Something I forgot to say!!

I have my materials and procedures already written. As well as my introduction to my data analysis that I just finished. It was really easy!
Also, Ms.Minn just announced that we should be ready to present our data analysis to the class BY Thursday. Soo...... yeah. I have a lot to do tonight. But if I work hard I know I can finish within two hours once I get home.

After Spring Break

The reason why it's been awhile since I last posted is because we had 2 weeks worth of spring break. I decided not to work on my data analysis over break, and to just enjoy myself instead.
Therefore, I have to be honest: I haven't started my data analysis yet. So yeah, that could be a problem. Although, I know of quite a few people who haven't started or aren't far along into it yet. So I should be okay... but I regret procrastinating because I have a lot of work to do this week.

Anyway, I'm staying after school today to recreate the data table and graphs that I made in the lab a few weeks ago, as I unfortunately didn't save them or email them to myself. Sigh. Hopefully I can get my lab report done as soon as possible, so that I can relax over the four day weekend and enjoy my Easter. I'll post my progress to the blog.

As of now: haven't started.
Soon to happen (after I post this, although we have a short period OR tonight): I'll start and try to get at least 3 paragraphs done and organize my data.

Picture of the Top of 7 Hour

Today, while cleaning out my test tubes, I noticed the weird film which I found in trial #1 was also in my second trial
ALSO, yesterday I handed in my final data tables and graphs. I haven't gotten my grade yet.
I finished my experiment a few days ago, and my graphs and data tables turned out perfectly. I'll post them later.

Data Averages

Dissolved Oxygen Production Averages

TRIAL #1

2/16/10-

2H: 17.5

7H: 9.5

CONTROL: 22.5

TRIAL #1

2/17/10

2H: 15.5

7H: 7.5

CONTROL: 25.5

TRIAL #1

2/18/10

2H: 17

7H: 4.5

CONTROL: 28.5

TRIAL #1

2/19/10

2H: 11 (made mistake in table-numbers were 12 and 10)

7H: 5.5

CONTROL: 29.5

TRIAL #1

2/22/10

2H: 5.5

7H: 5

CONTROL: 20%

TRIAL #2

2/23/10

2H: 1.5

7H: 4%

CONTROL: 35%

TRIAL #2

3/3/10

2H: 18.5%

7H: 11%

CONTROL: 26%

TRIAL #2

3/4/10

2H: 13.5%

7H: 7.5%

CONTROL: 26%

TRIAL #2

3/5/10

2H: 9.5%

7H: 6.5%

CONTROL: 30%

TRIAL #2

3/9/10

2H: 7%

7H: 2%

CONTROL: 34.5

TRIAL #2

3/10/10

2H: 3%

7H: 7%

CONTROL: 33%

Perfect Data Today! And a picture too

Perfect tap water reading today! I have a feeling these are accurate.

Looking good! 29%

Control #2:

33%

control #1:

36%

2 hour

#1: 8%

#2- 6%

 7 hour:

#1- 2%

#2- 2%

I got PERFECT data today. It feels great!!

I used the second dissolved oxygen sensor, like I did yesterday.

I decided to take a picture of my #1 7 hour test tube, because the top is curling over- like it's crippling. 

My Data Table Thus Far...

So, I fixed my old data table, and added in some of my results which I had just been recording in Notebook in a Word Document. Some of the information entered into my data table may not be in my blog, though most of it should be. A day didn't go by that I didn't put my research into this document.
Anyway, since I started a new trial I had a lot of changing to do to my data table! Here it is:

Halle, Why did you go so long without blogging?

...you may ask. Well, mysterious person, I didn't have any data to record because I had to prepare my new Elodea. Which was about a 2 day ordeal.. I believe I stopped taking data on Monday. 

Right now, I'm taking measuring the oxygen of my tap water to make sure it's accurate.

Here is my 2 hour from today, 3/5/10:

2 hour: 

#2- 9%

#1- 10%

2 hour:

#1: 14%

#2:  13%

Control:

#1: 26%

#2: 26%

7 Hour:

#1: 7%

#2: 8%

Above are my results from my first day of taking data.

The beginning of trial #2!!

So, according to their oxygen production and generally look, my 7 and 2 hour elodea were dying. In each rack at least one test tube had an elodea which was crumpled to the bottom, and the elodea were beginning to stink up the whole science room!
So, when I talked to Ms.Minn and Dr.Wright yesterday, they suggested that I start a second trial. I'll fix some of the minor mistakes that I made in trial 1, and I'll take data on my trial 2 elodea for the same amount of time as my trial 1 Elodea: 7 days.

What I will change in my second trial:
I won't use parafilm. If the water evaporates, I'll add distilled water to the test tubes.
I'll cut the Elodea down more so that there isn't too much Elodea in one test tube.
I'll standardize (still have to ask Ms.Minn about this...) my results with tap water results because sometimes the dissolved oxygen sensors are not 100% accurate.

Tomorrow, I'll post pictures of my new Elodea and record the data that I took recently and the data that I'll take tomorrow!

I'm really glad that I'm doing a second trial. It was a really good idea instead of measuring the oxygen production of already dead Elodea.

7 Hour- 3/1/10

#1: 2%
#2: 1%
Still doing a little better than the 2 hour! Why?!


I forgot to post my final research paper awhile ago. I'll do that tonight.

Pictures of my 2 Hour..

#1

#2 :

Today's Data 3/1/10 Without 7 Hour

Today’s Data: 3/1/10

We missed school on Thursday and Friday, so my Elodea was not subjected to UV radiation. Of course, they weren’t subjected to the UV radiation on Saturday or Sunday. Also, my control was not exposed to enough light because the lights in the science room were off, so they’re producing a lot less oxygen.

I’m really worried about how the elodea under UV are doing.

CONTROL:

#1: 15%

#2: 17%

2 HOUR:

#1: 1%

#2:  1%

Since my numbers went down for my 7 hour, I concluded that UV light exposure is better than no light at all.