Rock Cycle
Tiny pieces of rock, ranging in size from clay particles to boulders.
What is sediment?
The formula for calculating density.
What is D = m/V?
What is density equals mass divided by volume?
This principle states that in an undisturbed sequence of rock layers, the youngest layer is on top and the oldest is on the bottom.
What is the Law of Superposition?
This scientist proposed the theory of continental drift and the existence of Pangaea.
Who is Alfred Wegener?
The incomplete theory about how Earth's land masses were once connected into the super-continent of Pangaea.
What is Continental Drift?
Molten rock found on the surface of Earth's crust.
What is lava?
cubic centimeters cm3
cubic meters m3
grams per milliliter g/mL
What are the metric units for density?
This process occurs when rocks break due to tectonic forces.
What is faulting?
Wegener had a lot of evidence to support his idea of continents drifting over time, but he lacked this...which prevented him from gaining the support of other scientists during his lifetime.
What is a mechanism for how the continents moved?What is an understanding of convection currents in the mantle?
The modern theory that describes the movement of the Earth's lithosphere and explains the formation of continents, mountains, and ocean basins.
What is plate tectonics?
Type of rock formed from lava.
What is extrusive igneous?
This layer's density is the lowest, which allows it to float on the denser mantle.
What is the Earth's crust?
Magma that solidifies below the Earth's surface in the cracks of older rocks is an example of this geological process.
What are intrusions?
The Danish seismologist who discovered the Earth's inner core.
Who is Inge Lehmann?
The type of plate boundary where two plates move away from each other.
What is a divergent plate boundary?
Type of rock formed from sediments.
What is sedimentary rock?
This layer of the Earth has the highest density.
What is the inner core?
The bending of rock layers due to tectonic forces.
What is folding?
This pioneering paleontologist and fossil collector made significant discoveries of marine reptiles and other fossils, providing evidence of extinction events.
Who is Mary Anning?
This geological feature is formed at a divergent plate boundary where new crust is created (often under water).
What is a mid-ocean ridge?
Limestone (sedimentary) becomes marble (metamorphic) from this geologic process deep underground.
You have a stone that has a mass of 200g and a volume of 100 cm3. This is its density.
What is 2g/cm3
This principle states that the same geological processes we see today have been at work throughout Earth's history.
What is uniformitarianism?
I'm a pet rock made from vesicular basalt, a type of extrusive igneous rock that has lots of bubbles.
Who is Ignacio?
The type of plate boundary where two plates slide past each other horizontally.
What is a transform plate boundary?