Earthquakes
A vibration caused by an earthquake.
What is a seismic wave?
What is the eye?
This causes a tsunami.
Melted rock is called ___
What is magma?
T/F: Humans can prevent natural disasters.
What is false?
T/F: An instrument that detects and records earthquakes is called a seismograph.
What is false? (correct answer: seismometer)
An abnormal rise of ocean water, generated by a storm, that can force large amounts of water ashore.
What is a storm surge?
What is a floodplain?
Once magma reaches the surface it is called ___
What is lava?
This is the best building material to use if building a house near a volcano.
What is stone?
The strength of an earthquakes waves ____ as you move away from the center.
What is weaken?
A tropical storm becomes a hurricane when its winds reach this speed.
What is 74 mph (119 km/h)?
T/F: Tsunami waves can travel thousands of miles and reach enormous heights.
What is true?
Scientists use ___ to help determine when a volcanic eruption might occur.
What is seismic waves?
Scientists use these methods to track tropical storms and map out possible paths to warn people (must name at least 1)
What is (1) satellite images, (2) radar/direct measurements from airplanes, and (3) tracking ocean conditions?
Cracks in the Earth's crust created as tectonic plates move and change.
What is a fault?
These conditions would lead to greater flooding during a hurricane (must name at least 1)
What is (1) strong winds, (2) heavy rain, or (3) low elevation?
One cause of flooding is ___ (must name at least 1)
What is (1) overflowing rivers, (2) coastal storms, (3) heavy rainfall, or (4) a major failure of structures like dams?
Volcanoes (and earthquakes) are most likely to occur here.
What is a plate boundary?
These are ways to prepare for a flood (must name at least 2)
What is (1) building walls/levees/using sandbags to reinforce riverbanks, (2) moving to higher ground/evacuate, (3) installing pumps to keep water out of basement, or (4) preparing a disaster supply kit?
The ___ is the point below ground where an earthquake begins and the ___ is the point on the surface directly above. (must name both)
What is (1) focus and (2) epicenter?
These are all ways to prepare for a hurricane (must name at least 2)
What is (1) leave/move to higher ground, (2) board up windows, (3) stay away from windows/doors, (4) bring in all outdoor furniture/anything not tied down, and
(6) store supplies such as food/water/flashlights?
These are all reasons why tsunamis can be so dangerous (must name at least 2)
What is (1) speed/volume/size, (2) fast rising flood waters, (3) multiple waves, or (4) the water may drag things back out to sea with it?
About 90% of Earth's volcanic eruptions happen here.
What is The Ring of Fire?
These are ways to stay safe during an earthquake (must name at least 2)
What is (1) duck under a table/stand in a doorway, (2) stay away from walls/windows, or (3) staying away from trees/power lines/anything that might fall?