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science
part 2
| Term | Definition |
|---|---|
| what drives the constant slow movement of the earths plate | convection in earth's mantle |
| where do divergent boundaties occur under the ocean and what feature do they form on land | under ocean : mid-ocean ridges on land : rift vallys |
| describe the result of a collision between two continental plates at a convergent boundary | mountain ranges |
| what type of fault is created by tension at divergent plate boundaries | normal fault |
| which type of plate boundary involves two plates sliding past each other in opisite directions and what gealogical event can result | tranceform boundaries can result in earthquaks |
| what difference between the focus and the epicenter of an earthquake | focus : triggers the point beneath earth's surface epicenter: the point directly above the focus on earth's focus |
| what is seismograpg and what is the term for the record of seismic waves it produces | a machine used to record the movement of seimic waves record is called seismogram |
| how does the visco sity of magma determine whether a volcanic eruption will be quite or explosive | low viscosity= quite viscosity and high viscosity = explosive |
| describe the formation process of volcanoes that results in island arcs | two oceanic plates converge |
| what are hot spots and how do they cause the formation of volcanoes | when magma from deep within the mantle erupts |
| describe the structure and coposition of a composite volcano referencing the types of eruptions that form it | alternating quiet explosive eruptions forming tall cone shaped mountains |
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