How can we help?

You can also find more resources in our Help Center.

47 terms

physical geography 6th grade

STUDY
PLAY
projections
way of showing the earth on a flat surface
map key
explains the various symbols represented on a map
legend
another word for map key
compass rose
a map symbol that points to the cardinal directions
cardinal directions
the 4 basic directions - North, South, East, West
intermediate directions
located between the cardinal directions - northeast, northwest, southeast, southwest
inset map
a smaller map that relates to the main map
political map
a tyhpe of map that shows how people have divided up places on the earth into countries, states, cities, and other units in order to govern them
physical map
a type of map that shows what the surface of the earth looks like
contour map
a type of map that shows the relief or changes in elevation over a given area
special purpose maps
thematic maps that show specific kinds of information on many different topids or themes
number of layers of the earth
3
core
center layer of the earth
mantle
the middle layer of the earth
crust
the outer layer of the earth - very thin
plate tectonics
theory that the earths crust consists of plates that are huge slabs of rock that move
faults
where two plates meet, their movement alongside one another causes these cracks in the earths crust
pangaea
a controversial theory that the earths continents were once joined together into a super-continent and tectonic activity caused them to move apart
weathering
natural process that breaks up surface material into smaller pieces
erosion
the process of wearing away or moving weathered material on the earths surface
causes of erosion
water, ice, wind
How much of the earths surface is covered in water
70%
How much water is fresh
2%
water vapor
water in the form of a gas
humidity
the amount of water vapor in the air
what type of air holds more humidity
warm
weather
unpredictable changes in the air over a short period of time
climate
usual, predictable pattern of weather in an area over a long period of time
what is the major factor in climate of a region
the angle of the suns rays
Tropic of Cancer
23.5 degrees N
Tropic of Capicorn
23.5 degrees S
what other major factors affect climate
wind currents, ocean currents, people
earthquake
violent and sudden movement of the earths crust usually where 2 plates meet
hurricane
fierce tropical storms with strong winds and heavy rains
typhoons
what hurricanes are called in Asia
monsoon
tremendous seasonal winds that can blow over a continent for months at a time
tornado
funnel shaped windstorms that reach extremely high speeds up to 250 mph
thunder storm
short storms including lightening, thunder, and heavy rain that develop when warm, moist air meets a cold air system
tsunami
huge sea wave caused by an earthquake on the ocean floor
the 4 parts of physical geography
atmosphere, lithosphere, hydrosphere, biosphere
atmosphere
layer of air surrounding the earth.
three effects of air pollution
global warming, ozone depletion, acid rain
lithosphere
the earths hard outer shell - land areas
topsoil
the first layer of soil that is very rich in nutrients
hydrosphere
all the earths water
biosphere
all the living things on the earth and the environments in which they live
ecosystem
a place where plants and animals are dependent upon one another and their surroundings for survival