Earth's Layers
The outer PHYSICAL layer of earth
What is the Lithosphere?
These "floating" layers of the Earth's lithosphere can be thought of piece of an eggshell covering Earth
What are tectonic plates?
When rock is under tremendous pressure?stress it can change shape
What is deformation?
Liquid rock under the Earth's surface
What is magma?
The movement of earth suddenly, releasing enormous amounts of energy
What is an earthquake?
This Indonesian island suffered a devastating volcanic eruption heard all over the world
What is Krakatoa?
The inner and outer make up this
What is the core?
When two plates collide
What is a convergent boundary?
When rock layers bend under stress
What is folding?
Any place where ash, gas, or melted rock come out of the ground
What is a volcano?
The point underground where the first movements of rock occur during an earthquake
What is the focus?
The year of the major volcanic eruption in the Indonesian region and the number of eruptions
What is 1883 and what is 4 eruptions?
This PHYSICAL layer is the second one in line
What is the Asthenosphere?
When two plates move away from each other
What is a divergent boundary?
A type of stress that pushes rock together
What is compression?
When melted rock is up on the Earth's surface
What is lava?
The point above ground where the origin of earth movement occurs
What is the epicenter?
The name of Hawaii's major volcano, erupting for the past 30+ years
What is Kilauea?
This layer is clearly in the mantle and closest to the core
What is the mesosphere?
When two plates simply move past each other
What is a transform boundary?
A stress type where the rock is stretched or pulled apart
What is tension?
The actual opening of a volcano
What is a vent?
When rock returns to its original shape
What is elastic rebound?
The year we first LANDED on the moon surface
What is 1969?
This is when movement of matter (rock) occurs due to differences in density and temperature.
What is convection?
About 245 million years ago, the continents were all connected to form this one landmass
What is Pangaea?
A crack where large bodies of rock move past each other
What is a fault?
A place where hot magma rises up a column through the asthenosphere
What is a hot spot?
This is the faster wave type and is underground and is always the first to be detected by scientific instruments
What is a P-wave?
The names of the 3 astronauts who manned the first flight to the moon's surface landing
Who are Michael Collins, Buzz Aldrin & Neil Armstrong?