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Science Review
Test Description: Primarily layers of the earth with additional cumulative review
Instructions: Answer all questions to get your test result.
1) Which type of crust is more dense?
A
All of the above
B
continental
C
They both have the same density.
D
oceanic
2) Why is the inner core a solid?
A
It does not have enough energy to become a liquid.
B
It is made of metal, and metal is always a solid.
C
The pressure from the earth's layers stops the inner core from being able to change shape.
D
It is not hot enough to become a liquid.
3) What is the thickest layer of the earth?
A
The mantle
B
The crust
C
The inner core
D
The outer core
4) What is the most dense layer of the earth?
A
The inner core
B
The outer core
C
The mantle
D
The crust
5) What is the hottest layer of the earth?
A
The inner core
B
The outer core
C
The crust
D
The mantle
6) What layer of the earth has convection currents?
A
The outer core
B
The inner core
C
The crust
D
The mantle
7) What state of matter is the mantle?
A
Solid, liquid, and a semi-solid
B
Gas
C
Liquid
D
Solid
8) What two layers of the earth make up the lithosphere?
A
The outer core and the inner core
B
The upper mantle and the lower mantle
C
The crust and the upper mantle
D
The lower mantle and the outer core
9) Which two layers of the earth are made mostly of iron and nickel?
A
The mantle and the inner core
B
The inner core and the outer core
C
The crust and the mantle
D
The crust and the outer core
10) What layer of the earth is the only completely liquid layer?
A
The crust
B
The outer core
C
The inner core
D
The mantle
11) Which best describes Earth’s crust?
A
It is stationary and unable to move.
B
It is located between the outer and the inner core.
C
It is composed of continental and oceanic plates.
D
It is thicker than the mantle and the core.
12) What happens to the temperature and density as you move from the crust to the inner core?
A
The temperature and the density decrease.
B
The temperature decreases and the density increase.
C
The temperature and the density increase.
D
The temperature increases and the density decrease.
13) Earth’s crust is believed to be ____________________and ________________than Earth’s inner core:
A
lighter, hotter
B
lighter, cooler
C
heavier, hotter
D
heavier, cooler
14) Which of the following statements is true?
A
The mantle is the thickest and hottest layer
B
The mantle is the only liquid layer and has convection currents
C
The mantle is the thickest layer and has convection currents
D
The mantle is the hottest layer and has convection currents
15) 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 semi-liquid rock outer region surrounding a liquid core
C
It contains a basalt, semi-liquid outer region surrounding a solid core.
D
It contains a liquid outer region surrounding a solid iron core.
*select an answer for all questions
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