Landforms
a Low-land area between two higher sides
Valley
the primary measure for comparing climates?
Temperature
What type of water makes up most of the earth's surface, and 97% of all water on earth?
saltwater
how many tectonic plates make up the earth's crust ?
16
the largest of all landmasses, we have 7 of them on Earth
Continents
a smaller landmass that is completely surrounded by water
Island
What is it called when day and night are of equal length in both hemispheres?
Equinox
contained inside the earth's crust, this is an important source of drinking water
Groundwater
Name all the layers of Earth (4)
inner core, outer core, mantle, crust
which 2 continents are completely surrounded by water?
Australia & Antarctica
a flat or gently rolling landform found inland or along coastlines
Plain
Who was the scientist that invented a system to categorize Climate Zones?
Vladimir Koppen
this is the area where a river deposits all the silt, sand, gravel as it empties into a lake or ocean.
Delta
where is most of the fresh water on earth contained?
Frozen, in glaciers and ice sheets.
which part of the water cycle follows Precipitation?
Collection
a group or string of mountains
Range
What causes the earth to constantly orbit around the sun?
the sun's GRAVITY (gravitational pull)
an underwater plain that borders a continent
continental shelf
what is a method used by scientists to determine the age of an artifact?
carbon dating
the lowest point on Earth is an example of this type of landform, a long narrow steep-sided cut into the earth's surface
Trench
a flat landform that rises above the surrounding land
Plateau
Which 2 seasons have a SOLSTICE?
summer and winter
a larger area of ocean waters surrounded by continents and islands
Gulf
approximately how this is the earth's MANTLE layer?
1800 (+/- 100) miles thick. It is the thickest layer
which part of the water cycle follows Evaporation?
condensation
a narrow strip of land connecting two larger land areas
Isthmus
What event occurs on or around September 21 in the northern hemisphere?
Fall equinox
Name the 5 oceans in order from SMALLEST to LARGEST
Arctic, Southern, Indian, Atlantic, Pacific
What degree (or angle) is the TILT of the earth's axis?
23.5 degrees
what is the name or term for where a river ENDS (where it empties into a lake/ocean or larger body of water).
Mouth.