Erosion and Weathering
The process that breaks down the earth by sun, water, wind, rain, and air.
Weathering
Where do most earthquakes happen?
On the edges of tectonic plates.
When magma comes out of the earth what is it called?
Lava
What is a landslide?
When the ground becomes loose and then slides.
True or False.
Tsunamis are large tidal waves.
False.
Tsunamis are not tidal waves. Tidal waves are caused by the weather.
The process that carries sediments from one location to another.
Erosion
What is the earth's crust broken up into?
Tectonic Plates
What is the most dangerous part of a volcano?
Pyroclastic Flow
Name 3 causes of landslides.
Volcanic Eruptions, Earthquakes, Wildfires, Heavy Rain, Human Activity
True or False
Tsunamis are large walls of water that rush on to land and wipe out everything in it's path.
True.
What type of processes are weathering and erosion?
Slow Processes
How do tectonic plates cause earthquakes?
When they collide, rub against, or separate from one another it causes the earth's crust to shake.
What are the three different stages of volcanoes?
Active, Dormant, Extinct
What volcanic eruption caused one of the largest landslides in history?
Mount Saint Helens
What is the main cause of Tsunamis?
Underwater earthquakes
Explain what happens to houses that are built on the beach over time.
Over time the ocean will erode away the beach and the houses will get closer and closer to the water until they fall in.
What is the machine that is used to record the magnitude of an earthquake?
Seismograph
What is the most explosive volcanic eruption to have happened in the United States?
Mount St. Helens
Why are landslides considered to be so dangerous?
They happen unexpectedly and very quickly. They are also extremely powerful.
Tsunami is a Japanese word with the meaning of _________ ___________
How was the Grand Canyon formed by erosion?
The Colorado river carved it's way through the canyon by eroding the sides of the canyon away with it's rough waters.
What scale measures the strength of an earthquake?
Richter Scale
Where are 75% of all of earth's earthquakes and volcanoes located?
Ring of Fire
In what states can landslides happen?
All 50 states.
What is the deadliest tsunami on record?
The 2004 tsunami of the Indian Ocean