Science Vocab 2

BD- a force that acts on rock to change its shape or volume.

MD- a force changing the rock

BD- Stress that stretches rock so that it becomes thinner in the middle.

MD- Stress thats extends the rock

BD- Stress that squeezes rock until it folds or breaks.

MD- Stress squeezing the rock

BD- Stress that pushes masses of rock in opposite directions, in a sideways movement.

MD- Stress pushing in opposite directions

BD- A type of fault where the hanging wall slides downward; caused by tension in the crust.

MD- Fault causing hanging wall slide down

BD-The block of rock that forms the upper half of a fault.

MD-upper half of fault

BD-The block of rock that forms the lower half of a fault.

MD-Lower half of fault

BD-A type of fault where the hanging wall slides upward; caused by compression in the crust.

MD-Hanging wall slides upward

BD-A type of fault in which rocks on either side move past each other sideways with little up or down motion.

MD-Fault causing rocks to slide past

BD-An upward fold in rock formed by compression of Earth’s crust.

MD- An upward fold

BD-A downward fold in rock formed by compression in Earth’s crust.

MD- A downward fold

BD-A large area of flat land elevated high above sea level.

MD-Flat land above sea level

BD-The shaking that results from the movement of rock beneath Earth’s surface.

MD-Shaking of rocks beneath earth's surface

BD-The point on Earth’s surface directly above an earthquake’s focus.

MD-A point on Earth’s surface

BD-The point beneath Earth’s surface where rock breaks under stress and causes an earthquake.

MD-Point where rock breaks

BD-A type of seismic wave that compresses and expands the ground.

MD-Sciesmic wave that compresses the ground

BD-A type of seismic wave that moves the ground up and down or side to side.

MD-Sciesmic wave that moves the ground

BD-A type of seismic wave that forms when P waves and S waves reach Earth’s surface.

MD-Sciesmic wave that forms at Earth's surface

BD-The measurement of an earthquake’s strength based on seismic waves and movement along faults.

MD-Measurement based on strength of earthquake

BD-The state of being intense.

MD-The strength of the earthquake

BD-A device that records ground movements caused by seismic waves as they move through Earth.

MD-A machine that records earthquakes

BD-The record of an earthquake’s seismic waves produced by a seismograph.

MD-The record of the earthquake on paper

BD-The force that opposes the motion of one surface as it moves across another surface.

MD-To rub against one another

BD-An earthquake that occurs after a larger earthquake in the same area.

MD-An earthquake after the first earthquake

BD-A large wave produced by an earthquake on the ocean floor.

MD-A water hurricane

BD-An elastic wave in the earth produced by an earthquake.

MD-A scientific, earthquake wave