fresh and saltwater systems

if the earth is full of water, why do we worry about conserving water

if the earth is full of water, why do we worry about conserving water

because most of earths water is salt water, which is not safe to consume

why humans can’t drink salt water

• the salt can affect your blood, which dehydrates your cell

• kidneys filter it out, more water comes in then out

ways we use fresh water

• to consume

• hygiene

• cooking

• cleaning

manufacturing

• 64% of water in Canada is put towards it

• Ex: making tires, 148000L

agriculture

• Ex: 11L for one serving of lettuce

personal use/non industrial

• 12% of water in Canada is put towards it

• Ex: washing hands

water use on Calgary

• uses 231L a day

• small supply of water

• uses river water

Glaciers

Large, thick mases of ice that form on land and must move

renewable water

replenished from precipitation 

Groundwater

Fresh water found underground in spaces between particles de rock and soil or in crevices and cracks in rock

Portable water

Drinking water

Storm water

water from rainstorms of melting snow that goes into the storm drains in the road through underground pipe system

waste water

All water that is flushed down toilets, drained from bathtubs, doing dishes. goes into sewage collection system and re used

Basins

• depression or dip in the earths surface

• above the ground from erosion or glacial activity

• below ground like tectonic plates

• ocean basins are the largest depression on the earth

• continental shelves form sides of oceans

tectonic plates

• responsible for interesting physical features of ocean floor

• earths crust is separated by them

convection currents

in earths mantle which cause tectonic plates to move over time

oceanic and continental plates

oceanic are denser than continental plates

convergent boundary

• tectonic plates converge

• denser plate pushed below other

divergent boundary

• tectonic plates diverge

• magma from mantle rises up to create ocean ridges or a new sea floor

ocean current

• body of water moving a certain direction

• surface winds and density drive the formation of them

gyre

• large system of rotating ocean currents

• permanent

• span entire ocean basins

temperature

if temperature increases, water expands, and density decreases

salinity

if salt increases the density increases

global convey or belt

difference in density and temperature create this current system

currents and ecosystems

move heat, nutrients, and oxygen

upwelling

push up cold, nutrient rich water to the top of ocean

currents and climate

• water has high heat capacity, holds a lot of heat

• transfers high thermal energy to low thermal energy