Science 18-Week Assessment Review over chapters 6,10,12,13
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| *Chapter 6* | *Rocks*
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| What kind of rock forms when magma or lava cools? (Examples: granite, basalt, obsidian, and pumice.) | Igneous Rock
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| An igneous rock with large crystals most likely would have cooled... | ...slowly, below ground. (Example: granite)
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| A conglomerate is a what type of sedimentary rock? | Clastic Rock (Which means is formed from smaller (rounded) rock pieces cemented together. An example is puddingstone.)
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| What kind of rocks form when other types of rocks are subjected to intense heat and pressure. (Examples: marble and slate) | Metamorphic Rock
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| ____________________ is a change in the texture, structure, or chemical composition of a rock due to temp. and pressure over a large area. | Regional Metamorphism
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| Name some sedimentary rock s that are well sorted: | sandstone, shale
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| This sedimentary rock often contains fossils, and forms from the remains of marine organisms. | What is limestone?
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| Metamorphic rock that is... has been exposed to tremendous pressure at tectonic plate boundaries, which causes its minerals to form layers or bands. | ...foilated...
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| *Chapter 10* | *Plate Tectonics*
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| The __________ is made up of the crust and rigid upper mantle. (It's what the tectonic plates are made out of.) | lithosphere
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| Name three pieces of evidence used to support Wegener's hypothesis of continental drift. | -fossils from the Mesosaurus, tropic plants (Africa, S. America
Antarctica)
- rock formations that matched up
-changes in climatic patterns
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| You would find a subduction zone at which type of plate boundary? | You would find a subduction at a -convergent- boundary.
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| This is the ocean the Ring of Fire- a chain of active volcanoes and earthquakes- is located around. | What is the Pacific Ocean?
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| The country of _______ sits atop a divergent or transform plate boundary? | -Iceland-; divergent boundary
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| True or False: Sediment is thicker closer to the center of a mid-ocean ridge. | False
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| * Chapter 12* | *Earthquakes*
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| What is the sudden return of a deformed rock back to its undeformed shape? | Elastic rebound it is.
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| Is the epicenter or the focus the location on a fault where the first motion of an earthquake begins? | the focus
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| Earthquakes with ____________ usually cause the most damage. | shallow focus
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| This is caused by an earthquake whose epicenter is on the ocean floor. | A tsunami.
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| The measure of 1.________ of an earthquake is called 2._________, and is measured on the 3._____________. | 1. strength
2. magnitude
3. Richter scale
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| Define seismograph | A seismograph is an instrument used to record seismic waves.
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| The measure of how much damage an earthquake causes is called _________. (1) What is it measured on? (2) | 1. intensity
2. It is measured on the Modified-Mercalli Scale.
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| *Chapter 13* | *Volcanoes*
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| What is the type of lava that flows easily and cools with ropy appearance? | pahoehoe
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| The bits and pieces of rock and ash that are ejected from a volcano during an explosive eruption. | What is pyroclastic material?
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| Define Viscosity | The resistance to flow of a fluid; the thickness or stickiness of a magma/lava.
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| Hawaiian Islands | Type of volcano: shield
Type of magma/lava: mafic
Origin of magma: oceanic
Viscosity: low
Type of eruption: quiet
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| Mt. St. Helens | Type of volcano: composite
Type of magma/lava: felsic
Origin of magma: continental
Viscosity: high
Type of eruption: explosive
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| The Hawaiian Islands formed from a hot spot on the ocean floor, unlike Japan, which is considered an __________. | island arc
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| What type of lava is thicker than pahoehoe and cools with a rough texture? | aa
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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