Earth's Layers
The thinnest layer of Earth composed primarily of rocky material.
Rocks that have melted and cooled. Ex. Lava and magma
What is igneous rock?
What is weathering?
color, texture, grain size, composition, are all called
Large rigid blocks (plates) that interact with each other at their boundaries.
The innermost layer of Earth composed of iron and nickel.
What is the inner core?
Rocks that were changed by heat and pressure.
What is metamorphic rock?
The carrying away of the rocks and materials by either wind or water.
What is erosion?
Melting igneous rock makes
These occur when the plate tectonics move together causing mountain ranges on land and trenches underwater.
What is convergent boundaries?
One of the outermost layers of Earth composed primarily of rocky material.
What is the mantle?
Rocks that have layers of sediments cemented together.
What is sedimentary rock?
The depositing of rocks and materials in a new location as sediment.
What is deposition?
Cooling magma creates
What is igneous rock?
These occur when the plate tectonics slip past each other horizontally. They cause earthquakes. Also called strike-slip or sliding boundaries.
One of the innermost layers of Earth composed of iron and nickel.
What is the outer core?
Items that provide information about life and conditions of the past.
What are fossils?
This process occurs prior to erosion
What is weathering?
Sediments that are cemented together create this
What is sedimentary rock?
These occur when the plate tectonics move apart on the ocean floor. They form volcanoes and mountain ranges underwater.
What are divergent boundaries?
Heat energy
A slow moving mass of ice
What is a glacier?
The youngest fossils would be at this layer of the earth
The top layer
Heat and pressure creates this kind of rock
What is metamorphic rock?
Scientists study this to learn about the temperature of the earths crust
What are volcanoes?