Plates
Transforming plate boundaries
when two plates rub side to side against each other
Metamorphic
a rock composed of heat and pressure, metamorphic can be made from igneous and sedimentary rocks
Wind
The movement of sediments via the currents of wind
Stratigraphy
Era
the eras are periods of time that were determined by things such as major events that happened.
Plate tectonics
The plates underneath the earth that move to create natural disasters and landforms.
Magma
Molten Rock
Deposition
the dropping of materials through erosion
The law of superpositions
that dating of rock layers using Stratigraphy
Periods
Divided based on important events, but not important enough to end an era
Divergent boundaries
When plates separate
Igneous Rock
form when hot, molten rock crystallizes and solidifies
Cooled Magma
Living things
people and animals can carry pieces of broken rocks, around to places, then dropping them off, also known as deposition
Erosion
The moving of small things such as sediments, and small rocks.
Precambrian
The first era of the earth (4.6 billion years ago)
Convergent boundary
when plates come together making convergent boundaries
Sedimentary Rocks
a rock composed of little sediments (little pieces.) can be made from igneous and metamorphic rocks
Water
The movement of sediments or rocks via a stream or ocean currents
Weathering
Is the breaking down of rocks / landforms into sediments
What period are we in now?
Anthroppcene
Name all the different plat boundaries
Convergent boundaries, Divergent boundaries, Transforming plate boundaries
Rock cycle
The cycle that each rock forms through and goes through
Ice
The water is originally seeping into the rock. When it freezes, it creates little cracks. Over time the cracks break the rock into smaller pieces causing weathering
Geological time scale
This is a scale that was used to determine how each period or era starts or ends based on rocks. They see how much carbon is left in an object, then determine where it was from. They determine the start and end of the periods based on major events
Put the Eras in Order
Mesozoic, Precambrian, Paleozoic, Cenozoic
Precambrian, Paleozoic, Mesozoic, Cenozoic