Earth's Layers
What is the outermost layer of the Earth called?
The Crust
What natural event occurs when tectonic plates suddenly move?
An Earthquake
What process breaks down rocks into smaller pieces without moving them?
Weathering
What type of rock forms from cooled magma or lava?
Igneous Rock
What is the term for molten rock beneath the Earth's surface?
Magma
Which layer of the Earth is made of molten metal and is located beneath the mantle?
The Outer Core
What is the name of the molten rock beneath the Earth's surface that can create volcanoes?
Magma
What process involves the movement of rock and soil from one place to another by wind, water, or ice?
Erosion
What type of rock is formed from layers of sediment pressed together over time?
Sedimentary Rock
What is the term for the breaking down of rocks into smaller pieces?
Weathering
What is the thickest layer of the Earth?
The Mantle
What type of landform is created when two tectonic plates collide?
Mountains
What is a natural example of erosion caused by rivers? (Think about Arizona)
The Grand Canyon
What type of rock forms when existing rocks are changed by heat and pressure?
Metamorphic Rock
What do we call the slow movement of water or wind carrying away small particles of rock?
Erosion
What layer of the Earth is solid metal and found at the very center?
The Inner Core
What is the name of the process where magma reaches the Earth's surface and solidifies?
Volcanic Eruption
What human activity can accelerate erosion by removing plants that hold soil in place?
Deforestation
What is the process called when sediment is compacted and cemented into sedimentary rock?
Lithification
What is the name of the solid layer of rock beneath the Earth's soil?
Bedrock
How does the temperature change as you go deeper into the Earth's layers?
The temperature increases
What kind of boundary occurs where two tectonic plates move away from each other, often creating new ocean floor?
Divergent Boundary
What is the term for when sediment is deposited in a new location after being carried away by erosion?
Deposition
How can an igneous rock become a metamorphic rock in the rock cycle?
By being subjected to heat and pressure.
What is the process of rock being worn down by contact with other rocks or particles called?
Abrasion