The reason magma composition varies because of temperature
What is because crystalization depends on temperature
100
The difference between Conglomerate and Sandstone
What is because conglomerates have larger particles than sandstone
100
The reason marine organisms are a more likely source of oil than plants.
What is because these are more common in the ocean and have more matter overall
200
The two types of weathering
What is physical and chemical?
200
_____Magma has ~50% silicate
_____Magma has ~60% silicate
_____Magma has ~70% silicate
What is Basaltic, andesitic, granitic
200
This element is the most abundant in the Earth's crust because________
What is Oxygen
SiO4-2 has more Oxygen atoms than Silicon
200
The two processes that create sedimentary rocks
What are compaction and cementation
200
The reason coal is a fossil fuel
What is because it is formed from dead organisms
300
The size of sediments carried by
a) wind
b) water
c) ice
What is
A) smaller
B) smaller, larger if more turbulence
C) Everything
300
When are rock crystals larger
What is when the rocks have a gradual crystalization rate
300
NO MATH/NUMBERS ALLOWED: Many silicates have the chemical formula SiO4-2. Using the periodic table only, explain why the mass percentage of Oxygen is higher than silicon
What is because Oxygen's total mass is greater than Silicon's total mass
300
Weathering and how it leads to the formation of sedimentary rocks
What is the breakdown of rocks into smaller particles; What is producing the sediment that these are formed from
300
Coal can be classified as this type of rock
What is sedimentary
400
Materials volcanoes are made from
What is
cinder cone- ash and cinders
shield-solidified lava
stratovolcano-ash, lava, mud
400
Magma that is not viscous came from these rocks
What are rocks poor in silicate
400
A glassy black rock. Hint: it was used to make arrowheads
What is obsidian
400
A common cause of weathering is Carbonic Acid dripping into limestone caves. Explain how this would break down the rock.
What is because limestone has a higher PH, and H2CO3 has a lower PH, which will result in the acid dissolving the limestone.
400
the reason wood is considered a renewable resource but coal is not
What is because wood can regenerate quickly, while coal takes millions of years.
500
The reason that silicon and Oxygen are the most common elements in the Earth
What is because SiO4-2 is commonly contained in the mantle
500
Explain why there are an abundance of cinder cone volcanoes around the ring of fire.
Answers may vary
500
Explain why obsidian has a glasslike texture.
What kind of lave produces this rock?
What is because it cooled too fast for larger crystals to form
Low viscosity
500
Explain how Carbonic Acid forms and write the reaction
What is by H2O reacting with CO2
H2O + CO2 --> H2CO3
500
The reason natural gas is considered to be cleaner-burning than oil.
What is because oil releases more CO2 during combustion