Volcanoes
Type of volcano that has small eruptions like Hawaii
What is shield volcano
The strongest shape when making buildings out of straight pieces of wood.
What are triangles
_______ found on both Africa and South America is evidence for continental drift
Where are fossils
Type of plate boundary where Mt Everest and the Himalayas are.
Type of volcano with large eruptions like Mr. Fuji
What is composite volcanos
Divergent plates are moving in what directions?
Away from each other
Most earthquakes on earth occur along
Plate boundaries
Besides fossils, Alfred Werner also looked at old _________ as evidence for continental drift
What are rocks and mountain ranges
Name of the fault that runs next to San Francisco
San Andreas Fault
Where most volcanoes on Earth occur
What is plate boundaries
Convergent plates are moving in what directions?
What are into each other
A 6.0 earthquake is _______ times bigger than a 5.0 earthquake on a Richter scale
What is 10x
Continental drift shoes North America and Eurasia moving apart from each other. This means there is a _____________ plate boundary between them.
what is divergent plate
The mid Atlantic ridge is this type of plate boundary
Divergent
Volcanoes with low viscosity
Shield volcanoes (smaller eruptions)
What are next to each other
A 7.2 earthquake is ________ times bigger than a 5.2 earthquake
What is 100 times
What was found in Antarctica showing that it used to be closer to the equator.
What are fossils of ancient tropical plants.
The largest Earthquake to ever happen in the United States was in this state
Alaska
Why do volcanoes usually erupt?
gas below the magma builds up pressure and wants to rise, pushing lava out
Describe what happens at a subduction zone
One plate moves over another plate (a type of convergent boundary)
The tool used to measure earthquakes
What is a seismograph
What causes Plate tectonics to move?
Magna flowing beneath the Earth in convection currents
Hawaii is not on a plate boundary. Instead it has what underneath it?
Hot Spot