changing crust
what was continental drift
hypothesis that the continents used to be connected
when did the universe begin
13.8 bya
what is an igneous rocks
form by cooling and solidification of molten rock
what are the processes in the water cycle
evaporation, condensation, transpiration, precipitation, runoff, infiltration
where do convection cycles occur
asthenosphere
is oceanic or continental crust thicker, and which is more dense
oceanic is more dense, continental is thicker
how old is our solar system
4.6 byo
what is a sedimentary rock
a rock formed by the compaction and cementation of sediments
what is used to measure air pressure
a barometer
what is erosion
the movement of rocks and sediments
what is the inner core made out of
solid iron and nickel
what was the event that caused the universe to begin
big bang
what is a metamorphic rock
formed by any rock that is changed by heat and pressure
what is water retention
the amount of water the soil can retain or hold
what is deposition
the dropping of rocks or sediments
what are examples of constructive forces
deposition, volcanic eruption, mountain building, mid-ocean ridge
what is keplers 1st law of motion
all orbits are ecllipses with the central object at one focus
what are examples of renewable energy
solar, hydro, wind, geothermal
the incoming solar radiation from the sun reaches earth
what is a positive relationship on a graph
when both x and y increase
what are examples of destructive forces
weathering, erosion, and mass movements (ex. rock slides and mud slides)
what is keplers 3rd law of motion
the period of revolution is directly related to the distance from the sun
what is an example of non renewable energy
fossil fuels
when is the highest and lowest insolation level
highest: june 21st
lowest: december 21st
5700 years