Chapter 2 Flashcards
sun and the group of bodies that revolve around it
solar system
major bodies that orbit a star
planets
smaller objects that orbit a planet
moons
body whose great size attracts other objects through gravity
sun
type of energy that reaches earth as light an heat
solar energy
one complete spin of earth on its axis
rotation
one elliptical orbit of earth around the sun
revolution
smaller outer planet that has a rocky core
pluto
galaxy in which we live
milky way
one of only two planets in the solar system that does not have a moon
mercury
7th planet, third largest planet
uranus
third planet from the sun and the fifth largest of the nine planets
earth
includes all life forms, both plants and animals
biosphere
the envelope of gases that surrounds earth
atmosphere
all of earth water
hydrosphere
includes land and soil and the solid crust of the planet
lithosphere
a group of different parts that interact to from a whole
system
geographers divide systems into 4 major parts
earths 4 spheres
where large amounts of ice are locked
glaciers in polar regions
biological, chemical and physical conditions that interact and affect life
environment
individuals and groups that influence government decisions on environment
lobbying
