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6th Science Test 1B
Mr.Olson 6th Grade Science Chapter 1B
| Question | Answer |
|---|---|
| The idea that Earth's crust and upper mantle are broken into enormous slabs is called______? | Theory of Plate Tectonics |
| What is the layer of Earth between the core and the crust? | mantle |
| Where do earthquakes and volcanos occur? | plate boundaries |
| What device maps the ocean floor by sending out a sound and then receiving the echo of that sound? | sonar |
| What do we call the process by which new ocean floor is continually being added called? | sea floor spreading |
| A flip of Earth's magnetic field is called what? | magnetic reversal |
| What do we call the part made up of Earth's crust and upper mantle? | tectonic plates |
| What did Alfred Wegener find on seperate continents that he said was proof of his theory? | fossil remains |
| A very long crack in the ocean floor is called a _____? | mid ocean ridge |
| What theory was developed by Alfred Wegener that stated the continents were once one landmass that broke apart? | Continental Drift Theory |
| What device do scientists use to show how particles of iron line up within a rock? | magnetometer |
| What would ne some evidence that the continents were once together? | puzzle like fit of continental shelves, similar fossils, similar mineral deposits |
| What is the area around a magnet where the effects of magnetism are felt? | magnetic field |
| What was the giant landmass called that existed about 200 million years ago? | Pangea |
| Which is thicker: a tectonic plate on land or water? | land |
Created by:
Kaylee Hoffman
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