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Composition of Earth Flashcards | StudBud

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Composition of Earth

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Questions 8

Answers

1
Which of these statements best describes the density of Earth’s layers?
Density decreases from crust to core.
Density increases and then decreases from crust to core.
Density is greatest in the crust.
Density increases from crust to core.
2
The Earth in the diagram is divided into three layers based on which of the following?
chemical composition
relative density
geographical location
physical structure
3
How are scientists able to detect the different layers of Earth?
They use data collected from earthquake (seismic) waves.
They can dig and drill down to the core to retrieve samples.
miners collect data and transmit it to scientists
sensors in the Earth collect & transmit datato the surface
4
Which compositional layer of Earth is the thinnest?
the crust
the inner core
the mantle
the outer core
5
Scientists divide Earth into 5 layers based on what properties?
atmospheric properties
chemical properties
physical properties
core properties
6
What is the order of Earth's layers - starting from Earth’s surface and moving inward?
Atmosphere, crust, mantle
Core, mantle, crust
Core, mantle, crust
Crust, mantle, core
7
How does sedimentary rock most likely form?
sand & other materials are deposited and harden over time
heat and pressure creating separate layers of materials
magma slowly cooling and changing into solid rock
lava from volcanic eruptions cooling on Earth’s surface
8
Which letter represents the asthenosphere, the soft layer on which the tectonic plates move?
B
A
D
C