Volcanoes
Name the three different types of volcanoes we learned about in this chapter.
Active, dormant, and extinct.
This state has about 10,000 earthquakes a year because of a giant fault line.
California
The earth has ____ main layers.
4
Crust, mantle, outer core, inner core
There are no volcanoes in the state of Florida.
True
a large amount of snow, soil, and rock that slides down the side of a mountain
avalanche
What is the difference between magma and lava?
Magma is underneath the earth's surface and lava is above the earth's surface.
What causes tsunamis?
An earthquake or volcanic eruption on the ocean floor
Earthquakes are ranked on a scale from 1 to ___.
10
Dormant volcanoes are not expected to erupt again
False
a large amount of dry soil and rock that slides down a steep slope
landslide
What are the 3 things a volcano spews out during an eruption?
Hot ash, lava, and gases
How do tsunamis affect people living on the coast?
Destroy homes, uproot trees, carry debris inland for miles.
People who make maps are called ____________.
cartographers
Most earthquakes are so small that people cannot feel them.
True
a crack in the earth's crust
fault
Name an island that was formed due to volcanic activity
Hawaii, Surtsey Island, etc
How do earthquakes occur?
The grinding of tectonic plates.
In 2011, a powerful tsunami hit the country of ______ and caused much destruction.
Japan
An avalanche is an example of a gradual change.
False, it is a sudden change
the removal of soil and rock by wind or water
erosion
What volcano in Italy in considered to be one of the world's most dangerous active volcanoes?
Mount Vesuvius
The San Andreas Fault
The four continents that surround the Ring of Fire are _________, __________, __________, and ____________.
Asia, Australia, North America, and South America.
Earth is the planet with the most volcanoes
False, Venus has the most volcanoes!
What is a seismograph?
A tool that scientists use to measure vibrations from volcanoes and earthquakes.