Alfred Wegener
Son of a clergyman and studied physics, meteorology and astronomy.
Who is Alfred Wegener?
Shaking of Earth's crust caused by the release of energy.
What is an earthquake?
What are body waves and surface waves?
The second layer of the Earth.
What is the mantle?
Three different types of plate tectonic boundaries.
What are divergent, convergent, and transform boundaries?
The theory that Alfred Wegener made.
What is the Theory of Continental Drift in 1912?
Earthquakes can be caused by.
What are eruptions if a volcano, landslides, impact of a meteor, and man-made explosions?
Higher frequency and arrives first.
What is body waves?
What is Uranium and Thorium?
The boundary that slips and slides.
Evidence of Wegener's Theory.
Breaks in Earth's crust along which movement has occurred.
What is the fault?
Lower frequency, does more damage, and arrived second.
What are surface waves?
The temperature of the core.
What are 7,952-10,800 degrees Fahrenheit?
The boundary collides and density does matter.
What is convergent boundary?
Another piece of evidence for Wegener's theory.
What are plants and animals fossils matched?
The point where an Earthquake starts underground.
What is the focus?
Two body waves.
Decay accounts for _____% of Earth's interior heat.
What is 50%
One plate tectonic boundaries create a rift valley.
What are divergent boundaries?
Wegener was correct that the continents move.
What is 2.5 cm per year?
Earthquakes produce what that caused by the sudden breaking of rocks within the Earth or from an explosion.
What are seismic waves?
Two surface waves.
What are love-waves and rayleigh-waves?
The other ____% comes from the cooling of the Earth's core by conduction & convection.
What is 50%?
What are continents to ocean, ocean to ocean, continent to continent?