Chemistry Unit 1A Review Sources and Uses of Water.
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Transcript of Chemistry Unit 1A Review Sources and Uses of Water.
Chemistry Unit 1A ReviewChemistry Unit 1A Review
Sources and Uses of WaterSources and Uses of Water
Cleaning WaterCleaning Water FiltersFilters
– remove solid remove solid materialsmaterials
CharcoalCharcoal– removes odorremoves odor
DistillationDistillation– removes removes
salts/ions/charged salts/ions/charged particlesparticles
Tyndall EffectTyndall Effect Positive = see the light = particles in Positive = see the light = particles in
the path of the lightthe path of the light Negative = don’t see the light = no Negative = don’t see the light = no
particles presentparticles present
Conductivity TestConductivity Test Positive = conducts electricity =light bulb Positive = conducts electricity =light bulb
will lights up = charged particles/ions/salts will lights up = charged particles/ions/salts are presentare present
•Negative = light bulb doesn’t light up = no charged particles/ions/salts
Hydrologic CycleHydrologic Cycle Groundwater = storage = aquiferGroundwater = storage = aquifer Percolation pond = replenishes Percolation pond = replenishes
groundwatergroundwater
Evaporation
Gas state
Condensation
Liquid state
Water SourcesWater Sources San JoseSan Jose
– ground water (.62%)ground water (.62%) OtherOther
– Glaciers - 2.11%Glaciers - 2.11%– Lakes - .009%Lakes - .009%– Atomosphere - .001%Atomosphere - .001%– Rivers - 0.0001%Rivers - 0.0001%
Water UseWater Use Main uses of waterMain uses of water
– irrigation (in the west)irrigation (in the west)– heating/cooling (all others)heating/cooling (all others)
Personal UsePersonal Use•watering (1130 L/hour) ***•washing (180-680L/time)•showers/toilets (19L/min or flush) ****•drinking, cooking (varies)•about 300 L per day per person
Direct vs Indirect Uses of Direct vs Indirect Uses of WaterWater
Direct = used “last”Direct = used “last”– boiled egg = water boiled inboiled egg = water boiled in– soup = water in soupsoup = water in soup
Indirect = used before, not Indirect = used before, not always by personalways by person– boiled egg = water for chicken, boiled egg = water for chicken,
grain, truck, cartongrain, truck, carton– soup = water for can, chicken, soup = water for can, chicken,
grain, processing, labelgrain, processing, label