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PCMS Science Review

sixth grade earth science review

movement of plates occurs in mantle
created in the mantle by heating and cooling of magma convection currents
Theory of _______________________ describes plates moving and causing major geological events Plate Tectonics
Lithospheric plates are located in crust and upper mantle
Continental plates collide they form ___________________. mountains
Movement of large blocks of rock and shaking of the Earth earthquakes
When two plates pull apart in the ocean, _______________________ occurs. seafloor-spreading
Rock closest to a divergent boundary is _____________________ than rock further from the crack. younger
breaking down of rock by natural forces such as water, wind and ice. physical weathering
breaking down of rock by chemical reactions chemical weathering
__________________- is the process that moves sediment from place to place. Erosion
Agents of erosion Water, Wind, Glaciers, Gravity
rocks formed from cooling of magma and lava igneous
rocks formed from heat and pressure metamorphic
rocks formed through the processes of WEDCC sedimentary
Horizon O is the organic layer containing humus
Of the total amount of freshwater, most drinking water comes from groundwater
process in water cycle that changes liquid water to water vapor (gas) evaporation
process in water cycle that changes water vapor back to water droplets condensation
process in water cycle that returns water back to Earth precipitation
process in water cycle that involves water evaporating from the pores in plants transpiration
Which is closest to the shore at a beach? Continental slope or shelf continental shelf
measure of the dissolved salts contained in water salinity
Which is more dense, saltwater or freshwater? saltwater
Why do hot tropical regions have a higher salinity? evaporation
What creates ocean surface currents? wind and Coriolis Effect
What creates ocean deep currents differences in temperature and salinity (density)
What creates ocean waves? wind
What creates tides? moon andsun's gravitational pull
The Gulf Stream is a _____________ water current. warm
We have the highest tides during what moon phases? new and full
Global winds blow in a curved path because of the___________________. Coriolis Effect
A continental polar air mass is __________________ and ______________. cold, dry
A tropical maritime air mass is ________________ and _______________. warm, moist
A swiftly turning, low pressure funnel shaped storm tornado
Tornadoes typically form at a _______________ front. cold
Area in the US where most tornadoes form in the Spring. tornado alley
Hurricanes grow over __________________ ocean water. warm
Hurricanes lose their strength once they make __________________. landfall
The Moon takes _____________ days to orbit the Earth. 29.5
The takes _______________ weeks to go from a New Moon to a Full Moon. two
The Moon is actually lit up by the ___________. Sun
If the Moon is in a new moon position a/an _______________ eclipse could occur. solar
If the Moon is in a full moon position a/an ______________eclipse could occur. lunar
Earth takes _____________ days to orbit the Sun. 365
Earth's tilt and revolution around the Sun creates _______________. seasons
Who discovered the Sun was the center of our Solar System? Copernicus
Sun-centered theory is called the ___________________ Theory. Heliocentric
A "shooting star" Meteor
A "Dirty Snowball" Comet
A Meteor that actually strikes the earth's surface meteorite
____________________ is most like Earth by its size, atmosphere, and weather (rains acid). Earth's "twin sister" Venus
Created by: KimberlyCrews