Earth Flashcards
Review for Test
Geography
Study of the Earth
What planet do we live on?
Earth
How many planets are there?
8
Orbit
path the Earth revolves around the Sun
Axis
Imaginary line between the North and South Poles
equinox
a point in which the everywhere on Earth, days, and nights are nearly equal in length
solstice
days are longer or shorter in opposite hemispheres (Northern/Southern)
Earth rotation
it takes 24 hours to rotates around its axis
3 layers of Earth
Crust, Mantle, Core
Which layer of the Earth do you live on?
Crust
Weathering
process that breaks rocks down into tiny pieces
Erosion
process in which water, ice, or wind remove small particles of rock
Weathering & erosion
shape many landforms
Pangea
theory of supercontinent that included all current land masses, believed to have been in existence before the continents broke apart
Continental drift
the gradual movement of the continents across the earth’s surface through geological time.
Weather
condition of air and sky at a cetain time
climate
average weather of a place over many years
savanna
grasslands
ecosystems
group of plants and animals that people on each other and their enivonment for survival
tornado
swirling funnel of wind
hurricane
strong winds and rainstorm that forms over the Atlantic Ocean
tsunami
tidal waves
earthquakes
a sudden and violent shaking of the ground, sometimes causing great destruction
Place
physical features of an area