Vocab
the lines north and south of the equator on a map (up and down)
latitude
What is the Ring of Fire and what percent of the world's volcanoes occur within it?
a group of active volcanoes that form a circle shape around the Pacific Ocean
75%
1) Secure your space
2) Plan to be safe
3) Organize disaster supplies
4) Minimize financial hardship
5) Drop, Cover, Hold on
6) Improve safety
after the quake:
7) Reconnect and Restore
What direction are longitude lines?
east to west (left to right)
What do paleontologists study?
ancient life
What was one outcome of the great floods of Yosemite or Thompson Canyon?
- water rose 10ft in California damaging and destroying large parts of the national park (Yosemite)
- water rose 20ft in Colorado causing 145 deaths and the destruction of 400 cars, 418 houses, and 52 businesses (Thomson Canyon)
What is the prime meridian?
the center of the equator 0° - the imaginary line that divides Earth into two equal parts: the Eastern Hemisphere and the Western Hemisphere
What is a strata?
a layer
What was one outcome of the Earthquakes in Northridge in 1994 or San Francisco in 1906?
- California's earth shook for 15 seconds leaving 22,000 people without homes (Northridge)
- a 47 second quake caused extreme pipe damage resulting in fires to break out that couldn't be put out for 4 days and 4 nights (San Francisco)
What is it called when the Earth's crust plates slide beneath the edge of another plate?
subduction
What do we call the movement that changes the Earth's crust?
tectonic forces
What irreversible damage was caused by the mudslide in Thistle, Utah in 1983?
the entire town was covered in mud and was never able to be uncovered
What are tectonic plates?
sections or pieces of Earth's crust
How is it possible that fossils of ocean animals can be found on tops of mountains?
- through the process of plate tectonics, Earth's crustal plates can cause the sea floor to be pushed upwards, forming mountains
- floods where water rose high could have deposited ocean animals on land
- animals like birds could have caught ocean animals for food and carried them to the tops or parts of mountains leaving their bones to be encased in rock layers
In 1996 Yosemite experienced rocks falling at a speed of about 248 miles per hour. What caused this Rockfall?
deep snow, heavy rain, and warm temperatures