Water Filter Study - Students' Perspective |
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| Student ID # | Thinkwrite Scenario - Pre-write | Questions after investigation | Thinkwrite Scenario - Post-write |
Discussion Topic Standards: “Students know and are able to explain the relationship that ground water has in the water cycle.” (Standard 4.3.b in the Colorado Assessment Frameworks-at-a-Glance) “Technologies can be used to repair damage caused by natural (or man-made) disasters and to break down waste from the use of various products and systems.” (Standard 5E in the Standards for Technological Literacy, ITEA, p. 69) Hypothetical Scenario: A reservoir supplying water to the water treatment plant in Lafayette is contaminated when an 18- wheeler semi truck transporting hazardous material crashes into it. Question: As a member of the city’s environmental science and engineering team, what are your recommendations to the Operators at the Lafayette Water Treatment Plant? Created By Nathan Balasubramanian 04/17/06 02:39AM |
Discussion Topic Based on your experiments and modifications with test-filters in your class, what QUESTION(S) or further INVESTIGATIONS interest you? Created By Nathan Balasubramanian |
Discussion Topic Standards: “Students know and are able to explain the relationship that ground water has in the water cycle.” (Standard 4.3.b in the Colorado Assessment Frameworks-at-a-Glance) “Technologies can be used to repair damage caused by natural (or man-made) disasters and to break down waste from the use of various products and systems.” (Standard 5E in the Standards for Technological Literacy, ITEA, p. 69) Hypothetical Scenario: There was a mudslide upstream in the water plant and a water plant operator noticed high turbidity and colored water coming into the water treatment plant. Created By Nathan Balasubramanian |
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Grade 8 Responses (unedited student comments) |
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| Student 31 | (Posted 04/17/06 08:56AM) First the water treatment plant should send out a warning to the people that the water is contaminated and not to drink it for 24 hours while they clean up the water. | (Posted 05/15/06 08:59AM) This experiment has made me think of how the cotton needs to be compressed and the flow rate of the filters. 1. How do you get a better flow rate on the filters? 2. How do you compress the cotton so your water is clearer? | (Posted 05/24/06 09:30AM) My recomendation to the water treatment plant is to filter the water with cotton and sand, gravel, carbon, and other matterials to clean the water |
| Student 8 | (Posted 04/17/06 08:57AM) Before taking action to clean the water, the resevoir should be quarantined and only professionals should be allowed to study it. The semis should be removed from the lake if it is deemed safe after the material is determined, and then actions should be taken to filter the polluted water in the resevoir. |
(Posted 05/15/06 09:06AM) While designing my filter, a number of questions entered my mind. They include the following: 1. If activated carbon is such an expensive part of filtering water, is there a cheaper alternative that has the same cleaning properties? 2. Does the order of our components affect the flow-rate of our water at all? 3. What is the most effective way to decrease turbidity? | (Posted 05/24/06 09:30AM) Were I to make a recommendation to the operator of the Water Treatemt Plant, I would tell him that as long as the water is muddy and colored, he should change to a backup resevoir, such as Goosehaven. While the other resevoir is in use, the mud in the first water supply would settle at the bottom of the water. When a reasonable amount of time has passed for the dirt to settle, they can switch back to the first and main water supply. |
| Student 4 | (Posted 04/17/06 08:57AM) I would recommend that they close down the water treatment plant so they can make sure that the water is safe to drink. They probably already have all the equipment needed to treat the contaminated water. They would have to do it fast so Lafayette has fresh water that is safe and uncontaminated so they don't get sued for like malpractice or some stuff like that stuff in Erin Brochovitch....lol jk |
(Posted 05/15/06 09:11AM) The questions that these experiments have triggered with me are: 1) Why don't they use different materials within the filter instead of using other ones that are also cheap but are more like modern. Like using more chemical type materials to filter out the water instead of using gravel and rocks to do it. 2) Is pool filtered water drinkable since it is filtered? Or what about chlorine, can it filter water that can be drunk or ingested? | (Posted 05/24/06 09:32AM) I would tell him to wait and not let water come into the plant and use the backup water that they have and wait till the dirt settles so that it will not get onside the plant as such a contaminated substance. When the dirt settles turn let the water in again. So that water would not be as contaminated as it was when the mud was in it. That is what I would tell the water treatment plant operator. I also think that he should lose his job cause who wouldn't think of that and with all that school personally I would fire him. |
| Student 52 | (Posted 04/17/06 08:58AM) It all depeends on what the hazardes matirial is because it could be leathel or it couldnt if it was leathel we would need to take quick action and get rid of |
(Posted 05/15/06 09:21AM) The question had was 1.Does the order you put the matireals in affect the outcome and if it does is there an order you have to put them in to make water the cleanest. 2.what kind of matireals will u need to reduce turbidity at the same time not being to big? 3 is there a way for a filters to filter water out perfectly? 4. in the experiment we had to do with the electric stuff why is it that when we put the two wires in the water it didnt make an explosion | |
| Student 41 | (Posted 04/17/06 08:58AM) Try cleaning the water out by using what ever is necessary! |
(Posted 05/15/06 09:58AM) 1. Was there any posific order of the materials? 2. What material cleans the water the most? | |
| Student 42 | (Posted 04/17/06 08:58AM) They need to warn the city concel, and the people of the city not to go near
the reservoir, and than once they cler it off, they need to refilter thr water,
or transropot new water. They also need to keep cars (esipacally semis) |
(Posted 05/15/06 09:02AM) I have thought of how acctavated carbbon can make a huge difference in how drinkable the water is, and ive also realized that cotten produces clearer water. 1. Can you make another fillter from held objects. | (Posted 05/24/06 09:28AM) you need to take 2 plastic cups, in the first cup place cotten, actavated carben, than another layer of cotten. after that place sand, rocks, and some gravel, in that order. than place the second cup under the first and jus fill it with cotten. (Posted 06/05/06 06:39PM) i would tell him to backwash the water, than to get a new filter, or fix the dameged one if posable, and i would than inform other resadence that the water is bad. i would than hav to also help the animales and make shure they dont get in the way. and than i would explane to him he must just let the gravity flow send the rest of the mud down. |
| Student 6 | (Posted 04/17/06 08:58AM) 1) If the material is flamible then you light the reservoir on fire. The flame will burn off all of the hazardouse material. 2) In some cases we could put geneticaly engineered bacteria in the water to eat the chemical, or we could create an enzyme to disolve the material. |
(Posted 05/15/06 09:13AM) 1) I would like to Know what outside materials we could have used to pass the turbidity test? 2) Was the cost racio for our expieriment accurate to a real water treatment plant, if not how much do all these materials cost? 3) How does the order of the matrerials affect the outcome, is there a certain way that makes the water the cleanest? | (Posted 05/24/06 09:37AM) first i would go to the bac -up water supply at Goosehaven resevoir. Then i would have him shut down one filter and load it with even more compacted cotton. After i had done i would have him divert that filter to filter from baseline. Using this process you could keep producing water minus the one filter. |
| Student 40 | (Posted 04/17/06 09:01AM) My recommendations is to emty out all the water and clean out all the trash and let the reservoir sit in the sun for a cuple of days to let it drain out and let all the bactira escape. Then after a cuple of days fill the reservoir back up with clean waater. |
(Posted 05/15/06 09:18AM) The question I have is what is the easest way to build the filter so I can pass all of the test? Anouther question is how do you make the filter so that the water comes out clean, so that it tastes like water, and it dosen't have any gems and it's safe to drink and won't get sick from the water? | (Posted 05/24/06 09:33AM) My recommendation for him would to stop the water plant and rhen start the cleaning process. If the water is not clean after running it through the cycle then the only other thing to do is sut down the place for a cuple of days while you emty out the water filter and clean it and start all over again. |
| Student 19 | (Posted 04/17/06 09:02AM) First they should close down the water treatment plant, then the resevoir should be closed to the public so that specialists can study it and determine what has been spilled and how the problem should be resolved. |
(Posted 05/15/06 09:16AM) This investigation and design activity has triggered a lot of questions in me as I was building my filter. Most of them were about the order of the materials in my filter. Would it affect how clean my water is after it traveled through my filter if I didn't put one of the basic materials in, like cotton? How would it affect the water if I put the rocks in before the sand ? What might happen if I put in too much sand, or none at all? I was also thinking about how much more of each material it would take to completely and successfully fill a full size filte, using the same materials as we did in our test-filters. The last question that came to mind was if I will be able to replace any materials with some other material, but still have the water be as clean as before, or cleaner? | (Posted 05/24/06 09:28AM) I would tell them to check their filter and fix any prooblems with it. |
| Student 32 | (Posted 04/17/06 09:02AM) use bottled water cause it works better then filtering out ALL the water in lafayette and refilling all the resovors | (Posted 05/15/06 10:12AM) how does the carbon take away all the like bad tastes and things like that? | (Posted 05/24/06 09:19AM) i would tell him to like build a new water filter and like after that to put the water in the filter and clean it out then he can use the water!! |
| Student 55 | (Posted 04/17/06 09:04AM) i would clean the water nd what i mean is taking out the chemicals. it can be possible to do this. They need to tell someone about his like the city council. the bacteria needs to flood out of the water so it can be clean and safe for enviroments. i say that anything with pollution should stay away from the conaminated area. | (Posted 05/15/06 09:18AM) .::.~1~ .::.why is there such thing as filters??~.::. .::.~.::.~2~.::. did the experiment work??~.::. .::.~.::.~3~.::. was the water clean??~.::. .::.~.::.~ 4~.::. was there enough sand to filter the water?? ~.::. .::.~.::..~5~ .::. did we need more layerz?~.::. .::.~ | (Posted 05/24/06 09:31AM) .::.I WOULD SAY TO BULID A NEW FILTER.bECUZ THE WATER NEEDS TO BE CLEAN IF THEY GET A NEW FILTER THE WATER WOULD BE CLEANN THE WATER IS DIRRTY.::. |
| Student 35 | (Posted 04/17/06 09:06AM) I recommend that they clean the water | (Posted 05/15/06 09:18AM) 1> Did the experiment work? 2> was the water clean? 3>was there enogh sand or cotton to filter the water? 4>Did we need more layers? 5>why is there filters? | (Posted 05/24/06 09:32AM) the water filter is geting dirty and it needs to be change |
| Student 51 | (Posted 04/19/06 09:25AM) clean the water and take otu all the chemicals then tell somebody about it so it does not happen gain | ||
| Student 56 | (Posted 05/15/06 09:10AM) The questions that have triggered in me from the experiments and modifications we made to our test-filters are as follows: 1.) What type of material will reduce turbidity the most effeciantly and accurelety with out being too large or hard to use? 2.) How can you maintain a stable and fast flow rate, without compromiseing contaminents or other problems such as turbidity? 3.) Is there anyway to increase the flow rate by putting preasure on or around the filter, or compressing the filter itself?, and if squeezing the sides or any other structral support of the filter would compromise cleaning or be negative in any other way. | (Posted 05/24/06 09:36AM) My recommendations would be to switch reseivours if they could, then work on letting all that mud and stuff settle, then i would tell them to work on constructing or adding on to their filters to make them be more usefull in clearing turbidity and such with more fine sand and stuff to take out the high levels of turbidity. |
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| Student 48 | (Posted 05/24/06 09:29AM) I would teel thepeeps that they should take out the water and the mud. But can you die from the mud slide? | ||
| Student 43 | (Posted 05/24/06 09:31AM) The filter is not working.So you need to construct a better filter so the water can pass to the new filter clean. | ||
Grade 6 - Section 1 Responses (unchanged from the original) |
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| Student 7 | (Posted 04/17/06 02:35PM) I think that the truck should bring a water filter, to filter out the resivour | (Posted 05/15/06 02:39PM) What if you pour in the wrong chemicals? (Posted 05/15/06 02:42PM) wouldnt the dirt materials that you use to filter the water make it even more dirtier? (Posted 05/15/06 02:44PM) What if you filtered the water all the way through, but it still came out dirty? (Posted 05/15/06 02:49PM) What do you guys do if there is a nuclear pollutant in the resivour? (Posted 05/15/06 02:50PM) Is working at a water treatment plant a hard job? (Posted 05/15/06 02:54PM) Devyn is wondering why you wanted to work at a water treatment plant? | (Posted 05/24/06 02:38PM) I would get a fish net and scrap out the mud! (Posted 05/24/06 02:41PM) I would tell them not to let anymore water enter into the plant, so that we would have time to clean it out, and so that no more water would get contaminated (Posted 05/24/06 02:45PM) I would close down the filter for a whil |
| Student 34 | (Posted 04/17/06 02:36PM) Filter the water, so the people won't get sick. | (Posted 05/15/06 02:40PM)How long does it take to clean the water for the community? How many times do you test the filters to see when the water is clean? | (Posted 05/24/06 02:41PM) I would tell him to get something to scrape the mud out of there |
| Student 44 | (Posted 04/17/06 02:37PM) what i would do is i would try getting as much people as i can and try to get it cleaned up and tell the people not to dump their stuff in our water treatment plant. (Posted 04/17/06 02:49PM) maddy is right because everyone does need a water filter for their water (Posted 04/17/06 02:50PM) water filters are good for our water | (Posted 05/15/06 02:41PM) why couldn't anybody pass the turbitity test? (Posted 05/15/06 02:43PM) how can we get the water clean enough to pass the turbitity test? (Posted 05/15/06 02:45PM) are we going to do anything else that has to do with filters? (Posted 05/15/06 02:48PM) does it tke more than once just to make the water clean sometimes? | (Posted 05/24/06 02:41PM) i would tell him to get a truck and start to remove the mud and then i would tell him to get the fish out of the treatment plant. then i would tell him to let the dirt settle and then take it out. after he did that i would tell him to filter the water in the plant. (Posted 05/24/06 02:41PM) to get a better filter so then the water is cleaner then before. (Posted 05/24/06 02:43PM) i would get better materials then the ones before for the filter |
| Student 3 | (Posted 04/17/06 02:39PM) The water needs to be filtered. | (Posted 05/15/06 02:40PM) My question would be: What material(s) would you put in a water filter to pass the turbidity test? How would you make the water clear? | (Posted 05/24/06 02:41PM) They should discontinue that filter and use another until there isn't the muddy problem. |
| Student 13 | (Posted 04/17/06 02:39PM) filter the water or drain it some how. | (Posted 05/15/06 02:50PM) what is the average time a filter lasts without being cleaned? (Posted 05/15/06 02:57PM) what is the average speed of a filter? | |
| Student 45 | (Posted 04/17/06 02:40PM) Filter the water to make it safe for people to drink. (Posted 04/17/06 02:52PM) I agree with everyone who says people need water filters because it keep the drinking water safe and clean for people to drink. (Posted 04/18/06 03:25PM) I agree with the people who say that we should filter the water to make it clean and safe for people to drink so poele won't get sick. | (Posted 05/15/06 02:50PM) I was wondering how come we can see the laser through the dirty water and not through the clean water? | (Posted 05/24/06 02:43PM) my recommendation is that I would shut down the water plant for a few days and get rid of the dirty water and filter the water with cotton and sand, gravel, carbon, and other materals that are used to clean the water and if that doesn't work replace the filter with a new one . |
| Student 36 | (Posted 04/17/06 02:40PM ) i think that people should always have a water filter. (Posted 04/17/06 02:48PM) everyone should always have a water filter (Posted 04/17/06 02:50PM) well u would not live if u drank non-filtered water (Posted 04/17/06 02:51PM) no if u had the money to buy all the water then buy a filter | (Posted 05/15/06 02:43PM) Also what would happen if you were to take the chemicals and they would go though the filter but still had chemicals in it after it wet though (Posted 05/15/06 02:50PM) How many filters does the water have to go through before the water is sent to drink? (Posted 05/15/06 02:56PM) What are the orders of filters? like are there many different sizes? (Posted 05/15/06 02:58PM) That would be very cool to work at a water plant because u could be able to answer HARD things. | (Posted 05/24/06 02:40PM) I would try to build another filter but to make it a lot stronger than normal so it could get the mud out. (Posted 05/24/06 02:43PM) i think i would get a hose with a mini filter and then fun it through so only the dirty water goes through and not the mud! |
| Student 23 | (Posted 04/17/06 02:42PM) u should emtey it and while doing that filter it then when u are done poor the water back in the resivour | (Posted 05/24/06 02:39PM) i would say dont let any more water trought the filter get more carbon and rerun the water throught the filter |
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| Student 53 | (Posted 04/17/06 02:42PM) you should try to raise money to get the truck fixed for the water (Posted 04/17/06 02:43PM) but why would everybody want to have a water filter? (Posted 04/17/06 02:44PM) Ya justin is right every day we all use to much water on things we don't need (Posted 04/17/06 02:45PM) sam we are trying to figure out wa way to kepp the water filtered (Posted 04/17/06 02:47PM) Daniel y would u get everybody out of town because of water, because almost everywhere they go there is water somewhere (Posted 04/17/06 02:50PM) People should raise money so everyone can afford a water filter (Posted 04/17/06 02:51PM) Ya Maddie is sorda right except not everyone in the world can afford to have a filter (Posted 04/17/06 02:53PM) We should try to help people afford water filters in their houses :-) (Posted 04/26/06 03:24PM) everyone cant afford a filter (Posted 04/26/06 03:25PM) if the people cant afford the filters the city should start a fundraiser to buy the people who can't afford a filter filters (Posted 04/28/06 01:09PM) people in the town should atleast try to help otheres afford filters | (Posted 05/15/06 02:38PM)why does the coarbon take out the color? (Posted 05/15/06 02:40PM) how can the cotton act as a screen for the filter? (Posted 05/15/06 02:43PM) why does the orange paper change color when you put it in the water? (Posted 05/15/06 02:44PM) if you put to much materials in the filter can it affect it? (Posted 05/15/06 02:47PM) how does the filter clean all of the dirty water and make it clean when your using materials that make normal`water dirty? do you have tooers of the water treatment plant? if so on what days and if not why not have tooers i am so intreaged that i would like to see the water traetment plant. (Posted 05/15/06 02:48PM) why did we do the filters in the first place? (Posted 05/15/06 02:51PM) where does the dirty particles go after its been filtered and seperated from the clean water? (Posted 05/15/06 02:53PM) how much does it cost to repair the water filter if broken? Who pays for it? | (Posted 05/24/06 02:37PM) put carbon in the water to remove the color (Posted 05/24/06 02:38PM) you should figure out a way to remove the mud out of the water (Posted 05/24/06 02:40PM) filter all the water a couple of times until you know for sure it's clean. (Posted 05/24/06 02:41PM) stop the flow rate and take the mud out and filter the water a couple of times (Posted 05/24/06 02:45PM) if you stop the flow rate that could make a bigger problem (Posted 05/24/06 02:47PM) you should suck up all the water and put it in a filter and then when your sure it's clean put t back (Posted 05/24/06 02:48PM) you should put like a screen thing that will suck up the bacteria and mud and then dispose it (Posted 05/24/06 02:49PM) you should atleast try to stop the flow rate |
| Student 16 | (Posted 04/17/06 02:42PM) we should only use the water we need (Posted 04/17/06 02:43PM) after all there is a drout (Posted 04/17/06 02:46PM) we should have cirtain water for watoring grass and cleaner for drinking (Posted 04/17/06 02:47PM) some people cant aford a water filter (Posted 04/17/06 02:48PM) i cant aford a water filter (Posted 04/17/06 02:51PM) were do we get our water from (Posted 04/17/06 02:52PM) if u go to the store the water may be worse | (Posted 05/15/06 02:59PM) how well do filtter work (Posted 05/15/06 03:01PM) do the filters they use have the same material as we used (Posted 05/15/06 03:06PM) what does cotton help stop (Posted 05/15/06 03:10PM) what did the fillter do to clean the water? | (Posted 05/24/06 02:38PM) heat up the mud so that maby water will evaporate alltho it would take a while u can just use the back up water till then (Posted 05/24/06 02:45PM) it would make sense to use back up resivoirs |
| Student 29 | (Posted 04/17/06 02:42PM) blok of water | (Posted 05/15/06 02:41PM) why douse the sand get rid of the dert in the water (Posted 05/15/06 02:44PM) cottin soks up the water so why do we use it | (Posted 05/24/06 02:45PM) blok of the water (Posted 05/24/06 02:46PM) and get badeled water |
| Student 54 | (Posted 04/17/06 02:43PM) make the water taste better i can taste the cloriene | ||
| Student 11 | (Posted 04/17/06 02:44PM) get everybody out of the town (Posted 04/17/06 02:51PM) why doesnt the government just buy a big filter for laffayette | (Posted 05/15/06 02:51PM) what would happen if you were to put an orange or an apple into the water would it affect the water or not and the fruits were clean? | (Posted 05/24/06 02:35PM) I would try to get some more engineers to help me and build a dam (Posted 05/24/06 02:36PM) then make a filter |
| Student 15 | (Posted 04/17/06 02:46PM) i would use the city's money to got a crane and then take it out of the resivoir. Then i would drain the res. and clean the bottom. When all of that was done, i would fill up the res. again. all better:) (Posted 04/17/06 02:53PM) we should get that stuff that cleans up oil and throw 'em in da lake | (Posted 05/15/06 02:41PM) if you used extra materials like plants, would it affect how well our filters filtered the water. (Posted 05/15/06 02:43PM) how big are the REAL filters | (Posted 05/24/06 02:38PM) i would stop the flow of the regular water and only allow the dirty water. I would also run the water through the plant twice to make sure that the water is clean (Posted 05/24/06 02:44PM) i would also use a backup filte |
| Student 18 | (Posted 04/17/06 02:46PM) we should tell people to have water filters is better than just having the water compony doing all the work. (Posted 04/17/06 02:48PM) we could tell people to but water to buy water from the store (Posted 04/17/06 02:50PM) well the last idea of mine is chang the water sorce. | (Posted 05/15/06 02:40PM) save us how do we pass the drabitity test!!!!!!!!!! (Posted 05/15/06 02:43PM) why did we have to do this. what does it take to make the water clean and to have a filter not spill the sand trought (Posted 05/15/06 02:53PM) I THINK WANICA SHOULDN'T BE A BACK UP RESIVORE. IT NEEDS TO BE AT LEAST FILTERED 4 TIMES TO BE ABEL TO DRINK IT. (Posted 05/15/06 02:58PM) some one should speak up about how wanica is the backup for lafiet. good thing i don't get water from them. (Posted 05/15/06 02:59PM) the avrige speed of a filter is a gallon a minet. (Posted 05/15/06 03:04PM) yes the filters they use have the same materals (Posted 05/15/06 03:06PM) well wanica is just plane nasty i can't beleave its a back up for lafiet. so i glad i live in eire. | (Posted 05/24/06 02:42PM) a net would not get rid of mud (Posted 05/24/06 02:44PM) you know i have an idea get alot of cotton, sand and gravle. (Posted 05/24/06 02:46PM) yes close the filter! (Posted 05/24/06 02:49PM) ya... alex H. where would we put the water? (Posted 05/24/06 02:50PM) *sigh* why not get the same chemical that eats oil? (Posted 05/24/06 02:52PM) ask the haz-mat -team |
| Student 46 | (Posted 04/17/06 02:49PM) the town money should be used for our shool. (Posted 04/17/06 02:50PM) explain why? | (Posted 05/15/06 02:43PM) our filter failed do you know how and why? one of test we failed because there was something wrong it didn't work. It was the one where he poured coffee mixed with tea what were we tring to find out on that one again. (Posted 05/15/06 02:49PM) how would we clean the lake with with fishes and lots of trash!!!!!! (Posted 05/15/06 02:53PM) WHAT WOULD HAPPEN IF YOU CLEAN THE LAKE WITH FISHES IN IT WOULD THEY DIE OR COULD THEY BE USE TO IT! (Posted 05/15/06 02:56PM) EEEEEEEEEEEEEU WE DRINK THE SICK AND NASTY LAKE WATER THATS SO DICUSTING HOW DO THEY CLEAN IT AND MAKEE IT SO FRESH (Posted 05/15/06 02:58PM) WANICA WATER IS SO YUCKY BUT IF WE TAKE MORE GOOD CARE OF IT IT WOULD BE A BETTER LOCKING LAKE! (Posted 05/15/06 03:01PM) how would we clean the lake with with fishes and lots of trash!!!!!! |
(Posted 05/24/06 02:49PM) I would take out all the fishes out of the lake be 4 I clean it up so I could come and fish these fishes out of the lake after i'm done clean lake. (Posted 05/24/06 02:53PM) Do U think we will die or we could be choking first and people could call the posion control or will we be floating in the water dead. (Posted 05/24/06 02:55PM) On my last ? i meant after drinking contaminated water. (Posted 05/24/06 02:58PM) we should stop litering in the lake so they can be very clean! By litering we are killing the lake and lots of fishes could strat dying and then the lake won't be a fun place anymore. |
| Student 28 | (Posted 04/17/06 02:50PM) PEOPLE SHOULD GO TO THE STORE AND BY FILTERED WATER | (Posted 05/15/06 02:44PM) How big is the water filter that filters our water? (Posted 05/15/06 02:49PM)How Many Filters does it take a years worth of water? (Posted 05/15/06 02:57PM) How long would a home made filter last in a big factory? | (Posted 05/24/06 02:46PM) THEY COULD PUT A EMERGENCY THING ON THE TV SO EVERYONE KNOWS ABOUT THE MUDSLIDE. |
| Student 38 | (Posted 04/17/06 02:51PM) pepole shoud go to the store and buy water bottels or water fillters. | (Posted 05/15/06 02:42PM) how can u fillter water ever day for lafayette and other places (Posted 05/15/06 02:50PM) would u need to use a really big humongs gaynormaets biggest filter ever (Posted 05/15/06 03:00PM) how would u pass the trubitty test because no one passed it in this class | (Posted 05/24/06 02:40PM) he suould call thepeoplr that fix that i think thier name isazzmare team (Posted 05/24/06 02:45PM) u should fillter the water and tell the city that there might not be some water for a cuopl of days |
| Student 49 | (Posted 04/17/06 02:51PM) They shoud pull the 18 wheeler out of the reservoir and gather as much of the hazerdous matirial as posibale. | (Posted 05/15/06 03:04PM) What happens if we put every thing in backwards? What other tool can my group use? | (Posted 05/24/06 02:49PM) They should clean the water that is derty. |
| Student 30 | (Posted 04/17/06 02:51PM) people should go to the store and buy filterd water. (Posted 04/17/06 02:52PM) people should go to the store and buy filterd water. (Posted 04/17/06 02:54PM) lexi is right not alot of people can buy a filter but the city should. | (Posted 05/15/06 02:57PM) what would happen if we put the cotten in the middle? (Posted 05/15/06 03:02PM) what should we do to pass the test? (Posted 05/15/06 03:06PM) how does the sand help filter the water? I would think that the sad will make it dirty. | (Posted 05/24/06 02:49PM) get the zam -mat -team to do the work. (Posted 05/24/06 02:56PM) the people who care should help clean our water (Posted 05/24/06 03:00PM) slow water down so that it does not come in to fast our the water wont get as clean. (Posted 05/24/06 03:05PM) No won will stop litering in the lake because they dont care about the water. We should tell the people about dirty water on the news channel so they will be more serious about it. |
| Student 37 | (Posted 04/17/06 02:51PM) The town should have filterd water | (Posted 05/15/06 03:02PM) why did our fillter pass the tests? | |
| Student 22 | (Posted 04/17/06 02:52PM) YES WE SHOULD HAVE A WATER FILTER | (Posted 05/15/06 02:43PM) why do we have to make them clean and why do we have to do do it is it becasue so we can can get fresh water to drink? | (Posted 05/24/06 02:51PM) you should use our filters to make it work and if it doesnt work call us and then we will try to fix the filter |
| Student 39 | (Posted 04/17/06 02:53PM) they should make water taste good and be filtered. | (Posted 05/15/06 03:00PM) why did we do a cross word (Posted 05/15/06 03:03PM) how could u pass the turbidity test and not the other test (Posted 05/15/06 03:06PM) we should make a filter that cleans and tastes like a good flavor thats healthy at the same time (Posted 05/15/06 03:07PM) we should make a filter for everyboy so we can all have clean water | (Posted 05/24/06 02:44PM) i would tell him to drain all the water and get something to suck all the mud out. |
| Student 2 | (Posted 04/21/06 12:17PM) I agree with Grace that the company that was shipping the hazardous material should pay for a filter and the filtering prosess. And I think that Lafayette should pay for water filters for everyone because the water does tast like clorine Ian! | (Posted 05/15/06 02:54PM) Because the the filters in the Water Treatment Plant are so much bigger than the ones we built, does that increase their flow rate? | (Posted 05/24/06 03:07PM) I would suggest that the opperator notefy the public and switch the valve/whatever conects the the houses and the fiters over to the back up tanks. then check the filter for any malfunctioning layers, switch or clean whatever is broken or too dirty. then, of that doesn't help, add tight and small-wholed webbing to the top of the filter. |
| Student 14 | (Posted 05/15/06 02:44PM) why did most people fail the trabitity test and how could we improov on it | (Posted 05/24/06 02:53PM) I would filter the whater up streem some what and let the rest of the mud go throgh te gravity filter. | |
| Student 24 | (Posted 05/15/06 02:51PM) WHAT DO YOU HAVE TO DO TO BE ABLE TO PASS THE TURBITIY TEST? HOW LONG DOES IT TAKE TO CLEAN THE WATER FOR THE WHOLE COMUNITY? HOW BIG IS THE COMUNITY'S FILTER? | (Posted 05/24/06 02:54PM) You should stop the flowrate and try to make the water go through the water filter. If that doesn't work then call us back and we'll go to take the mud out and add new corbon tto the filter. After that we will make the water go through the filter two times. | |
| Student 12 | (Posted 05/15/06 02:57PM) i wonder if we used differn't materals the filter would work better. | (Posted 05/24/06 02:47PM) I would sugest to skreen through the water and take out bih things. Than i would say add carbon to the water.That way it could get cleaner. After that i would prevent it from happening. |
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| Student 21 | (Posted 05/15/06 03:09PM) WHAT WOULD HAPPEN IF YOU PUT CLEAN ROCKS AND DURT INTO CLEAN WATER? | (Posted 05/24/06 02:51PM) i think they should get out all the water send all the way throo the water tretment plant then when it is all clean put it back in and se if it is fine!! | |
| Student 50 | (Posted 05/24/06 02:49PM) i would have a profaushanl do it | ||
Grade 6 - Section 2 Responses (unchanged from the original) |
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| Student 1 | (Posted 04/18/06 02:15PM) I would completely shut down the water system for a few hours and inform the residents of the situation. Then I would sue the truck guy and filter out thhe water. (Posted 04/18/06 02:21PM) P.S. Madison F. - Not to be rude, but I disagree. You don't die by drinking tap water. Or do you mean the chemical water needs to be cleaned? | (Posted 05/25/06 03:09PM) help and backwash the water. | |
| Student 25 | (Posted 04/18/06 02:20PM) I think you guy's have good water. But at my friends house the water taste horroball!!! what do you think that is?????????????? | (Posted 05/12/06 02:55PM) if your filterwas broken and you didn'nt have any extras what would you guys do. (Posted 05/12/06 03:09PM) witch cotton do you think works best compresed cotton or normal cotton for a filter for running water that goes to the city. | (Posted 05/25/06 02:52PM) I would say that you should build a new filter and clean all the water. (Posted 05/25/06 02:57PM) first i would close the water treatment plant so nothing from the mudslide would go in then i would call chris and tell him what we should do now |
| Student 33 | (Posted 04/18/06 02:22PM) I would try to clean the water, and have as much people as i can to help me. | (Posted 05/12/06 03:11PM) How does compresed [high density] cotten stay skinnie in water? | (Posted 05/25/06 02:57PM) I would suggest building a new filter,untill the old filter is clean again. |
| Student 17 | (Posted 04/18/06 02:24PM) well you sould contract special people to clean the water. | (Posted 05/12/06 03:02PM) If there there were dirty water and you pord it to the regarly cotton what will the ragaly cotton do,If there were compreesed cotton will the afect be the same? (Posted 05/12/06 03:10PM) If there were dirty water and you poured it into the uncompressed cotton and then the compressed cotton will it have the same affect? (Posted 05/12/06 03:21PM) If there were dirty water and you pord it to the regarly cotton what will the ragaly cotton do,If there were compreesed cotton will the afect be the same? | (Posted 05/26/06 02:19PM) close the base lane resavor and open and open one of the 3 back up resavors so the water comes up clean. |
| Student 26 | (Posted 04/18/06 02:24PM) I agree with kyle p that we should take out the resivor and clean out the resivor then it would be healthy and clean | ||
| Student 10 | (Posted 04/18/06 02:27PM) I would advise to get the water filtered. Not the water in which comes out of the tap but the water that's been polluted by the truck and make the guy that crashed the truck pay for the filter and the filtering process. | (Posted 05/12/06 02:56PM) How does compressed cotton catch more dirt? won't it expand in the water? (Posted 05/12/06 03:23PM) Doesn't cotton absorb? If so then wouldn't that change the flow rate, weight, and amount of water that comes out of the filter? |
(Posted 05/25/06 03:05PM) make a new filter and repair the old one, or use the back up resevoir. if their isn't one call the hazardous material team if it gets really bad. |
| Student 9 | (Posted 04/18/06 02:34PM) I think that the water should be cleaned out because we cant drink the water if it's contaminated. (Posted 04/18/06 02:34PM) I think that the water should be cleaned out because we cant drink the water if it's contaminated. | (Posted 05/12/06 03:16PM) How can u change your filter to work better and pass more of the tests? How do u make a filter that will pass all the tests? Is it easier to pass the PH test, or the flow rate? | (Posted 05/25/06 02:55PM) Warn everybody about the mudside and get rid of all of the mud. (Posted 05/25/06 02:58PM) Use the back up resovoir for everything u need for the normal resevoir (Posted 05/25/06 02:59PM) Call the haz -mat -team to help you with the mudsilde. |
| Student 5 | (Posted 04/18/06 02:50PM) First I would turn off the water to the whole city, so that nobody gets the contaminated water. (Turn on emergency water supily) Then i would get Bactiria to eat the toxic wast. | (Posted 05/12/06 03:13PM) Why do you pick sand ? What makes sand better than other materials? What other matirals can you use... other tha sand ? Why do we test the FLOW RATE? Why does it matter | (Posted 05/25/06 02:51PM) First I would tell the operator to shut of the valve soo no water will go into the water treatment plant, and no water exits the water treatment pl nt Second: I would tell the operator to call Haz-Mat Team. Third Let the hazmat -team comes wait untill they are done d-polluting the river, then turn the valve back on (Posted 05/25/06 02:57PM) close the valve to the baseline rezivor and use the back up rezivor |
| Student 20 | (Posted 05/12/06 03:03PM)
How do you know the sponge become bigger when its wet then its dry? (Posted 05/12/06 03:22PM) asimina also tought about this question PowerPoint on Sponge Inquiry |
(Posted 05/25/06 02:53PM) I WILL SUGGET THAT NOT CONTINUE AND USE ANOTHERE FILTER UNTIL THERES NO MORE PROBLEM WITH THE OTHER FILTER | |
| Student 27 | (Posted 05/12/06 03:16PM) How is it that the pH paper in all of the groups turned out to be more basic than acidic? They all about seven or above. How will you make the perfect filter to pass all of the tests? What are all of the correct materials to use and in what order? | (Posted 05/25/06 03:05PM) If there was a mudslide, I would recommend using the back up resevoir. A back up filter. | |
| Student 47 | (Posted 05/12/06 03:28PM) HOW DO THE PIPES LAY OUT CHANGE THE FLOW RATE? | ||