Science Review: Question Preview (ID: 22808)


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Which type of crust is more dense?
a) oceanic b) continental c) They both have the same density. d) All of the above
Why is the inner core a solid?
a) It is not hot enough to become a liquid. b) It does not have enough energy to become a liquid. c) The pressure from the earth's layers stops the inner core from being able to change shape. d) It is made of metal, and metal is always a solid.
What is the thickest layer of the earth?
a) The crust b) The mantle c) The outer core d) The inner core
What is the most dense layer of the earth?
a) The crust b) The mantle c) The outer core d) The inner core
What is the hottest layer of the earth?
a) The crust b) The mantle c) The outer core d) The inner core
What layer of the earth has convection currents?
a) The crust b) The mantle c) The outer core d) The inner core
What state of matter is the mantle?
a) Solid b) Liquid c) Gas d) Solid, liquid, and a semi-solid
What two layers of the earth make up the lithosphere?
a) The crust and the upper mantle b) The upper mantle and the lower mantle c) The lower mantle and the outer core d) The outer core and the inner core
Which two layers of the earth are made mostly of iron and nickel?
a) The crust and the mantle b) The crust and the outer core c) The mantle and the inner core d) The inner core and the outer core
What layer of the earth is the only completely liquid layer?
a) The crust b) The mantle c) The outer core d) The inner core
Which best describes Earth’s crust?
a) It is stationary and unable to move. b) It is thicker than the mantle and the core. c) It is located between the outer and the inner core. d) It is composed of continental and oceanic plates.
What happens to the temperature and density as you move from the crust to the inner core?
a) The temperature decreases and the density increase. b) The temperature and the density decrease. c) The temperature and the density increase. d) The temperature increases and the density decrease.
Earth’s crust is believed to be ____________________and ________________than Earth’s inner core:
a) lighter, cooler b) lighter, hotter c) heavier, hotter d) heavier, cooler
Which of the following statements is true?
a) The mantle is the thickest and hottest layer b) The mantle is the thickest layer and has convection currents c) The mantle is the hottest layer and has convection currents d) The mantle is the only liquid layer and has convection currents
Which best summarizes the composition of Earth’s core?
a) It contains a solid outer region surrounding a liquid iron core. b) It contains a liquid outer region surrounding a solid iron core. c) It contains a semi-liquid rock outer region surrounding a liquid core d) It contains a basalt, semi-liquid outer region surrounding a solid core.
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