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.