Locations
Earth's crust is made up of huge slabs of solid rock, called _________.
plates
What is the name of the instrument used to detect and measure waves produced by earthquakes?
seismograph
Which natural hazard might cause a landslide when the ground shakes?
earthquake
A ____ is a disturbance that transfers energy from one point to another.
wave
If you are indoors during an earthquake, you can seek safety under (a table or a window)
under table
The crack where Earth's plates meet is called a ____.
What word do scientist use to describe the amount of energy released by an earthquake?
magnitude
What two earth forces occur in the Ring of Fire?
earthquakes and volcanoes
side-to-side
Which structure CANNOT be used to help a building resist the lateral (2) forces of an earthquake? shear wall, bracing, beam, brick
bricks
What usually causes an earthquake to happen?
movement along a fault line
Wavelength is the distance between ____ ______ and _______.
wave crests and troughs.
Which two landforms are usually found along the boundary between plates? plains, rivers, mountains, ocean trenches
mountains and ocean trenches
Which kind of wave is a vibration from an earthquake that travels through Earth? sound or seismic
A group of students are designing a model house that is safe in strong winds. Which material would be the safest? A = toothpicks, B = bricks, C = linking cubes, D = craft sticks
C = linking cubes
Where do most earthquakes occur? edges of the ocean OR around an active volcano
edges of the ocean
What is the height of a wave from its crest (or trough) to its midpoint?
amplitude
Most earthquakes and volcanoes occur in _________. (isolation or bands)
isolation
Waves that move material up and down as they travel are called ________________.
transverse waves
Which best describes how people can prepare for earthquakes? People can build earthquake-safe buildings in earthquake zones. OR People can use technology to stop earthquakes.
People can build earthquake-safe buildings in earthquake zones.
Where do most earthquakes occur? highest point of the country OR continental plate boundaries
continental plate boundaries
What kind of waves spread out in all directions from the focus? (The point where an earthquake begins.)
seismic
What profession study landforms and create maps?
Cartographers
The steeper the lines of a seismic wave the ____________ the earthquake. (stronger or weaker)
stronger
A construction company builds a model of waves cause by an earthquake. How should the waves be drawn? moving in a side-to-side pattern, moving in an up-and-down pattern, moving in one direction from central location, moving out from a center location in all directions
moving out from a center location in all directions