Plate Tectonics
What is the source of energy that drives Earth's Plate Tectonics?
What is heat from the Core, or Molten Layers
When transform boundaries build up pressure that suddenly releases what happens?
An Earthquake
What are the THREE Compositional Layers of the Earth?
Crust, Mantle, Core
What does the Law of Superposition state?
Younger on Top, Old on the Bottom
What is the difference between a theory and a law?
Laws describe what happens
Theories Explain How it Happens
What type of plate Boundary occurs when two plates slide past one another?
Transform Boundary
What type of waves carry the energy of an Earthquake?
Seismic Waves
Describe the Crust of the Earth
3 Things
Thin, Solid, Outermost
What do scientist measure in rocks to determine their ABSOLUTE AGE?
Radioactive Material
Why was Alfred Wegner's original theory not accepted at first?
He lacked Evidence
At what type of boundary does seafloor spreading occur?
Divergent Boundary
Which type of boundary is typically responsible for volcanoes?
Convergent Boudaries
Which PHYSICAL Layer makes up the tectonic plates?
List 2 pieces of evidence that the continents were once closer together.
Fossils, Fit Together, Mountains
Joe says turtles lay eggs on land because they would drown in the ocean. Why is this not scientific what does it lack?
Evidence
What plate tectonic event leads to many volcanoes such as near the Andes Mountains?
A Subduction Zone
What type of heat transfer takes place in the mantle to move the plates?
Convection
Describe the Lithosphere
3 Things
Cooler, Rigid, Breakable
What attribute of mountains tells me if they are young or old?
Rounded or Pointed Peaks
EXPLANATIONS backed by evidence in science are called?
Which type of boundary and types of crust formed the Himalayan Mountains?
Continental Convergent Boundary
If students wanted to study igneous rock what type of boundary should they examine?
Divergent
What three things increase as you approach the core of the Earth?
Heat, Density, Pressure
We have found fossils of the same species of lizard in multiple continents why?
They were once closer together.
In the scientific process we first develop hypothesis from our observations, what must happen for these to become theories?
Supported by many scientists and evidence.