Science Test For Thrus. 10-30-14 Flashcards
(26 cards)
Basin
A small, low area on Earth shaped like a bowl.
Asthenosphere
A zone of rock in the upper mantle that can flow.
Basin and Range
An area of parallel ridges with narrow valleys between.
Eruption
The release of lava or ash from a volcano.
Volcano
A mountain formed by molten rock that is pushed to Earth’s surface and builds up.
Tsunami
A very large ocean wave caused by an underwater earthquake or volcanic eruption.
Terrane
A small piece of lithosphere from one plate that is attached to another plate.
S wave (secondary)
The second wave to arrive at a station after an earthquake.
Richter scale
Scale that provides estimates of earthquake magnitude.
P wave (primary)
The first wave to arrive at a station after an earthquake.
Plate tectonics
The theory that Earth’s crust divided into plates that are always moving.
Mantle
The thick layer of Earth beneath the crust.
Magnitude
A measure of the energy released by an earthquake.
Magma
Molten rock beneath Earth’s surface.
Lithosphere
The cool, solid portion of Earth the includes all of the crust and part of the upper mantle.
Lava
Molten rock that is exposed at Earth’s surface.
Fossil
The remains or signs of past life.
Focus
The place inside Earth where rock moves and an earthquake occurs.
Fault
A break in Earth’s crust where rock on one side moves in relation to rock on the other side.
Epicenter
The spot on Earth’s surface above the focus of an earthquake.
Earthquake
A shaking of Earth’s crust, caused by the release of energy at a fault.
Crust
The thin, outermost layer of Earth, which includes both dry land and the ocean floor.
Core
The layer of Earth that extends from Earth’s center to the bottom of the mantle.
Core
The layer of Earth that extends from Earth’s center to the bottom of the mantle.
