WorksheetsChapter 12 - Forces in the Earth - 6th grade
Total questions: 20
Worksheet time: 10mins
Normal Fault
Break in the crust in which the over hanging block of rock has slid down.
A type of fault where the hanging wall moves up relative to the footwall.
A fracture in the Earth's crust where two blocks slide past each other horizontally.
A geological formation where rocks are pushed together and fold.
Sea-floor spreading
Theory that the ocean floor spreads apart as new crust is formed at mid-ocean ridges
Process by which tectonic plates collide and create mountains
Concept that oceanic crust is older than continental crust
Theory that the ocean floor remains static over time
Focus
Point inside the earth where rock first moves, starting an earthquake
The surface location directly above the earthquake's origin
The area where seismic waves are first detected
A measure of the earthquake's intensity
Volcano
Mountain that develops where magma pushes up through the earth's surface
A type of cloud formation
A large body of water
A geological fault line
Continental Drift
Theory that the major landmasses of the earth move
A hypothesis that continents are fixed in place
A model explaining ocean currents
A concept related to climate change
Convection Current
Circular motion of a gas or liquid as it heats
A process of heat transfer through direct contact
The movement of air caused by temperature differences
A type of wave motion in fluids
What is the difference between the focus and epicenter of an earthquake?
Focus: point on the earth's SURFACE directly over the epicenter
Epicenter: point INSIDE the earth where rock first moves
Focus: point INSIDE the earth where rock first moves
Epicenter: point in the atmosphere where seismic waves are first detected
Strike-slip Fault
Break in the crust in which the blocks of rock move horizontally past each other
A type of fault where rocks move vertically
A geological formation caused by volcanic activity
A fracture in the Earth's crust that does not result in movement
Fault
Break in the earth's crust along which movement occurs
Type of rock formation that is solid and unyielding
Natural disaster caused by seismic waves
Layer of soil that supports plant life
Name 3 types of volcanoes
Cinder Cone Volcano
Shield Volcano
Composite Volcano
Lava Dome Volcano
Reverse Fault
Break in the crust in which the overhanging block of rock has been raised
Type of fault where the blocks slide past each other horizontally
Fault that occurs when two blocks of rock are pulled apart
Break in the crust where the hanging wall moves down relative to the footwall
Plate
Large sections of the earth's crust that moves
A type of geological formation
A flat dish used for serving food
A layer of sedimentary rock
Folding
Bending of rock layers that are squeezed together.
Breaking of rock layers due to tension.
Formation of new rock layers from magma.
Erosion of rock layers by wind and water.
Name 2 ways Mountains form
1. volcanic eruptions
2. folding
3. erosion
4. sediment deposition
What evidence supports Continental Theory?
Puzzle fit
Fossils found on one continent were similar to those found on other continents
Mountain ranges and rock layers seem to continue from one continent to another
Glacier deposits were found at the equator where no glaciers could exist.
Name 3 types of faults and how they move
Normal fault: overhanging block of rock slides down
Tension fault: blocks of rock pull apart
Compression fault: blocks of rock push together
Twist fault: blocks of rock rotate around each other
Earthquake
Shaking of the earth's crust
A sudden volcanic eruption
A type of weather phenomenon
Movement of tectonic plates without shaking
Tsunami
Large sea wave caused by vibrations of the earth
Small wave caused by wind
Wave caused by underwater volcanic eruptions
Wave generated by a ship's movement
Composite Volcano
A volcano that is primarily formed from explosive eruptions of ash and rock.
A tall volcano formed from quiet lava flows that alternate with eruptions of ash and rock.
A flat volcano formed from low-viscosity lava flows.
A volcano that erupts only once in its lifetime.
Cinder Cone Volcano
A small volcano with steep sides and explosive eruptions; made of ash and rock
A large volcano with gentle slopes and non-explosive eruptions; made of lava flows
A volcano that is primarily composed of ice and erupts with steam and gas
A flat-topped mountain formed by the erosion of surrounding land
