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(MUSIC)

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JOAN CARTAN-HANSEN: HI, I'M

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JOAN CARTAN HANSEN.

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AND WELCOME TO SCIENCE TREK

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THE WEB SHOW.

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AND WELCOME TO THE BOISE

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WATERSHED ENVIRONMENTAL

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EDUCATION CENTER.

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HERE YOU CAN LEARN HOW TO

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CONSERVE AND PROTECT THE

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WATER.

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AND JOINING ME NOW TO ANSWER

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YOUR QUESTIONS ABOUT WATER ARE

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JAN BOLL AND SARAH GODSEY.

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THANK YOU BOTH FOR BEING HERE.

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SARAH GODSEY: THANKS VERY

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MUCH.

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JAN BOLL: THANK YOU VERY MUCH.

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HANSEN: OKAY LET'S GO TO YOUR

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QUESTIONS.

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(MUSIC) ALYSSA: HI, MY NAME IS

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ALYSSA AND I GO TO ADAMS

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ELEMENTARY.

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WHY IS MY DRINKING WATER

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CLOUDY?

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GODSEY: SO IT MAY BE THAT YOUR

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DRINKING WATER IS CLOUDY

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BECAUSE YOU HAVE A LITTLE

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FILTER ON THE END OF YOUR

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FAUCET THAT IS USED TO ADD AIR

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TO YOUR WATER AND SLOW DOWN

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THE FLOW A LITTLE BIT, AND

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THOSE AIR BUBBLES THAT ARE

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ADDED TO YOUR, TO YOUR WATER

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IN THAT PROCESS CAN SOMETIMES

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MAKE IT LOOK REALLY CLOUDY,

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BUT IF YOU LET IT SIT FOR A

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LITTLE WHILE THEN THE AIR WILL

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COME OUT AND THE BUBBLES WILL

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COME TO THE SURFACE AND IT

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WON'T LOOK CLOUDY ANYMORE.

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ON THE OTHER HAND, YOU MAY

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HAVE OTHER CONSTITUENTS THAT

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ARE IN YOUR WATER, OTHER

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CHEMICALS THAT MIGHT MAKE IT

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LOOK CLOUDY, AND THAT MIGHT BE

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BECAUSE YOU HAVE RELATIVELY

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HARD WATER, OR THAT THERE MAY

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BE OTHER CHEMICALS THAT ARE IN

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YOUR WATER.

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SO IT MIGHT BE A GOOD IDEA TO

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ASK YOUR PARENTS WHAT, WHAT

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THEY THINK IS IN THE WATER.

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OR TO LOOK AT THE REPORT THAT

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YOU CAN GET, IF YOU'RE ON CITY

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WATER, OR IF YOU HAVE YOUR

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WATER TESTED, YOU CAN LOOK AT

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YOUR REPORT AND SEE WHAT IT IS

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THAT'S IN YOUR WATER THAT

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MIGHT MAKE IT LOOK CLOUDY.

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ELLA: HELLO, MY NAME IS ELLA

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AND I AM FROM BASIN

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ELEMENTARY.

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MY QUESTION IS HOW DOES WATER

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POLLUTION AFFECT HUMANS?

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BOLL: ALL RIGHT SO WATER

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POLLUTION, AGAIN, IS A VERY

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BROAD TERM.

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I WOULD THINK THAT IF YOU ARE

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INHALING WATER, WHICH IS THE

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ONE WAY THAT YOU CAN BE

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AFFECTED BY IT, YOU DON'T WANT

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FOREIGN SUBSTANCES IN YOUR

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BODY.

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AND FOREIGN SUBSTANCES COULD

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BE CHEMICAL CONSTITUENTS, BUT

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IT CAN ALSO BE BIOLOGICAL

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CONSTITUENTS.

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ONE SIMPLE EXAMPLE IS A SMALL

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PATHOGEN THAT IS CALLED

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CRYPTOSPORIDIUM OR ANOTHER ONE

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IS LIKELY SMALLER GIARDIA.

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IF WE GET THOSE IN OUR SYSTEM,

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WE ARE GETTING, YOU KNOW, AN

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UPSET STOMACH TO CALL IT

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LIGHTLY AND THOSE ARE REALLY,

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REALLY NOT FUN FOR US.

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BUT IF WE ARE HEALTHY PEOPLE,

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IN THOSE CASES WE MIGHT HAVE A

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LITTLE TROUBLE WITH OUR STOOL,

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BUT IF WE ARE COMPROMISED

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PEOPLE MAYBE THE CANCER

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PATIENTS OR WE HAVE OTHER

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DISEASES, THEN IT MIGHT

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ACTUALLY KILL US.

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AND SO THOSE ARE REALLY SCARY

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ONES.

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CHEMICAL CONSTITUENTS CAN

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CAUSE PROBLEMS, BUT THEY DO IT

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TYPICALLY ON THE LONGER TERM,

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SO WE MIGHT NOT IMMEDIATELY

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NOTICE THAT WE HAD A PROBLEM

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IN, IN SOME OF THE FOOD OR THE

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DRINK THAT WE, WE TOOK IN.

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BUT, AND STUDIES DON'T HAVE

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CONCLUSIVE EVIDENCE AS TO WHEN

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THIS HAPPENS, SOME PEOPLE ARE

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MORE SENSITIVE TO IT THAN

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OTHERS.

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NOW OTHER WAYS THAT WATER CAN

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HURT US IT THROUGH OUR SKIN,

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SO SOME PEOPLE HAVE VERY

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SENSITIVE SKIN TO CONSTITUENTS

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IN THE WATER AND THEN IT'S ON

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A PERSON BY PERSON BASIS AS TO

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WHEN THAT STARTS HITTING US.

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NOAH: HELLO MY NAME IS NOAH

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AND I GO TO ADAMS ELEMENTARY.

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MY QUESTION IS WHERE DOES

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WASTE WATER GO?

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GODSEY: SO IT REALLY DEPENDS

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ON WHERE YOU LIVE.

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IF YOU LIVE IN A CITY WITH A

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SEWAGE TREATMENT PLANT, THEN

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YOUR WATER WILL GO INTO THE

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SEWAGE SYSTEM AND THEN MAKE IT

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TOWARDS THE WASTEWATER

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TREATMENT PLANT AND BE TREATED

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THERE SO THAT IT CAN REMOVE

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PATHOGENS AND THINGS THAT CAN

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CAUSE PROBLEMS FOR THOSE WHO

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ARE DOWNSTREAM OF YOU.

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IF YOU LIVE IN A PLACE WHERE

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YOU HAVE A SEPTIC SYSTEM, THEN

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YOUR WATER WILL GO DOWN INTO

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YOUR SEPTIC SYSTEM AND SLOWLY

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FILTER THROUGH THAT SEPTIC

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SYSTEM IN ORDER TO TRANSFER

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THE, OR TRANSFORM THE

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MATERIALS THAT ARE COMING OUT

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THROUGH YOUR WASTE INTO A FORM

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THAT'S LESS, LESS TOXIC TO

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OTHER THINGS THAT ARE

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DOWNSTREAM OF YOU.

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SO, THERE ARE A FEW PLACES

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ACROSS THE WORLD THAT DON'T

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HAVE ANY WATER TREATMENT AT

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ALL, AND SO, IN THAT CASE,

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WHEN THERE'S WASTE IT JUST

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GOES INTO THE RIVER OR INTO

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THE WATER BODY OR INTO THE

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GROUND DEPENDING ON, ON WHERE

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YOU, WHERE YOU'RE AT.

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KAYLYNN: HI MY NAME IS KAYLYNN

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AND I AM FROM BASIN

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ELEMENTARY.

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MY QUESTION TODAY IS WHY IS

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WATER GOOD FOR HUMANS?

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BOLL: WATER IS GOOD FOR HUMANS

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AS IT IS GOOD FOR PLANTS.

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WE RELY ON WATER TO DO A LOT

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OF FUNCTIONS, BODILY FUNCTIONS

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THAT ARE GOING TO KEEP US

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GOING AND WE SHOULD, WE CAN

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LOOK AT A PLANT AS AN EXAMPLE

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AS TO WHEN, IF WE DON'T GIVE

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IT ANYMORE WATER IT'S GOING TO

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LOOK VERY UNHAPPY.

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WELL, INSIDE OUR BODIES IS A

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SIMILAR SITUATION.

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AND I'LL GIVE YOU ONE EXAMPLE,

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ONE FUNCTION OF WATER IN OUR

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BODIES IS TO CARRY AWAY OUR

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WASTE, YOU MIGHT UNDERSTAND

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THAT WHEN YOU GO TO THE

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BATHROOM.

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WELL THAT IS AN IMPORTANT

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FUNCTION, IF WE STOPPED

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INHALING WATER, OUR WASTE

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CANNOT BE CARRIED AWAY AND OUR

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BODIES GET KIND OF TOXIC AND

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WE GET SICK.

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MILEY: HI MY NAME IS MILEY AND

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I GO TO ADAMS ELEMENTARY.

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MY QUESTION IS WHAT IS

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ARTESIAN WELL WATER?

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GODSEY: THE SPECIFIC WORD

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ARTESIAN REFERS TO WATER THAT

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COMES TO THE SURFACE OF THE

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EARTH WITHOUT US HAVING TO PUT

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IN THE EFFORT TO PUT IN A

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PUMP.

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AND SO, WHAT THAT MEANS IS

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THAT THERE'S GOT TO BE ENOUGH

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PRESSURE IN THAT WATER SYSTEM,

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UNDERGROUND TO SEND THE WATER

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ALL THE WAY UP TO THE SURFACE,

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OR EVEN ABOVE THE SURFACE OF

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THE EARTH.

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AND THAT CAN HAPPEN IN SOME

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PLACES IF THE AREA THAT'S

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RECHARGING OUR GROUNDWATER

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SYSTEM IS PRETTY HIGH UP ON A

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MOUNTAIN, SO THAT THERE'S A

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LOT OF ENERGY THAT CAN HELP TO

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DRIVE THAT PRESSURE UP AND

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BRING THE WATER UP TO THE

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SURFACE.

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(MUSIC) HANSEN: AVERY WOULD

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LIKE TO KNOW, "IS SALT WATER

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HARMFUL TO PLANTS?"

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BOLL: SO THE WATER THAT WE SEE

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GOING INTO THE PLANTS GOES

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INTO THE CELLS OF THE PLANTS.

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AND THESE CELLS HAVE A CERTAIN

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AMOUNT OF SALT IN THEM TO BE

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ABLE TO FUNCTION, RIGHT?

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WE HAVE SALT IN OUR SYSTEM, IN

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OUR HUMAN BODIES TOO.

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IF YOU PUT A LOT OF SALT

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INSIDE THE PLANT EVENTUALLY

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YOU GET A DIFFERENCE IN

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CONCENTRATION IN THE CELLS AND

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WHAT'S OUTSIDE THE CELLS.

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AND AT THAT POINT, THE CELLS

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ARE GOING TO CONTINUE AND

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CONTINUE TO ABSORB MORE AND

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MORE WATER BECAUSE THEY WANT

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TO BALANCE IT WELL.

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OKAY, IF TOO MUCH WATER GOES

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INTO THOSE CELLS YOU GET A

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SITUATION CALLED TURGOR AND IT

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ACTUALLY EXPLODES THE CELLS.

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SO IT'S NOT A GOOD IDEA FOR

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THAT TO HAPPEN.

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NATALIE: HELLO MY NAME IS

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NATALIE AND I'M FROM BASIN

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ELEMENTARY.

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MY QUESTION TODAY IS HOW LONG

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DOES IT TAKE TO PURIFY WATER?

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GODSEY: IT TAKES A DIFFERENT

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AMOUNT OF TIME DEPENDING UPON

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HOW DIRTY THE WATER IS TO

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BEGIN WITH.

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SO IF WE START OUT WITH REALLY

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CLEAN WATER THEN IT WON'T TAKE

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MUCH EFFORT AT ALL.

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ON THE OTHER HAND IF WE HAVE

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REALLY, REALLY POLLUTED WATER

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WHERE THE AMOUNT OF MATERIAL

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THAT'S IN THE WATER THAT MAKES

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IT, THAT MAKES IT UNSAFE FOR

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US IS VERY HIGH THEN IT'LL

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TAKE A LOT LONGER.

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IT DEPENDS A LOT; THE AMOUNT

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OF TIME IT REALLY TAKES TO

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CLEAN UP WATER DEPENDS A LOT

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ON THE DIFFERENT KINDS OF

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TECHNIQUES THAT WE COULD USE.

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SO SOMETIMES WE FILTER IT, AND

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THEN IT JUST DEPENDS ON HOW

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QUICKLY IT MOVES THROUGH THAT

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FILTER.

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OTHER TIMES WE MIGHT TRY TO

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ACTUALLY DISTILL IT, IN OTHER

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WORDS, HEAT IT UP AND TURN IT

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COMPLETELY INTO THE VAPOR

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PHASE AND THEN ALLOW THAT

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VAPOR THEN TO COOL DOWN AND

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REFORM AS LIQUID WATER; AND

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THAT CAN TAKE LONGER DEPENDING

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ON HOW MUCH ENERGY WE HAVE

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AVAILABLE TO ACTUALLY CLEAN UP

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OUR WATER.

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LUKE: HELLO MY NAME IS LUKE

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HARSH, I GO TO ADAMS

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ELEMENTARY, AND MY QUESTION IS

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DOES COLD WATER OR HOT WATER

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BOIL FASTER?

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BOLL: SO LETS START WITH WATER

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AT A RELATIVELY LOW

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TEMPERATURE; WE NEED TO ADD

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ENERGY TO IT TO MAKE IT REACH

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THE BOILING TEMPERATURE,

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RIGHT.

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SO IF WE ALREADY HAVE WATER

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THAT'S HOT, THEN WE SHOULD

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00:08:09,189 --> 00:08:11,224
REALLY HAVE TO ADD LESS ENERGY

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00:08:11,324 --> 00:08:12,926
TO THAT WATER THAN TO THE COLD

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00:08:13,026 --> 00:08:14,427
WATER TO REACH THE SAME

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TEMPERATURE.

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SO YEAH THE COLD WATER WOULD

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NEED A LOT MORE ENERGY ADDED

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TO MAKE IT BOIL.

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HANSEN: I'M SORRY WE'VE RUN

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OUT OF TIME.

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MY THANKS TO JAN AND SARAH FOR

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ANSWERING TODAY'S QUESTIONS.

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BOLL: THANK YOU IT WAS A

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PLEASURE.

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GODSEY: THANKS VERY MUCH.

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HANSEN: MY THANKS ALSO TO THE

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FOLKS HERE AT THE BOISE

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00:08:32,679 --> 00:08:33,947
WATERSHED ENVIRONMENTAL

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00:08:34,047 --> 00:08:35,915
EDUCATION CENTER FOR HOSTING

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00:08:36,016 --> 00:08:37,083
US.

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IF WE YOU WANT TO LEARN MORE

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00:08:38,184 --> 00:08:38,985
ABOUT THIS TOPIC, CHECK OUT

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00:08:39,085 --> 00:08:39,953
THE WATER AREA ON THE SCIENCE

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00:08:40,053 --> 00:08:40,954
TREK WEBSITE, YOU'LL FIND

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FACTS, LINKS, GAMES, OUR WATER

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00:08:42,022 --> 00:08:42,989
BROADCAST SHOW AND LOTS MORE.

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00:08:43,089 --> 00:08:44,491
AND EVERY WEEK, CHECK OUT MY

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00:08:44,591 --> 00:08:45,592
BLOG FOR THE LATEST SCIENCE

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00:08:45,692 --> 00:08:47,227
NEWS FOR KIDS.

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YOU'LL FIND IT ALL, AT

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IDAHOPTV.ORG.

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THANKS FOR JOINING US FOR

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00:08:51,664 --> 00:08:54,667
SCIENCE TREK THE WEB SHOW.

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(MUSIC)