Plate Tectonics
What is the theory that describes how plates in the earth's crust slowly move and interact with each other to produce earthquakes, volcanoes, and mountains?
What is Plate Tectonics
What are three basic kinds of materials that may erupt from a volcano?
What are Lava, ash, and gases?
A sudden violent shaking of the earth caused by shifting in the earth's crust is known as...
What is an earthquake?
What do you call the preserved remains, impression, or trace of any once-living thing from a past geological age.
What is a fossil?
The outer most layer of the Earth is referred to as...
What is the Earth's crust.
These types of plates are moving away from each other.
What are divergent plates?
This is melted rock below the surface of the earth.
What is magma?
This scale rates the magnitude of earthquakes from 1 to 10.
What is the Richter scale?
Fossils are often found in this type of rock. This type of rock forms in layers that are pressed together over time.
What is Sedimentary rock?
Directly underneath the Earth's crust is the layer known as the _____________. This is where magma resides.
What is the mantle?
Convergent continental tectonic plates most often create what landform?
What are mountains?
The Himalayan Mountains are an example.
What do you call a scientist who studies volcanoes?
What is a vulcanologist?
What fault can be seen from the surface of the earth in California?
What is the San Andreas fault?
This is a light and spongy rock that comes from lava.
What is Pumice?
Scientists believe that earth used to have one supercontinent that incorporated almost all of the landmasses on Earth. This supercontinent was called _______________.
What is Pangea - also spelled Pagnaea?
What occurs frequently on a transform plate boundary with lateral sliding?
What are faults and earthquakes?
This type of rock forms when magma cools and hardens. The creation of this type of rock can occur under earth's surface or after lava erupts from a volcano.
What is igneous rock?
This machine measures the strength of the seismic waves in an earthquake.
What is a seismograph?
This type of rock is formed under the surface of the earth. It is created by extreme heat and pressure.
What is metamorphic rock?
The earth's crust combined with the very top part of the mantle is called the _________________. This layer is what is divided up into the tectonic plates.
What is the lithosphere?
This landform is often found in the ocean where tectonic plates meet.
What are trenches?
Over one-half of the world's active volcanoes are located in the _____________________.
What is the Ring of Fire?
The crack or fracture between two blocks of rock caused by a large movement of earth's crust. This movement may occur rapidly or very slowly.
What is a fault?
What are three types of rocks?
What are metamorphic, igneous, and sedimentary.
Name the 4 layers of Earth.
What are the inner core, outer core, mantle, and crust.