Volcanoes
Earthquakes
Floods
Layers of Earth
Beaches
100
magma
What is melted rock called?
100
epicenter
What is the point on the surface directly above the focus?
100
dam
What is a wall across a river?
100
innercore
What is the inner most layer of Earth?
100
beach nourishment
What is this called when dumping new sand on the beach?
200
lava
What comes out of a volcanoe?
200
California
What is the name of the state where most earthquakes occur?
200
storm drains
What are the holes in the sidewalks and streets called?
200
mantle
What is the second layer of the earth?
200
seawall
What is the wall along the rear edge of the beach?
300
Ring of Fire
Where does most volcanoes happen?
300
seismograph
What instrument measures the seismic waves of an earthquake?
300
floodway
What is area set aside for water overflow?
300
lithosphere
What is the solid upper mantle and crust combined to form a rigid shell called?
300
dredging
What do you call the deepening and widening of a river or harbor?
400
vinegar and baking soda
What makes a model volcanoe erupt?
400
focus
What is the point underground where faulting occurs?
400
Hurricane Katrina
What was the name of the hurricane in 2005 that struck Lousiana and Mississippi?
400
outercore
What is the third layer of the Earth?
400
jetty
What is a long narrow wall from the shore into the ocean?
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