Science Rocks!
What are Sedimentary Rocks?
Rocks made of sediments.
What is another name for the Earth's crust and part of the upper mantle?
lithosphere
What causes earthquakes? (Don't say "breaking rocks".
The collision of plates or sliding of faults
The science of determining the order of past events, without necessarily determining their absolute age.
Relative dating
The solid core is made up of what two main elements?
Iron and Nickel
Erosion and weathering is what?
What are two ways that sediments are formed?
The theory that continents were once connected and are continuously moving is called?
Theory of Continental Drift
The place above the focus where the fault begins to rapture and break.
Epicenter
What are the remains or traces of animals, plants, and other organisms in petrified, casts, or molds.
Fossils.
Convergent boundaries make what kind of land form?
Mountain
What kind of rocks are formed from the cooling of volcanic magma?
igneous rocks
The current of hot, molten rock underneath the crust that helps move the continents.
Convection
DOUBLE JEOPARDY: What is the machine that tracks earthquake activity?
Seismograph or seismometer.
What is the Law of superposition?
The depth of the rocks is relative to the age of the rocks. (Older rocks on the bottom; newer rocks on the top.)
When two plates collide together is called a ___________ boundary?
Convergent
Metamorphic rocks are formed by?
Heat and pressure
A Divergent Boundary is what?
Where plates move away from each (most of the time forming ocean ridges)
Earthquakes release energy from its epicenter. What is the scale that is used to measure the magnitude of earthquakes?
Richter Scale
Which radioactive element is used to age rocks? (Name one.)
Uranium, Potassium, Rubidium.
Small cracks around the crust of the Earth are called.
Faults
Limestone is a rock found underneath Florida soil made up of the remain of animals and shells. Under the right heat and pressure, Limestone turns into marble. What kind of rock is limestone?
Sedimentary.
What is it called when one plate slips on top or underneath another?
Subduction
What is the faster moving waves that move up and down from an earthquake?
Primary waves (P waves)
What is dating based on the amount of carbon in the element that is being tested?
Radiocarbon dating.
DOUBLE JEOPARDY: The time it takes for half of the atoms of the parent isotope to decay into the daughter isotope.
half-life