AQUATICS

UNIT 2

WATER P

ROPERTIES

NOTES

NITROGEN* #1 FERTILIZER

* _____ATE=SOLID WASTE

* ___ITE=LIQUID WASTE

* PLANTS MUST HAVE-MAIN FOOD-MAKES THEM GREEN

* LOTS IN THE AIR, BUT ANIMALS CAN’T CONVERT-ONLY LEGUMES=NITROGEN FIXATION

* TOO MUCH IS TOXIC=“BURN LAWN”

PHOSPHORUS

• #2 OF FERTILIZER• HELPS PLANTS BLOOM AND PRODUCE

FLOWERS AND FRUIT/VEGGIES• TOO MUCH CAUSES HIGH ALGAE

GROWTH WHICH STEALS O2 LEVELS FROM WATER

SEWAGE3 TYPES

ANIMAL WASTEDEBRISCHEMICAL

SPILLS ARE OBVIOUSLY TOXICRUNOFF IS A FORM OF SPILL

TEMPERATURE

• IS A CATALYST OF CHANGE FOR ALL WATER QUALITY VARIABLES• MOST IMPORTANTLY D.O. +

pH

BRACKISH* MIXTURE OF FRESH AND SALT WATER* WHERE RIVERS MEET THE

OCEAN=ESTUARIES* LARGEST NURSERIES ON EARTH

CAPILLARY ACTION* WATER PROPERTY THAT DEFIES GRAVITY* STRAW IN WATER* BECAUSE OF POLARITY-CAN “CLIMB-LIKE

CHAINS* HOW PLANTS GET WATER FROM ROOTS

TO THEIR TOP

BUFFER• WHAT IS ADDED TO A SOLUTION TO

BRING IT TO BALANCED• FIND OUT WHAT TO USE BY

MEASURING pH THE ACTION OF MEASURING THE pH IS TITRATION

WATERSHED• Land formations that cause water to

gather• Grapevine is a watershed to Bear Creek

which directly feeds into the Trinity River• Trinity River=longest interior river in

Texas, covers over 400 miles

SPECIFIC CONDUCTANCE* HOW MUCH ELECTRICITY WATER

CAN CONDUCT* MORE DENSE=INCREASED

CONDUCTIVITY* LIKE STEPPING STONES ACROSS A

RIVER

WATER DENSITY• D=M/V• MOST ABUNDANT LIQUID ON EARTH SO

MOST LIQUID DENSITIES ARE COMPARED TO WATER

• MEASURES HOW MUCH “STUFF” IS IN THE WATER

TITRATION• ACTION• TESTING TO FIND LEVEL OF ACID OR

BASE IN A LIQUID• Ph IS THE TOOL• BUFFER IS THE ADDITIVE TO

BALANCE

SURFACE TENSIONBECAUSE OF POLARITY, WATER

SITS LIKE A NETSMALL ENOUGH OBJECTS CAN

“STAND” ON THE NET

RUNOFF• NOT NATURAL EXCEPT ON CLAY=FLASH FLOODS• URBAN CAUSE=CONCRETE• PROBLEM=COLLECTS SEWAGE AND TAKES IT TO WATER

SOURCE

DISSOLVED OXYGEN

THE AMOUNT OF OXYGEN AVAILABLE IN THE WATER

MOST COMES FROM TURBIDITY AND PHOTOSYNTHESIS

MICKEY MOUSEBECAUSE OF ION CHARGES THE WATER

MOLECULE LOOKS LIKE MICKEY MOUSE

PESTICIDES* CHEMICAL AND NATURAL

METHODS TO KILL ANYTHING THAT BUGS YOU

* PROBLEM=RUNOFF AND LEACHING

TURBIDITYTHE TURNING OVER OF WATER

TO BREAK THE MOLECULES TO CREATE DISSOLVED OXYGEN

PH• MEASURES THE AMOUNT OF OH- (BASE)

OR H+ (ACID) IN A SOLUTION• LIVING ORGANISMS WANT TO BE AT 7• CAN ONLY SUSTAIN SMALL AMOUNTS OF

CHANGE OFF OF 7• USUALLY NO FURTHER THAN 6 OR 8

SEDIMENTA CONCERN WHEN IT IS

SUSPENDEDHARD FOR ORGANISMS TO

OBTAIN O2

MICROORGANISMS• TOO SMALL TO SEE WITHOUT ASSISTANCE• CATEGORIES•VIRUS-NONLIVING, USUALLY PATHOGENIC•BACTERIA-ITS OWN KINGDOM,

BENEFICIAL=DECOMPOSERS, PATHOGENIC IF IN EXCESS•PROTIST-OWN KINGDOM-SINGLE CELL,

PLANTS=ALGAE, ANIMAL