Question | Answer |
globe | a sphericall representation of the Earth. |
map | a representation, usually on a flat surface, of the whole or part of an area |
The Great Circle Rout | an imaginary line that follows the curve on the Earth & represents the shortest distance between 2 places. |
Map projection | A mathematical formula used to represent the curved surface on the Earth. |
grid system | pattern formed as the lines of latitude and longitude cross one another. |
absolute location | the exact position of a place on the Earth's surface. |
compass rose | a map tool that indicates direction |
atlas | book of maps |
asteriods | any small celestial bodies that revolve around the sun. |
comets | made of icy dust particles and frozen gases. |
meteoriods | pieces of space debree. |
hydrosphere | water based part of the Earth. |
lithosphere | makes up Earth's crust. |
atmosphere | The air around us that we breathe. |
biosphere | the part of Earth that supports life. |
mantle | makes up middle layer of Earth. made of hot, dense rock. |
crust | surface of Earth. The very top layer. |
Continental drift | theory that the continents were once connected. |
Pangea | landmass that existed when continents were joined. |
Plate tectonics | makes up Earth's physical features. |
subduction | process that helps the production of volcanic mountains |
spreading | process that pulls apart sea plates. Allows magma to come between plates. |
folding | bends in layer of rock that makes cracks in Earth's crust. |
Vulcan | Roman God of Fire. |
vulcanology | scientific name for study of volcanoes. |
crater | the indent on the surface of Earth made by a volcano. |
magma | multen rock under Earth's surface. |
lava | multen, fluid rock that comes out of a volcano during an eruption. |
demography | study of the populations |
birth rate | the # of births every year for every 1000 people. |
death rate | the # of rates per year for every 1000 people |
doubling line | # of years it takes population to double in size. |
zero population growth | when birth and death rates are eaqual. |
negative population growth | annual death rate exceeds annual birth rate. |