Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 74E
Is Earth's interior mostly magma? Explain.
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How does physics apply to these geological processes (volcanic eruptions, mountain formation, deposition)? Please explain.
The average density of Earth is about 5.5 g/ cm? Considering that the densities of the surface rocks are much less than the average, what does this suggest about the density of Earth's interior?
Earth's mass ia 6x10^24 kg and its radius is 6.4x10^6 m.
What is the average mass density of Earth?
The density of the rocks compromising Earth's outermost layer (its "crust") ranges from 2000 to 3500 kg/m ^3.
Based on your answer, what can you conclude about the material deep inside Earth's interior?
Chapter 20 Solutions
Conceptual Physical Science (6th Edition)
Ch. 20 - How did density segregation contribute to Earth's...Ch. 20 - What three sources of heat contributed to the...Ch. 20 - What is the most abundant element for Earth as a...Ch. 20 - Prob. 4RCQCh. 20 - What is a mineral?Ch. 20 - What does inorganic in the definition of mineral?Ch. 20 - What physical properties are used to identify...Ch. 20 - Most mineral samples do not display their crystal...Ch. 20 - What is a polymorph?Ch. 20 - What is the difference between a silicate mineral...
Ch. 20 - Silicate minerals are subdivided into...Ch. 20 - What is the most abundant mineral in Earth's...Ch. 20 - Prob. 13RCQCh. 20 - What are two sources from which minerals...Ch. 20 - As minerals crystallize in cooling magma, which...Ch. 20 - When water evaporates from a body of water, what...Ch. 20 - Name the three major types of rocks and describe...Ch. 20 - What are the most common igneous rocks, and where...Ch. 20 - What is meant by partial melting?Ch. 20 - With respect to the silica content of the parent...Ch. 20 - What is the primary determining factor for a...Ch. 20 - In Earths interior, does temperature or decrease...Ch. 20 - Prob. 23RCQCh. 20 - What is a clastic sedimentary rock?Ch. 20 - What are the three most common clastic sedimentary...Ch. 20 - What is the most abundant carbonate rock?Ch. 20 - How are most carbonate rocks formed?Ch. 20 - What is metamorphism? What causes it?Ch. 20 - Distinguish between foliated and nonfoliated...Ch. 20 - In contact metamorphism, water-rich, low-melting...Ch. 20 - Gold has a density of 19.3 g/cm3. A 5-gal pail of...Ch. 20 - Prob. 37TASCh. 20 - Other than location, what is the primary...Ch. 20 - What do we call minerals that have the same...Ch. 20 - The factors that influence bond strength influence...Ch. 20 - Why is color not always the best way to identify a...Ch. 20 - While you are hiking in the wilderness, you find a...Ch. 20 - What makes gold so soft (easily scratched) while...Ch. 20 - Imagine that we have a liquid with a density of...Ch. 20 - Is cleavage the same thing as crystal form? Why or...Ch. 20 - For identifying metallic minerals, why is streak...Ch. 20 - How are minerals classified?Ch. 20 - Silicon is essential for the computer industry in...Ch. 20 - What two minerals make up most of the sand in the...Ch. 20 - What two mineral groups provide most of the ore...Ch. 20 - How are ferromagnesian silicates different from...Ch. 20 - What is an ore?Ch. 20 - If a rock contains mineral A (30% silica) and...Ch. 20 - If a rock contains mineral A (30% silica) and...Ch. 20 - If a magma contains molten forms of mineral A (30%...Ch. 20 - If a magma contains molten forms of mineral A (30%...Ch. 20 - If high-silica minerals are the last to...Ch. 20 - Which of these is a true statement about silicate...Ch. 20 - If a magma contains molten forms of quartz and...Ch. 20 - Are high-silica content minerals "easier" to melt...Ch. 20 - Prob. 71ECh. 20 - If a rock contains both quartz and pyroxene (a...Ch. 20 - Why is halite commonly the last mineral to...Ch. 20 - Is Earth's interior mostly magma? Explain.Ch. 20 - In which parts of Earth's crust (oceanic and/or...Ch. 20 - Are the Hawaiian Islands made up primarily of...Ch. 20 - Why does magma composition change as it cools?Ch. 20 - Is it possible for crystallization to enrich magma...Ch. 20 - Where does most magma originate?Ch. 20 - Prob. 80ECh. 20 - Prob. 81ECh. 20 - How do chemical sediments produce rock? Name two...Ch. 20 - Relate the shape and sorting of sand particles to...Ch. 20 - What general rock feature does a geologist look...Ch. 20 - What feature of clastic sedimentary rock enables...Ch. 20 - Prob. 86ECh. 20 - In what two ways does sediment turn into...Ch. 20 - In a conglomerate rock, why are pebbles of granite...Ch. 20 - Cite two examples of sedimentary rocks that...Ch. 20 - Prob. 90ECh. 20 - Prob. 91ECh. 20 - Can metamorphic rocks exist on an island of purely...Ch. 20 - What patterns of alteration are characteristic of...Ch. 20 - What are the two processes by which rock is...Ch. 20 - What properties of slate make it good roofing...Ch. 20 - Name two mica minerals that can give a metamorphic...Ch. 20 - How is foliation different from sedimentary...Ch. 20 - Why do we find folded and fractured rock layers in...Ch. 20 - What feature helps distinguish schist and gneiss...Ch. 20 - How does gneiss differ from granite?Ch. 20 - Why is schist so easily recognized?Ch. 20 - Which type(s) of rock is (are) made from...Ch. 20 - Which type(s) of rock is (are) made from...Ch. 20 - What is the difference between the minerals that...Ch. 20 - If the volcanic glass obsidian is not considered a...Ch. 20 - We have learned that silica content is a key...Ch. 20 - Which type of rock is most sought by petroleum...Ch. 20 - Prob. 107DQCh. 20 - The silicates are the largest mineral group...Ch. 20 - Compaction and cementation of sediments leads to...Ch. 20 - Why are silicon and oxygen concentrated near...Ch. 20 - Which minerals crystallize first from cooling...Ch. 20 - Prob. 5RATCh. 20 - In a sedimentary rock, the degree of particle...Ch. 20 - The characteristics of regional metamorphism...Ch. 20 - Prob. 8RATCh. 20 - What most strongly influences a minerals hardness?...Ch. 20 - Prob. 10RAT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What are the four regions of the Earths interior?arrow_forwardApproximately what percentage of Earth’s radius is represented by the crust?arrow_forwardThe Moho boundary separates which two layers of Earths interior? (21.1) (a) oceanic and continental crust (b) upper and lower mantle (c) inner and outer core (d) crust and lithospherearrow_forward
- Do you agree with the statement: The Earth is expanding, and the seafloor is created but never destroyed.? Explain.arrow_forwardHEIGHT OF A CONTINENT ABOVE THE MANTLE. In the figure below, a simple model considers a continent as a block (density = 2,800 kg/m^3) floating in the mantle (density = 3,300 kg/m3). Assuming the continent is 35 km thick (the average thickness of the Earth's crust), estimate the height (in km) of the continent above the surrounding mantle. Continent (density = 2800 kg/m3) mg Mantle rock (density = 3300 kg/m³) 5.3. 7.4. 9.8 12. 17.arrow_forward1) Distinguish between the mantle and the inner core. 2) Explain in your own words how the Earth's layers were formed. 3) Explain what cause the mantle to "flow"? 4) What are the two main metals that make up the outer and inner core?arrow_forward
- Suppose a team of scientists is studying the formation of an island chain generated by four extinct volcanoes. To determine when each volcano became extinct, the scientists calculated the age of the youngest layer of igneous rocks on each island. After a recent research trip, the identifying tag of a sample rock was lost. The scientists ask you to help identify the sample rock's parent volcano. The scientists give you some information. 1) The initial ratio of strontium-87 to strontium-86 in the rock was 0.7129. 2) The decay constant, 1, for rubidium-87 is 1.42 x 10-1!. 3) The current isotope concentrations in the rock are 8" Sr = 126 ppm, 8'Rb = 218 ppm, and 8ºSr = 175 ppm. %3D Use the isochron equation to calculate the approximate age of the mystery rock. 87. Sto + 87 Sr [edr – 1] 86 Sr, 86 86 Where possible, retain at least four significant figures throughout your calculations, and round your final answer to the nearest 100 million years. million years t =arrow_forward13. How deep in the crust is 10 kbar? Lithostatic pressure within the crusts results from the weight of the rocks above. Assume an average density of 2750 kg/m3. Use the equation P=p*g*h or P/(p *g)=h 23kPa/m P=pressure (e.g. kbar), p=density, g-gravity 9.8 m/s2, h= depth (m), 1 kbar=1,000 bars, 1 bar=100,000 Pa, 1 Pa=kg/(m*s2), 1 kbar =100,000,000 Pa, 1 km =1000 m. Give your answer in kilometers.arrow_forwardDescribe the planet that has volcano in it.arrow_forward
- M7arrow_forwardA strong R = 6.2 magnitude earthquake struck off a group of islands, where R is the Richter number. Its intensity is of the form I=aR. Find a. (Enter an exact number.)arrow_forwardThe inner core of the Earth is solid. The liquid outer core is at a cooler temperature and yet is is a liquid. This is because A the increased pressure in the inner core has raised the melting point B it is composed of iron and nickel C the outer core acts as an insulating layer aound the inner corearrow_forward
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