Inside The Earth Question Preview (ID: 49572)


14.1. TEACHERS: click here for quick copy question ID numbers.

What is the outermost layer of the Earth called?.
a) core
b) lithosphere
c) asthenosphere
d) mesosphere

What is the liquid layer of the Earth’s core called?
a) lithosphere
b) mesosphere
c) inner core
d) outer core

The mantle is denser than the crust because it contains more
a) iron
b) magnesium
c) silicon
d) oxygen

The core consists mainly of
a) iron
b) magnesium
c) silicon
d) oxygen

Seismic waves travel through Earth’s layers at different speeds depending on the
a) density
b) mass
c) area
d) shape

Which of the following compositional layers makes up the greatest percentage of Earth’s mass?
a) continental crust
b) oceanic crust
c) the mantle
d) the core

What are large pieces of lithosphere that move on top of the asthenosphere called?
a) mantle pieces
b) crust plates
c) tectonic plates
d) puzzle pieces

How are tectonic plates like ice cubes in a bowl of punch?
a) they sink and disappear
b) they melt and become liquid
c) they move and run into each other
d) they freeze

What causes seismic waves?
a) winds
b) earthquakes
c) magnetic reversal
d) rain

What can scientists find out about the Earth with a seismograph?
a) age
b) atmosphere
c) temperature
d) density and thickness

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