Earth's Layers
How do the following layers order from center of the Earth to the surface: Crust, Inner Core, Mantle, Outer Core.
Inner Core, Outer Core, Mantle, Crust
What is the least accurate way to identify an unknown mineral?
Color
How do the three types of rocks form?
Igneous: Melting, cooling, and solidifying
Sedimentary: Deposition, compaction, and cementation
Metamorphic: High pressure and temperature
What types of plate boundaries have volcanoes?
Divergent and Convergent
What is the only rock type to contain fossils?
Sedimentary Rocks
What is the only liquid layer?
Outer Core
What is the most accurate way to identify an unknown mineral?
Hardness
Do intrusive or extrusive igneous rocks have large crystals from slow cooling?
Intrusive
How do volcanoes form away from plate boundaries?
Hot spots
What is the difference between relative and absolute dating?
Relative dating gives the sequence while absolute dating gives the exact time
What layer contains the tectonic plates?
Lithosphere
What mineral group is the most common and considered to be the most important?
Silicates
Do foliated or non-foliated metamorphic rocks have minerals lined up due to forming deep in the mantle under high pressure?
Foliated
What are the two types of magma and which one flows more easily (has a lower viscosity)?
Felsic & Mafic; Mafic has a low viscosity
What is the most common class of fossils?
Altered Hard
What layer contains convection currents?
Asthenosphere
How do minerals form?
Magma begins to rise and cool, and particles bond and clump together to form minerals.
Would waves dropping sand and pebbles onto a beach be an example of weathering, erosion, or deposition?
Deposition
What plate is pulled under at an oceanic-continental convergent boundary and why is it pulled under?
Oceanic plate; it is more dense
What principle says that a fault or intrusion that cuts through strata is younger than the strata it cuts through?
Principle of Cross-Cutting
How do temperature, pressure, and density change with depth in the Earth?
All 3 increase with depth
What are the 5 characteristics of minerals?
Naturally Occurring
Solid State
Definite Chemical Composition
Inorganic
Crystalline Structure
Would a mudslide flowing down a steep hill be an example of weathering, erosion, or deposition?
Erosion
What was the name for the supercontinent that existed 250 million years ago, and what were the 2 types of evidence for its existence?
Pangea: Geographic features & Fossils
If a sample starts with 200 grams of a radioactive isotope, how many half-lives does it take to get down to 25 grams.
3
200 -> 100; 100 -> 50; 50 -> 25