Jawbreaker
What are the 4 layers of the Earth?
Lithosphere, mantle, outer core, inner core
What are the 3 types of rocks?
Igneous, metamorphic, and sedimentary
What is the difference between relative and absolute age?
Relative age: a rocks age compared too other rocks ages
Absolute age: exact number of years since a rock has formed
Do earths plates move slowly or quickly?
Slowly
What is erosion?
When surface material is removed by moving water, wind, and ice
What is the mantle?
A layer of hot slowly flowing rock where convection currents can be found
How are the different rocks formed?
Igneous: cooled magma
Metamorphic: heat and pressure
Sedimentary: sediments pressed together
What is the law of superposition?
Oldest rock layer is on the bottom, youngest rock layer is on the top
What is plate movement caused by?
Convection currents in the mantle
What is deforestation?
When forests are cleared by people
What is the lithosphere?
The crust and upper mantle, solid outer layer
What are surface processes?
Weathering, erosion, and deposition
What causes the youngest layers to sometimes be at the bottom?
Folding
What are the different types of plate boundaries?
Divergent, convergent, and transform
What is urbanization?
When large numbers of people move to form cities
What is the hottest layer?
The inner core
What are subsurface processes?
Heat, pressure, plate movement
What is a type of rock formation that is ALWAYS younger than other rocks around and beneath it?
Intrusion
What are results of plate movement?
Earthquakes, volcanoes, mountain building, and ocean trenches
What are examples of people not taking care of the earth?
Deforestation, urbanization, pollution, erosion, water diversion
What is the difference between the inner and outer core?
Inner core is solid iron and nickel, hottest layer
Outer core is liquid iron and nickel
Can a sedimentary rock become a metamorphic rock?
Yes, any rock can become another type of rock if formed correctly
What is radioactive dating?
Using radioactive elements to determine age
What do the different plate boundaries do?
Divergent: Plates move apart
Transform: Plates slide past each other
Convergent: plates collide with each other
What are effects does people not taking care of the earth?
Habitat destruction, poor air quality, poor water quality, and increased erosion