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plate tectonics
6th grade plate tectonics
| Question | Answer |
|---|---|
| Holes drilled several kilometers into Earth's crust provide direct evidence about Earth's interior in the form of ? | rock samples |
| Geologists obtain indirect evidence about Earth's interior by? | recording and studying seismic waves |
| What is the correct order of Earth's layers? | crust, mantle, outer core, inner core |
| Earth's inner core is made of what? | a dense ball of solid metal |
| When you touch a hot pot or pan, energy moves from the pot to your hand. This is called? | heat transfer |
| The transfer of energy through empty space is called? | radiation |
| Heat transfer within a fluid takes place by? | convection currents |
| What is Pangaea/ | the name of the supercontinent that existed millions of years ago |
| Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypotheses? | evidence from human remains |
| Most geologist rejected Alfred Wegener's idea of continental drift because? | Wegener could not identify a force that could move the continents. |
| What technology did scientists use in the mid-1900s to map the mid-ocean ridge? | sonar |
| In sea-floor spreading, molten material rises from the mantle and erupts | along mid-ocean ridges |
| How did scientists discover that rocks farther away from the mid-ocean ridge were older that those near it? | by determining the age of the rock samples obtained by drilling on the sea floor |
| The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as? | subduction |
| old oceanic crust is more dense than new oceanic crust because it is | cool |
| Most geologists think that the movement of Earth's plates is caused by | convection currents in the mantle |
| A place where two plates slip past each other, moving in opposite directions, is known as a | transform boundary |
| a rift valley forms at a | divergent plate boundary |
| Using data from seismic waves, geologist have learned that Earth's interior is made up of several | layers |
| Earth's magnetic field results from movements in the | outer core |
| Scientists think that convection currents flow in Earth's | mantle |
| A collision between two pieces of continental crust at a converging boundary produces a | mountain range |
| Any trace of an ancient organism that has been preserved in rock is called a | fossil |
| mid -ocean ridges are | found in all of Earth's ocean's |
| The place where two plates come together is known as a | convergent boundary |
| When you touch a hot plate, the heat transfer of heat from the plate to your hand is called | conduction |
| traces of ancient organisms preserved in rock | fossils |
| continually adds new crust to the ocean floor along both sides of the mid-ocean ridge | sea-floor spreading |
| subduction occurs where the oceanic crust bends down toward the mantle at a | deep-ocean trench |
| formation of volcanoes and mountain ranges can be explained by the theory of | plate tectonics |
| The inner core is surrounded by the hot, molten metal layer called? | outer core |
| asthenosphere is in what layer of the Earth | mantle |
| which layer of Earth is made up of part crust and part mantle | lithosphere |
Created by:
kwunschel