Earth Space Science Quizlet Exam Vocabulary Flashcards

Ground Water
Terms Definitions
chemical weathering
breaking down of rocks by changing chemical composition
mechanical weathering
breaking down of rocks into smaller pieces without changing the composition
ice wedging
water seeps into cracks in rocks and freezes
organic activity
burrowing animals and root pry
climate
weather over an area for a long period of time
weather
atmospheric conditions over a short period of time
humus
dark, organic material found in fully developed soil
erosion
the process by which the products of weathering are transported
spring
a place where ground water discharges through a natural opening in the earth's surface
ground water
water found under the earth's surface
Floridan
largest aquifer in Florida
aquifer
rock structure under ground that holds water like a sponge
karst
terrain that includes sinkholes and springs
pollutants
materials that can damage the quality of ground water
runoff
extra rain that runs into streams, lakes, or oceans
precipitation
the moisture released when clouds become heavy and form rain, snow, hail, etc.
hydrologic cycle
the cycle of water through the environment
corona
outermost layer of the sun's atmosphere
core
center of the sun
prominence
violent storm on the sun
solar wind
stream of particles from the sun
sunspot
dark area on the sun's surface
CME
coronal mass ejection event
star
body of gases that gives off a tremendous amount of radiant energy in the form of light and heat
light-year
distance light travels in one year
protostar
beginning stage of a star
supernova
large explosion of a dying star
black hole
dense hole in space where even light can't escape
constellations
star groups
galaxy
large groups of stars that travel as a unit
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