slowly in opposite directions. | seafloor spreading |
| Process in which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent boundary. | subduction |
| A slab of Earth's lithosphere that can move around on the planet's surface. | plate |
| A well-tested concept that explains a wide range of observations about a particular scientific question. | scientific theory |
| The movement of the earth’s upper mantle and crust. | plate tectonics |
| A break in Earth's lithosphere where one block of rock moves toward, away from, or past another. | fault |
| Two plates sliding horizontally past each other. | transform boundary |
| Place where two of Earth's tectonic plates are moving apart | divergent boundary |
| a deep valley that forms when two plates drift apart | rift valley |
| a boundary between lithospheric plates where the plates move toward one another and one plate is recycled into the mantle | convergent boundary |
Created by:
starkskal11