Earth Science Praxis Exam: Earth Unit > The Solid Earth - Chapter 5: Composition of the Earth > Flashcards
The continental crust is made mostly of ____rocks
felsic
What is the name of the deep sea-drilling ship that made recovery of ocean floor samples possible
Glomar Challenger
____ rocks are thought to make up the mantle and provide the lava for oceanic eruptions
Ultramafic
The concept of a molten iron outer core is further supported by the existence of the earth’s ________
magnetic field
Iron is ___ times more dense than crustal rocks
3