The evidence that earthquakes happen most often along these plate boundaries
Earthquakes on plate boundaries
Earthquakes
Speed of plate movement
Direction of plate movement
What showed scientists that continents can move?
Hair
Fingernails
Hand
Feet
To get a sense of how fast plates move, what can you look at on your body?
Direction of crust movement
They tell scientist that the crust is moving and that the crust is broken up into plates where these earthquakes usually occur
Age of earth's crust
Movement of earth's crust
Composition of earth's crust
What do earthquakes tell scientists and what is special about them?
States
Earth
Plates
Earthquakes
What moves at the same rate that fingernails grow?
Regions
Movement of earth's crust
Earthquakes
Direction of plate movement
Earthquakes seemed to outline a special feature of earths crust, showing them where the crust was moving
How did scientists learn about the Earth's plates?
Less than 10
Uncountable
About a dozen large plates and several small ones
More than 10 large ones
How many plates is the earth's crust divided into?
Very fast
Few meters a year
About the same rate fingernails grow
A few centimeters a year
How fast do plates move?
They are visible during earthquake
Plates don't move very fast. Sent 13: They move only a few centimeters a year
They can be found out by intensity of earthquake
Movement of Plate lead to earthquakes at boundaries
Earthquakes occur at plate boundaries
Why is it likely that scientists only learned about plate boundaries from studying earthquakes?
Regions
Movement of earth's crust
Earthquakes
Direction of plate movement
What led scientists to discover plates?
Plate tectonics
Direction and speed of plate movement
Movement of earth's crust
Earthquakes
What led to the discovery that the Earths crust was broken up into regions, or plates?
The direction and speed
Speed of motion
Direction of motion
When they will move
What do scientists know about the plates motion?
Oceans
Earth
Earth's land masses
Continents
Earthquakes happen along plate boundaries, which scientists believe is evidence that what moves?
Earthquakes seemed to outline a special feature of earth's crust. Earthquakes let scientists know where the crust was moving. This led to the discovery that the Earths crust was broken up into regions, or plates. Earthquakes happen most often along these plate boundaries. This was evidence that continents can move. The movements of the plates are called plate tectonics. The Earths crust is divided into plates. There are about a dozen large plates and several small ones. Each plate is named for the continent or ocean basin it contains. Scientists know he plates are in motion. They now know the direction and speed of this motion . Plates dont move very fast. They move only a few centimeters a year. This is about the same rate fingernails grow. So you might wonder, what could cause this motion? What supplies the energy to cause this change? 