Earth's Layers Question Preview (ID: 60276)


Layers Of The Earth Tectonic Plates. TEACHERS: click here for quick copy question ID numbers.

Which layer of the Earth is the thinnest?
a) Crust
b) Mantle
c) Outer Core
d) Inner Core

Which layer of the Earth is the hottest?
a) Crust
b) Mantle
c) Outer Core
d) Inner Core

Which layer of the Earth is the densest?
a) Crust
b) Mantle
c) Outer Core
d) Inner Core

Which layer of Earth has the most mass (about 67%)
a) Crust
b) Mantle
c) Outer Core
d) Inner Core

Which layer is made of the crust AND the upper part of the mantle and are where the plates are found?
a) Lithosphere
b) Asthenosphere
c) Mesosphere
d) Thermosphere

Which layer is composed of liquid iron and nickel?
a) crust
b) mantle
c) outer core
d) inner core

Which layer do the tectonic plates float on?
a) lithosphere
b) asthenosphere
c) mesosphere
d) outer core

Which layer is made of solid iron and nickel?
a) crust
b) mantle
c) outer core
d) inner core

What was the name of the supercontinent that existed millions of years ago when all the continents were joined?
a) Pangaea
b) Eurasia
c) Panthalassa
d) Pangeeuh

Where is the newest ocean crust located?
a) the middle of the ocean at the mid-ocean ridge
b) near the edges of continents at the coastline
c) at the top and bottom of Earth near the poles
d) in the Pacific Ocean near the Mariana Trench

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