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Earthquakes Scott
Earthquakes and Earth's interior
| Question | Answer |
|---|---|
| What two things increase the deeper you go into the Earth? | Temperature & Pressure |
| What shows up that Earth's interior is NOT the same all the way through? | Earthquakes |
| What offers clues that Earth's inside is hot? | Volcanic Eruptions |
| The outer crust is the BLANK and least BLANK of all layers. What are the blanks? | Coolest and & least dense |
| In the outer crust, there are two types, what are they? | Oceanic and Continental |
| Define Oceanic crust | Crust that lies beneath the ocean, ranging from 3 to 6 miles thick |
| Define Continental crust | Crust that contains mostly land, ranging from 9 to 43 miles thick |
| What is the layer under the crust and what is it made of? | The mantle; made of rock that is more dense and thick than crust |
| What percentage does the mantle make up of the Earth's interior? | 83% |
| The top part is BLANK than the lower part of the mantle. Fill in the blank | Rigid |
| The top part of the mantle with part of the crust is called | the lithosphere, which is broken into pieces called plates |
| Where do the plates move? | Over the lower part of the mantle right below it, which is called the asthenosphere |
| The inner most layer is the BLANK. What are the two layers in it? | Core; outer core and inner core |
| What are each layer of the core made of? | The liquid-outer core is made of iron. Solid-inner core is made of iron and nickel |
| The plates in the lithosphere do what on top of the asthenosphere? | grind, collide, move past one another, and break and spread apart |
| Define plate boundary | the place where edges of plates meet |
| When plates collide at boundaries, what can form? | mountains and trenches |
| When the boundaries slide they build up BLANK in the rock and it BLANK and BLANK. | energy; twists and compresses |
| When boundaries slide but build up too much energy, what will happen to the rock and what will it cause? | the rock breaks causing an earthquake |
| Which plate is more dense, continental or oceanic? | Oceanic |
| Which plate is more thick, continental or oceanic? | Continental |
| What are the three types of boundaries? | Convergent, divergent, and transform |
| The edges crumbles and form mountains when which type of plates collide at a convergent boundary? | Continental |
| Define subduction | The process by which one plate of the lithosphere sinks and slides under another |
| The bending of an oceanic plate creates a what? | A trench, or a deep valley at the plate boundary |
| How does a volcano forms? | As the plates sink deeper, more heat and pressure can form releasing water and causing melting to occur. As the melting earth rises, this causes a volcano to form. |
| How is an oceanic ridge formed? | As rock cools, new oceanic crust forms and the mantle pushes more rock through |
| Divergent boundaries can form in a BLANK continental plate | Thin |
| How is a rift valley formed? | The rising mantle causes a rock between two continental plates. Melted rock goes in the open spaces. |
| Can a transform boundary cause earthquakes? | Yes |
| What is a transform boundary? | When a plate fractures allowing two plates to past one another without creating any new crust |
| Spreading ridges form when hot rock is BLANK under a plate causing the surface to do what? | Flowing; thin and break |
Created by:
beccacapobianco
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