Water Quality B/C

sazhassan
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Posts: 17
Joined: February 9th, 2012, 5:33 pm
Division: B
State: MD
Location: On my laptop, making notes for one of my 6 test events... ^-^

Re: Water Quality B/C

Postby sazhassan » April 1st, 2012, 10:04 pm

What the heck wasup with the division b water quality test?? It was so hard!!!! This is my best event I study everything and then it becomes the hardest event ever at States!!! Then we have to use the Salim nometer and got 7th percent!!! I'm freaking out because I got 7th place out of 20 teams!!!! Ahhh!! :cry: :oops: :cry: :oops: :cry: :cry: :o
My 1st season of SO:
Optics - (5th, 4th)
Water Quality - (3rd, 7th)
Compute This - (2nd, 5th)
Reach for the Stars - (1st, 2nd)
Experimental Design - (3rd, 7th)
Anatomy - (2nd, 2nd)
Team: 3rd, 4th

2013 events:
Anatomy, Reach for the Stars, water quality, meteorology, dynamic planet

cngu23
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Posts: 248
Joined: March 12th, 2011, 4:57 pm
Division: C
State: MD
Location: Maryland

Re: Water Quality B/C

Postby cngu23 » April 2nd, 2012, 10:39 am

What the heck wasup with the division b water quality test?? It was so hard!!!! This is my best event I study everything and then it becomes the hardest event ever at States!!! Then we have to use the Salim nometer and got 7th percent!!! I'm freaking out because I got 7th place out of 20 teams!!!! Ahhh!! :cry: :oops: :cry: :oops: :cry: :cry: :o
Division C test wasn't that easy either, especially with the multiple choice. The multiple choice seemed way harder than the short answer.
Marriotts Ridge 11-
Walter Johnson 09-11

13 MD Regional/State
Material S (2/-) TPS (-/2)
12 MD Regional/State
Remote S(2/6) Water Q(2/4) Optics (-/5)
11 MD Regional
Remote S(2) Eco(2) D Planet(3)

bookworm2110
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Posts: 18
Joined: March 27th, 2011, 12:29 pm
Division: C
State: CT

Re: Water Quality B/C

Postby bookworm2110 » April 2nd, 2012, 1:36 pm

Does anyone think that proctors are scared to make a solution below 3% or above 8%? I've never encountered any higher.
At my competition, we had solutions of 10%, 5%, and 1.5%. They were at least around there, because I don't know if we got them right.

sazhassan
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Member
Posts: 17
Joined: February 9th, 2012, 5:33 pm
Division: B
State: MD
Location: On my laptop, making notes for one of my 6 test events... ^-^

Re: Water Quality B/C

Postby sazhassan » April 2nd, 2012, 4:01 pm

What the heck wasup with the division b water quality test?? It was so hard!!!! This is my best event I study everything and then it becomes the hardest event ever at States!!! Then we have to use the Salim nometer and got 7th percent!!! I'm freaking out because I got 7th place out of 20 teams!!!! Ahhh!! :cry: :oops: :cry: :oops: :cry: :cry: :o
Division C test wasn't that easy either, especially with the multiple choice. The multiple choice seemed way harder than the short answer.
My partner said Division C and B were the same except for one question. Wq is my best event, I got 7th. ;(
My 1st season of SO:
Optics - (5th, 4th)
Water Quality - (3rd, 7th)
Compute This - (2nd, 5th)
Reach for the Stars - (1st, 2nd)
Experimental Design - (3rd, 7th)
Anatomy - (2nd, 2nd)
Team: 3rd, 4th

2013 events:
Anatomy, Reach for the Stars, water quality, meteorology, dynamic planet

ptkid
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Posts: 246
Joined: March 12th, 2011, 6:54 am
Division: Grad
State: TX
Location: Texas

Re: Water Quality B/C

Postby ptkid » April 2nd, 2012, 7:39 pm

What the heck wasup with the division b water quality test?? It was so hard!!!! This is my best event I study everything and then it becomes the hardest event ever at States!!! Then we have to use the Salim nometer and got 7th percent!!! I'm freaking out because I got 7th place out of 20 teams!!!! Ahhh!! :cry: :oops: :cry: :oops: :cry: :cry: :o
What type of questions were there? Can you list some?
Seven Lakes High School '16
Previous National Champion in Green Generation and National Medalist in CJAP, Disease Detectives, Entomology, & Water Quality

jfang1234
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Posts: 1
Joined: April 7th, 2012, 10:15 am
Division: C
State: CA

Re: Water Quality B/C

Postby jfang1234 » April 7th, 2012, 10:40 am

Any in depth bug questions? I hope it focuses more on the other sections, its water quality, not entomology!!!!. lol sorry, i just hate the bug part.

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silentsage
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Posts: 88
Joined: December 22nd, 2011, 10:09 am
Division: C
State: PA
Location: Sorry, I'm busy reading a very large book.

Re: Water Quality B/C

Postby silentsage » April 7th, 2012, 11:22 am

Any in depth bug questions? I hope it focuses more on the other sections, its water quality, not entomology!!!!. lol sorry, i just hate the bug part.
I love the bugs, but my Regional WQ had none. I find the bugs to be really easy once studied, and life is the most important indicator of water quality, so sorry, there has to be identification.
Road Scholar seems to depress everyone on my team who does it, but it's my favorite event...
I <3 DQIX and Squirtle
2013 RS National Champ

alethbridge
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Posts: 1
Joined: April 10th, 2012, 3:11 pm
Division: B
State: UT

Re: Water Quality B/C

Postby alethbridge » April 10th, 2012, 9:19 pm

The problem we have found seems to be with the clay. It can dry out, change shape slightly, not seal correctly, absorb water. What I have found to be more accurate is to use different materials that are impermeable to water. I have had much more accuracy using a pipette or plastic syringe. The bulb part at the bottom I filled completely with sand (if you do not fill it completely, the air pocket will make the salinometer tip to the sides). Then, because my pipette was not long enough to keep the top above water, I plugged it with some clay and cut a straw in half and pushed the straw onto the pipette. I then taped over the edge of where the straw connects to the plastic pipette. I then started with my 0% solution and marked the line, then I mixed a 10% solution and marked the line. Then using my ruler I made a line that was 1/2 way in-between and then just experimented with eyeballing the other 4 lines in between 0 & 5 and 5 & 10 to make them equally spaced. I have tested this salinometer with other % solutions and it seems to be fairly accurate now. Here is a link of what the plastic pipette looks like (ask your science teacher if they have some!) and I used a larger straw that seemed to fit snugly. I cut the tip of the pipette somewhat to be able to pour the sand in. Hope this is helpful.

FlyingMonkey85
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Posts: 23
Joined: April 13th, 2012, 1:58 pm
Division: B
State: NY

Re: Water Quality B/C

Postby FlyingMonkey85 » April 13th, 2012, 2:03 pm

I am new to Water Quality, and had a question on the salinometer. When they ask for say a 5% salinity, is it 5 grams of salt and 95 grams of water? Or is it 5 grams of salt and 100 grams of water? Also, what salt will they be using? Non-Iodized Table Salt? Thanks in advance...
"It's not denial, I'm just selective about the reality I accept" -Calvin

gigaboo
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Posts: 64
Joined: February 23rd, 2011, 9:46 pm
Division: C
State: UT

Re: Water Quality B/C

Postby gigaboo » April 13th, 2012, 4:39 pm

I am new to Water Quality, and had a question on the salinometer. When they ask for say a 5% salinity, is it 5 grams of salt and 95 grams of water? Or is it 5 grams of salt and 100 grams of water? Also, what salt will they be using? Non-Iodized Table Salt? Thanks in advance...
It seems like this was confusing for a lot of people. Earlier in the thread, someone posted the answer to that question and an official rules clarification. Good luck!


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