Show:
distribution of water
Ocean water and fresh water
sources of fresh water
water's effect on shaping earth's surface
also water's effect on shaping earth's surface
100
what is rain, hail, snow etc. classified as?
precipitation
100
what is the chemical name for salt?
sodium chloride (NaCl)
100
what are the 2 types of glaciers?
alpine and continental
100
what are the 2 types of weathering?
physical and chemical
100
if a glacier carves a valley, what shape is it?
"U" shape
200
does the water cycle ever stop?
no
200
what is salinity?
the amount of salt dissolved in the water
200
the Antarctic ice sheet is an Alpine glacier (true/false, if false correct it)
false; it is a continental glacier
200
A cirque is the shape of a... (double points if you can tell us what part of a glacier it is and what is located between 3 cirques)
bowl; it is at the head of the glacier and a horn is located between 3 cirques
300
who are hydrologists?
people who study earth's water systems
300
what is the % of salt in ocean water?
35%
300
what is the origin of icebergs?
pieces of ice that break off from a glacier that reached the ocean
300
a land with many sinkholes is called...
krast
300
what agent of erosion pulls glaciers and moving water along?
gravity
400
What is the amount (%) of drinking water readily available to us humans
1%
400
Name 2 differences between salt water and fresh water
salt water is more dense than fresh water and salt water has a lower freezing point.
400
what is run-off and what pulls it along?
run off comes from melting snow and glaciers and is pulled along my gravity
400
what are 2 big agents of erosion?
moving water and glaciers
400
a sinkhole is created when...
a cave collapses in or the dissolved rock material lies close to the earth
500
why can we not drink most of the water found on earth; give 2 reasons why
we cannot drink most of the water found on earth because it is found in the oceans; making it salty and unable to drink; even though the rest is fresh water, most of the fresh water is frozen as ice near the north and south pole and you can't drink ice.
500
why can't you mine the ocean if there is gold in it?
Because the amount of gold in the ocean is so miniscule that you'd need to evaporate 250 000 tons of seawater for 1 gram of gold
500
what is a drainage basin?
an area of land that drains run-off into a body of water
500
name the process (in order) that it takes to brake down rocks
weathering, erosion, and deposition
500
how are caves formed? (details please)
rainwater mixes with Co2 in the atmosphere or from organic materials on the ground, forming a light acid called carbonic acid that will seep into pores and become groundwater. When the carbonic acid touches rocks with calcium carbonate in them, the acidic water starts dissolving the rock.