In each blank, try to type in the
word that is missing. If you've
typed in the correct word, the
blank will turn green.
If your not sure what answer should be entered, press the space bar and the next missing letter will be displayed. When you are all done, you should look back over all your answers and review the ones in red. These ones in red are the ones which you needed help on. Question: Elastic Answer: the sudden return of elastically deformed rock to its shape. Question: Answer: the location within the along a fault at which the first motion of an earthquake occurs. Question: Answer: the on Earth’s surface directly above an earthquake’s starting point, or focus. Question: Seismic Answer: energy released in the form of as rocks along a fault slip into new positions. Question: zoneAnswer: a region of numerous, closely spaced faults. (Ex: North fault zone in Turkey.) Question: Understand how builds up along a fault and gets released.Answer: When tectonic plates push up against each other, or try to slide past each other, stress builds up along the . Friction keeps the plates from moving until that force is overcome and the plates spring into their new position through elastic rebound Question: Understand how the of focus affects an earthquake’s intensity.Answer: With all factors being equal, the deeper the focus (farther below ground), the lower the intensity, and the shallower the focus (closer to the surface), the greater the intensity. Question: Know where earthquakes are most to happen.Answer: Earthquakes are most likely to happen along a transform boundary. Earthquakes are very common around the Ring of Fire Question: Answer: The machine that records vibrations (seismic waves) during an . Question: Answer: A tracing of earthquake motion that is by a seismograph. Question: MagnitudeAnswer: a of the strength of an earthquake. Question: IntensityAnswer: a of the damage caused by an earthquake Question: Understand the difference between the Richter and the Moment Magnitude scale for measuring an earthquake’s magnitude.Answer: Richer scale is base on ground motion only. The Moment Magnitude scale is based on the area of the that moved, the distance the fault blocks moved, and the rigidity of the rocks in the fault zone. Question: Understand how the Modified Mercalli scale is used to measure an intensity.Answer: The Modified Mercalli scale expresses intensity in Roman numerals from I (one) to XII (twelve). The bigger the value, the more damage that was by the earthquake. Question: TsunamiAnswer: a giant ocean wave that forms after a volcanic eruption, submarine (under ) earthquake, or landslide. Question: gapAnswer: an area along a fault where relatively few earthquakes have occurred recently, but where strong earthquakes are to have occurred in the past. Question: how an earthquake can affect buildings and propertyAnswer: Earthquakes can cause buildings to sway and topple over, or to collapse. Things like roads and bridges can be torn apart. Buildings constructed in earthquake-prone areas are usually built with features that make them able to withstand the shaking. Question: Understand what people should do before, during and after an earthquake to be Answer: If a person lives in an earthquake area, they should keep on hand a supply of canned food, bottled water, flashlights, batteries and a portable radio. Question: Understand how earthquake warnings and can be developed.Answer: Scientists study past earthquakes in a region to make approximate forecasts about future earthquakes. Instruments along fault zones can detect small changes in rock and an increase in stress. Question: Continental Answer: The hypothesis that a single large landmass broke up into smaller landmasses to form the continents then drifted to there present locations. Question: sea-floor Answer: the which new oceanic lithosphere forms when magma rises to earths surface at mid ocean ridges and solidifies as older existing sea-floor moves away from the ridge Question: mid-ocean Answer: A long undersea mountain chain that has a steep narrow valley at its center that forms as magma rises from the asthenosphere and that creates new oceanic lithosphere as plates move apart. Question: Who hypothesis of continental driftAnswer: Albert Question: lithosphereAnswer: the solid outer layer of earth that of the crust and the ridge upper part of the mantle Question: asthenophereAnswer: the plastic layer of the mantle beneath the lithosphere Question: divergent Answer: the between tectonic plates that are moving away from each other Question: boundaryAnswer: the boundary between two plates that are Question: transform Answer: the between tectonic plates that are sliding past each other horizontally Question: zonesAnswer: form at a convergent plate boundary when the more dense oceanic crust beneath the less dense continental crust Question: ring of fire Answer: a zone of active volcanoes the Pacific Plates Question: of major tectonic plates worldwide; name of our tectonic plateAnswer: 15; north plate Question: of the boundriesAnswer: and volcanoes Question: magmaAnswer: liquid rock produced under surface Question: Answer: magma that onto earths surface; the rock that forms when lava cools and solidifies Question: Answer: the of a valcano Question: hot Answer: a active area of earths surface, commonly far from a tectonic plate boundary Question: fissureAnswer: a crack through which lava flows to surface Question: Answer: describes magma or igneous rock that is rich in magnesium and iron that is generally dark in color. comes from melted crust Question: Answer: describes or igneous rock that is rich in feldspar and silica and that is generally light in color. comes from melted continental crust Question: Answer: the resistance to flow of a fluid. how sticky or runny magma is. Question: pyroclastic Answer: fragments that form an volcanic eruption Question: caldera Answer: a large, circular depression that forms when the magma chamber below a partially empties and causes the ground above to sink Question: which events may signal an impending Answer: swarm of small earthquakes, increased gasses or small of ash, ground inflation, changes in the slope of the volcanoes flank Question: characteristics of mid ocean Answer: sediment was thinner closer to the center of the ridge, rocks were younger closer to the of the ridge Question: evidence for drift Answer: fossil plant in Antarctica, mountain , similar coastlines Question: examples of boundariesAnswer: divergent, convergent, and Question: volcanoesAnswer: broad at the base with sloping side Question: volcanoes Answer: alternating layers of lava and material Question: cinder Answer: very small, steep volcanoes made from eruptions of pyroclastic material Question: of the hawaiian islandsAnswer: pacific plate moving over a stationary mantle plume. as the plates slide magma comes up through the ocean and conditionally builds a volcano until it breaches the oceans surface and becomes an island |
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
801479
Popular Science sets