geologic time
what is geologic time?
What is the long period of time occupied by the earth's geologic history.
what are the different types of rocks?
Igneous, sedimentary, and metamorphic
The breaking down of rocks
what is Weathering?
The theory explaining how the earths crust is broken up into areas which move slowly over time.
What is Plate tectonics theory?
a measure of the weight of the atmosphere on a given area of the surface of the Earth
What is air pressure?
geologic time scales divide geologic time into what?
What is eons and eras?
a set of natural processes that form, break down, change, and reform rocks overtime.
what is the Rock Cycle?
the setting down of sediments
what is deposition?
What moves tectonic plates?
What is convection currents?
Sunny, cloudy, windy, rainy, and stormy
What is different weather patterns?
a representation of time based on the rock record of Earth
what is the geologic time scale?
rocks made overtime with heat and pressure
what is Metamorphic rock?
can ice cause weathering?
true or false?
true
How many plates does earth have?
What is 7 plates?
What causes different weather patterns?
What is the rotation of the earth and amount of heat in different parts?
what do scientists use to figure out the geologic time scale?
what is fossils and rock layers?
name 3 types of igneous rocks
Obsidian, granite, bath salt
what are 4 different ways rocks are eroded?
Water, wind, glaciers, gravity
What type of boundary created the Mid-Atlantic Ridge?
What is divergent plate boundary?
What are the 4 global climatic factors?
What are atmosphere, hydrosphere, cryosphere, and biosphere?
true or false? relative age tells you how old something is.
FALSE! Relative age only tells us the order in which events occurred, from the earliest to the most recent.
what is the process called in which rocks change into metamorphic rocks?
metamorphism
involves the interaction of rock with mineral solutions to change the composition of rocks chemically.
what is Chemical Weathering?
What is the the name of the scientist who came up with the continental drift hypothesis?
Who is Alfred Wegener?
The effect of the Earth's rotation on the path of air and water (causes the path to curve)
What is the Coriolis Effect?