Review Chapter 3 – Earth’s Structure Name: _______________________________ Period: _______ Label Figure 1with A, B, etc..by selecting from the list below. _______ _______ Mantle Mesosphere Core Lithosphere Crust Asthenosphere _______ _______ _______ _______ Figure 1 What changes occur with depth into the Earth? ________________________________________________________________________________________________________________________________________________ What metals are present in the Core? __________________________________________________________________________________________________________________________________________________ In the outer, liquid layer of the Core circulation of this metal believed to create Earth’s magnetic field (circle the correct answer). A. Iron B. Nickel C. magma D. Silicate The outer Core remains liquid due to the (circle the correct answer). A. temperature B. corn starch C. pressure D. water content

The asthenosphere moves because of heat transfer by ___________________________ that sets up currents. Describe the asthenosphere’s physical properties: ______________________________________________________________________________________________________________________________________________________ Describe the mesosphere physical properties: _________________________________________________________________________________________________________________________________________________________________________________________________________________________________ What metal is abundant in the Crust? ___________________________________ Silicates are abundant in the Crust and are compounds made up of silicon, _______________, and another element. Which layer makes up 82% of the Earth’s volume? (circle the correct answer): A. crust B. mantle C. core D. lithosphere Describe the lithosphere, what layers of the Earth does it contain? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________ How does Oceanic Crust differ from Continental Crust? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________ From which layer of the Earth does the “magma” that feeds volcanoes come? (circle the correct answer): A. asthenosphere B. mantle C. core D. lithosphere The study of earthquakes and seismic waves that move through and around the earth is called __________________________________.

What type of seismic wave is shown below When a wave passes from one media into another encountering a change in density and is bent (changes direction). This property is called: __________________________________________________________________________ A person who travels to exotic places and blows things up while researching P & S waves is called? ___________________________________________________________________________ The energy released by an earthquake is sensed and recorded by this instrument _____________________________________________________________________

What is happening to the S waves shown below and what does this tell us about the outer layer of the Earth’s core? _________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Core The “Moho” is the chemical boundary between which 2 layers of the Earth? ______________________________________________________________________________________________________________________________________________________ What was the significant outcome of the Molehole Project? ___________________________________________________________________________ A shadow zone that occurs during an eatthquake is a region on the Earth’s surface where (circle the correct answer): A. light is not detected B. only P waves are detected C. only S waves are detected D. no seismic waves are detected.