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What is the hardest mineral represented on the Moh's Hardness Scale?
Diamond
Where is the oldest rock layer?
at the bottom
How does a sedimentary rock become metamorphic?
Heat and Pressure
What are 3 types of rocks?
Sedimentary, metamorphic, igneous
What is the softest mineral represented on the Moh's Hardness scale?
Talc
What happens that changes metamorphic rock into sediment?
Weathering
Igneous rock
What do we call the process that changes one rock into another rock?
the Rock cycle
True or false: If a mineral has a hardness of 6, it can be easily scratched with a fingernail.
false
In a transition to a metamorphic state, what happens?
The rock is under extreme amounts of heat and pressure
What type of rock would most likely have very small grains of sand in squished layers?
Sedimentary
What happens to turn sediment into sedimentary rock?
Compaction and cementation
What type of rock may would have bands of minerals running through it like ribbons?
Metamorphic
An igneous rock has large crystals that have formed in it. Is it an intrusive rock or an extrusive rock?
Intrusive
How can sedimentary rock become an igneous rock?
if it is melted and then cools and hardens
Many pieces of rock settled to the bottom of a valley long ago. What type of rock will be found there that is created from those little pieces of rock?
Sedimentary
What term is used to describe how shiny a mineral is? (ie metallic, glassy, waxy)
luster
What does it mean for rock to be "extrusive"?
It has cooled and hardened slowly on Earth's surface
What is the term that describes the process of water, wind and ice breaking down rock?
weathering
What term describes the movement of small pieces of rock from one location to another?
deposition