This is the driving force behind the movement of material within the Earth's mantle.
What is convection?
The Earth's crust is divided into these large sections.
What are plates?
Molten rock that cools and hardens forms this type of rock.
What is igneous rock?
The breakdown of rocks into smaller pieces.
What is weathering?
The preserved remains of ancient organisms.
What are fossils?
Hot, less dense material in the mantle does this.
What is rise?
When plates move apart, this type of boundary is formed.
What is a divergent boundary?
Rocks formed from compacted and cemented sediments.
What is sedimentary rock?
The movement of weathered material.
What is erosion?
Fossils found in different layers of rock can show this.
What is the change of life over time?
Cold, more dense material in the mantle does this.
What is sink?
When plates collide, this type of boundary is formed.
What is a convergent boundary?
Rocks changed by heat and pressure.
What is metamorphic rock?
The laying down of sediment in a new location.
What is deposition?
Layers of rock are called this.
What are strata or layers?
The Earth’s internal energy is responsible for creating these land formations.
What are volcanoes, mountains, and earthquakes?
When plates slide past each other, this type of boundary is formed.
What is a transform boundary?
The process that turns sedimentary rock into metamorphic rock.
What is heat and pressure?
Water, wind, and ice are agents of this process.
What is erosion?
This type of rock is where most fossils are found.
What is sedimentary rock?
The layer of the earth where convection currents occur.
What is the mantle?
The theory that explains the movement of the earth’s crust.
What is plate tectonics?
The process that turns magma into igneous rock.
What is cooling and hardening/solidification?
This process creates features like deltas and sandbars.
What is deposition?
Geologic patterns help us understand this about Earth's past.
What are environmental changes?