Quiz Review A
The layer of the Earth of all living things.
What is the biosphere?
Hydrosphere
What is the water layer of the earth
The layer of gases around the entire earth.
What is the atmosphere?
A number of rigid, but moving, pieces of Earth's surface
What are (tectonic) plates.
Rigid outer part of the earth, consisting of the crust and upper mantle.
What is the lithosphere?
Evidence of matching animal fossils from these two separate continents: _____________________ and _____________________
What is Africa and South America?
A tectonic boundary where two plates are moving away from each other.
What is a divergent boundary?
Molten or semifluid rock erupted from a volcano or fissure (above ground), or solid rock resulting from cooling of this.
What is lava?
The theory that all continents are fragments of Pangaea now drifting apart
What is the Continental Drift Theory
Pangaea existed this many millions of years ago.
What is about 250 million years?
Molten rock below or within the earth's crust.
What is MAGMA?
The sideways and downward movement of the edge of a plate of the earth's crust into the mantle BENEATH another plate.
What is subduction?
A geologic process (very slow) where tectonic plates move outward and away from each other allowing for the creation of new oceanic lithosphere.
What is seafloor spreading?
When two plates slip past each other moving in opposite directions, usually causing an earthquake.
What is a TRANSFORM plate boundary?
A path along and around the Pacific Ocean characterized by many active volcanoes and frequent earthquakes.
What is the Ring of Fire?
Scientist who studies what the Earth is made of and how it was formed.
What is a GEOLOGIST?
The theory that all the large land masses of earth are fragments of Pangaea now drifting apart.
What is the Continental Drift theory?
Movement in fluids when heated material rises and cooler more dense materials sink.
What are convection currents?
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved
_________________ are a result from the build up of stress at a plate boundary.
What are earthquakes?
An undersea mountain chain where new ocean floor is created OR A long narrow ditch on the ocean floor created at a subduction zone.
What is a MID-OCEAN RIDGE? or What is an OCEAN TRENCH?