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Earth Structure Quiz **NEW**

"Earth Structure" Module

Visionlearning - an interactive practice exercise.

(1) The Moho is the boundary between

(a) the lithosphere and the aesthenosphere

(b) the inner core and the outer core.

(c) the crust and the mantle.

(d) the mantle and the core.

(2) Earthquakes are useful for studying the earth's interior because

(a) each earthquake produces an array of seismic waves.

(b) earthquakes are extremely destructive.

(c) they happen below the surface of the earth.

(d) they release stress that has been stored.

(3) Both S-waves and P-waves can travel easily through liquids.

(a) true

(b) false

(4) Although we don't have any samples of the core, most scientists agree that the main constituent of the core is

(a) basalt.

(b) granite.

(c) iron.

(d) peridotite.

(5) When seismic waves cross a boundary into a different material, they might

(a) reflect

(b) refract.

(c) change velocity.

(d) all of the choices

(6) What does the S-wave shadow zone indicate about the interior of the earth?

(a) The core is made of iron.

(b) The mantle is denser than the crust.

(c) The mantle is liquid.

(d) The outer core is liquid.

(7) Tectonic plates consist of the lithosphere, or the crust, and the uppermost mantle.

(a) true

(b) false

(8) How do we know that the earth is not the same composition all the way through?

(a) Seismic waves do not arrive uniformly all over the earth.

(b) There are two types of seismic waves, S- and P-waves.

(c) Where the mantle is exposed, it looks very different.

(d) Seismic waves attenuate with distance.

(9) Continental crust is ________________ than oceanic crust.

(a) thicker and less dense

(b) thicker and more dense

(c) thinner and less dense

(d) thinner and more dense

(10) The crust and mantle are defined on the basis of differences in

(a) composition.

(b) mechanical properties.

(c) the way they are formed.

(d) where they are formed.

(11) The lithosphere and aesthenosphere are defined on the basis of differences in

(a) composition.

(b) mechanical properties.

(c) the way they are formed.

(d) where they are formed.


External Resources

The Earth: A Very Short Introduction (Very Short Introductions)

Naked Earth: The New Geophysics

Other Recommended Products

Visionlearning Resources

Glossary

Quotes

Descend into the crater of Yocul of Sneffels, which the shade of Scartaris caresses, before the kalends of July, audacious traveler, and you will reach the center of the earth. I did it.

Jules Verne,
1828 - 1905



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