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Unit 3 Earth's Structure & Processes Crossword Review

Cyndee Crawford

You may use your notes and/or book to complete your puzzle.

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Across
4.Natural fuels that come from the remains of living things; fuels give off energy when they are burned.
7.middle layer; thickest layer; hot softened rock; contains iron and magnesium
12.What would change a sedimentary rock into a metamorphic rock?
14.Forms when molten rock (magma) cools and hardens.
16.identifies the epicenter of an earthquake. The location of an earthquake’s epicenter is found by plotting circles on a map from the records of three seismograph stations and finding the point where the three circles intersect.
19.caused by tension forces
20.where two plates come together and collide
21.Seismic waves can be measured and recorded by a _.
23.move out from the earthquake focus; strongest wave type; move through solid and liquid layers of Earth
24.move out from the earthquake focus; move only through solid rock; move at right angles
28.are places in Earth where the rocks break.
30.Magma that reaches Earth’s surface is known as
32.contains crust & top part of mantle
34.Natural, solid materials found on Earth that are the building blocks of rock; each has a certain chemical makeup and set of properties that determine their use and value.
36.What would change a metamorphic rock into a sedimentary rock?
39.forces that pull rocks apart
41.The theory of plate tectonics explains why and how large sections of Earth’s crust, called _ _, move.
42.Volcanic eruptions are _ in that they add new rock to existing land and form new islands.
44.Most volcanoes occur along plate boundaries; an area in the Pacific Ocean where volcanoes are common is called the
45.caused by compression forces
46.outermost layer; thinnest layer; solid rock
47.(minerals, ores, and fossil fuels) have properties that make them important and useful.
Down
1.Highflying aircraft and satellites high above Earth use sensors and cameras to gather information about Earth’s landforms and resources.
2.The _ of the earthquake is the point in the crust, or mantle, where energy is released.
3.explains how many Earth features form and why the plates move.
5.forces that cause rocks on either side of faults to push in opposite directions
6.The energy spreads outward in all directions as vibrations called
8.Forms from the compaction and/or cementation of rock pieces, mineral grains, or shell fragments
9.The vibration record, called a _, looks like jagged lines on paper.
10.where two plates slide past each other
11.Magma from the mantle rises to Earth’s surface and flows out an opening called a
13.These are maps that use symbols to portray the land as if viewed from above.
15.The landforms of Earth can be created or changed by volcanic eruptions and
17.At one time in geologic history the continents were joined together in one large landmass that was called
18.for example, the ability to burn, the reactivity to acids
22.The _ is the point on Earth’s surface directly above the focus; energy that reaches the surface is greatest at this point.
23.for example, hardness, luster, color, texture, the way a mineral splits, or density
25.where two plates are moving apart
26.The vent as well as the mountain that forms around it from cooled lava, ash, cinders, and rock is called a
27.top part of mantle
29.Minerals that are mined because they contain useful metals or nonmetals.
31.A hypothesis of _ was developed before the present theory of plate tectonics. It was based on continent shape, fossil evidence, rock, and climate clues.
33.caused by shearing forces
34.Forms when rocks are changed into different kinds of rocks by great heat and/or pressure – they are heated, squeezed, folded, or chemically changed by contact with hot fluids.
35.Volcanic eruptions can be _ when an eruption is explosive and changes the landscape of and around the volcano.
37.forces that push or squeeze rocks together
38.Form when P and S waves reach the surface
40.What process would change a sedimentary rock into an igneous rock?
43.innermost layer of Earth; most dense; mostly iron and nickel

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