Rock Cycle
What are the 3 types of rocks ?
Igneous, Metamorphic, and Sedimentary
Matter that has been deposited by some natural process.
What is sediment?
A large, tall, rocky area of land that comes up out of the Earth's surface.
What is a mountain?
What evidences are used to support the idea of a multiple billions of years old Earth?
What is Continental drift?
What type of rock is limestone?
Sedimentary Rock
The remains of a plant or animal from a past geological age?
What is fossil?
A mound of raised land that us smaller than a mountain. Usually formed when mountains wear away.
What is a hill?
What is the approximate age of the Earth?
What is 4.6 billion years?
Rocks made from cooled magma
Igneous rock
The process of wearing or grinding something down
What is erosion?
A large crack in the Earth formed by a river or earthquakes.
What is a canyon?
What is the difference between relative age and absolute age?
What is Relative age is not an exact age but like an estimate and absolute age is the exact age
What are the main processes of the rock cycle?
Crystallization, Erosion and Sedimentation, and Metamorphism
Rock formed by the solidification of molten magma
What is igneous rock?
A large low area of flat land that is often grassy. (Also a homophone!)
What is a Plain?
The principle that in undisturbed rock layers the oldest rocks are on the bottom.
What is Law of Superposition?
This is how rocks on the surface get pushed into the Earth's core.
Started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
What is metamorphic rock?
A large area of flat land that is raised higher than the land around it. Can be an elevated plain.
What is a Plateau?
The time is takes for half a radioactive element's atoms to decay is
What is a Half-life