I FINALLY PRESENTED!!!!!

I am so relieved and today I presented at 8:00. I was so nervous but once I got it over with all I felt was relief and I was so proud of myself. I had worked so hard and finally it was over. During the presentation it was not as nerve wrecking as I thought it would be I barely even stuttered or messed up during the actual presentation. I will admit for some of the questions asked by the teachers dumbfounded me but in the end I was happy and all my worries from the past few months were lifted off my shoulders.

I handed in my Presentation

Today at around noon I handed in my power point presentation. At first I was relieved but I was like "wait did I remember everything." But I am pretty sure that I remembered all of the requirements. I checked it with the rubric and I think it's perfect. Tonight I am going to continue to practice and I will do the same over the weekend. SO on tuesday when I present I will be 100% ready.

Power Point

I am almost finished with my power point now. It has lots of pictures and details and I wrote a scrip in the noes portion of power point so I can expand on each of my slides. I am now adding effects to my presentation. But tonight I plan on practicing and timing my self while going thorough the presentation so I can see if I am over the time limit or under it. As of now I have 28 slides but technically I have 23 slides that have text on it. My presentation is really colorful and pretty to the eye. So I hope while presenting none of the little forth graders will get bored like I did when I was there age watching the presentation. It will be ready to be turned in tomorrow.

It's time to start my presentation

Today in class Ms. Minn gave us all the criteria for our presentations. Tonight I plan on starting my power point. I am still a little bit confused on what I will have to include so when I make it I'm going to have to keep the rubric next to me during the entire process so I follow all the directions. We were also told when we would be presenting. I will be presenting on G day first thing in the morning at 8:00 a.m. I have exactly one week to do my presentation everyone is handing them in on April 14 ant 3:00 p.m. We also were told how we would all have one host each and Savannah and I decided that I'm going to be her host and she's going to be mine! I am scared for my presentation but at the same time I just want to get it over with.

Lab Report (without data tables and graphs)

Lab Report

I. Experimental Question & Hypothesis

           

Purpose: What is the effect of acid rain on the oxygen production of primroses and is it influenced by the presence of flowers on the plant?

Hypothesis: If different pH levels of acid are given to plants, then the oxygen production of the plants will be different depending on the pH of the acid.

II. Experimental Design

 Independent Variables:

The pH level of the acid rain

 Dependent Variable:

The oxygen production of the primrose

Materials:

1. 6 Primrose Plants

2. 420 ml of Acid pH 3

3. 420 ml Acid pH 4

4. Oxygen probe

5. 1 Syringe

6. 6 stoppers

7. 420 ml Tap water

8. Goggles

9. Apron

10. Duck tape

11. 6 Plastic containers

Procedure:

1. Remove the flowers off of three of the primrose plants

2. Put the primrose plants with flowers in three separate plastic container

3. Put the primroses with no flowers in three separate containers

4. Tape every container shut and stick the stoppers in the hole

5. Put 35 ml of tap water into the syringe

6. Quickly take the stopper out the container with the primrose without flowers

7. Stick the syringe into the hole in the container

8. Squeeze out the tap water into the soil of the primrose

9. Quickly take the syringe out the container, and then put the stopper back in it

10. Put 35 ml of tap water into the same syringe

11. Quickly take the stopper out the container with the primroses with flowers

12. Stick the syringe in the hole in the container

13. Squeeze the tap water out into the soil of the primrose

14. Take the syringe out and put the stopper back in the container

15. Take one of the containers with a primrose with no flowers

16. Put 35 ml of acid rain with a pH of 4 in a different syringe

17. Quickly take the stopper out the container

18. Squeeze the acid rain into the soil of the primrose

19. Take the syringe out of the container and put the stopper back in

20. Get the container of primroses with flowers

21. Put 35 ml of acid rain with a pH of 4 in a different syringe

22. Take the stopper out the container

23. Squeeze the acid rain out into the soil of the primrose

24. Quickly take the syringe out of the container and put the stopper back in

25. Repeat steps 15-24 exactly but water the primroses with acid rain that has a pH 3of 3 instead of 4

26. Take a picture of the setup

27. The next day test the oxygen production using an oxygen probe

28. Stick the oxygen probe into the hole in the container

29.  Open data studio

30. Calibrate the oxygen probe

31. Wait three minutes while the data is collected

32. Remove the probe from the container and put the stopper back into the whole

33. Repeat for each container

  

Observations

            Throughout the entire experiment the primroses with and without flowers watered with tap water pH 7 survived. The flower petals stayed bright pink and flawless, the leaves were green and each day 2 to 3 small new buds started forming underneath the leaves near the stems. The primroses without flowers watered with acid rain grew new flowers after two days into the experiment.  The flowers lasted for two more days after that they then started molding. They stated turning completely brown with only small traces of pink. Before they were completely destroyed the flower petals became a really light pink, slightly white and translucent. There were four brown flowers that had white fuzz forming on the center. The sepals of each flower started to wilt and fall over; they were also starting to turn brown and contained a small layer of green and brown mold on each of them. The leaves are mostly green but two of them had about half of the leaf moist and brown and yellow. They then wilted and started seeping into the leaves. The reactions to acid that had occurred were consistent with all the primroses that were watered with acid. There physical appearances were similar. The leaves had browned around the edges; holes were forming through them, they were slightly webbed and only a little bit of leaves left. The primroses with flowers watered with acid rain started falling apart. The petals are brown and falling off onto the stem is tilting over and the buds that had started to form have white fuzz all over the surface.  The flowers are now formless and folding.

IV. Experimental Results

            The purpose of this experiment was to establish the effect that different pH levels of acid rain had on the oxygen production of Primroses. This would indicate the rate of photosynthesis of the plants. This experiment also focused on the influence of flowers on the primroses oxygen production. The extent of the experiment was twenty days long. Throughout the experiment twelve days of data was recorded. The purpose of this experiment was to find if different pH levels of acid rain would cause the plants to produce different amounts of oxygen. Moreover, plants with flowers would be affected by acid rain differently than those without flowers. With this in mind, the expected results would be that over time, the plants would generally deteriorate in health due to acid rain except for the plants that were watered with tap water.

            From analyzing the data it was found that plants with no flowers produced more oxygen than the plants with flowers. At pH 7 the primroses with flowers had an average oxygen production of 17.1%, while as those without flowers had an average of 20.0%. Furthermore, the primroses without flowers were found to produce less oxygen when watered with acidic water. Of the primroses with no flowers the average oxygen production at pH 7 was 20.0% while as the average at pH 3 was 17.3%. Plants with flowers produced more oxygen when watered with acidic water. When watered with pH 7, they had an average of 17.1% while at pH 3 the primrose had an average of 19.1%.  However, it was observed that flowers on these plants died or had gone bad over the experiment period. The oxygen production of the plants with dead flowers had increased after the flowers had died. This shows that the presence of flowers is a factor that affects the oxygen production of a plant.

            According to the data analyzed, the flowered primroses were found to have an opposite reaction to acid rain from the non-flowered primroses. The mean oxygen production at pH 7 was 17.1%, pH 4 was 18.3%, and at pH 3 it was 19.1% while as that of the non-flowering plants was 20.0% at pH 7, 18.2% at pH 4 and 17.3% at pH 3. The primroses with flowers watered with pH 7 during the beginning of the experiment started out producing nearly the same amount of oxygen as the primroses with acid. The primrose with pH 7 oxygen productions was 18.9, pH 4 was 19.1, and pH 3 was 19.3. During the majority of the experiment the lower the pH of acid the more oxygen was produced. This continued until the final four days of the experiment. The primroses with no flowers oxygen production of the plants started out fairly close to each other. Though throughout the experiment it became opposite to the primroses with flowers, the higher the pH the more oxygen produced. During the last four days of this experiment this pattern changed as well.

            The data indicates two different reactions to the acid rain, which was determined by the presence of flowers or the absence of flowers on a plant. There was a direct correlation between acid rain and the level of oxygen production in flowering plants but an inverse correlation between acid rain and the oxygen production in non-flowering primroses. The data shows that when the primroses were watered with more acidic water, the flowering plants produced more oxygen.  However, the primroses with no flowers produced less oxygen.

V. Conclusion

            These results show contrasting effects of acid rain on plants based on the presence or the absence of flowers. Photosynthesis is affected by many other factors such as light, and carbon dioxide. My hypothesis may have had an insufficient amount of data to support it. The data would have been more comprehensive if this experiment was longer and had more plants to test and a winder range of pH levels. Since non-flowering plants produced more oxygen than flowering plants even at pH 7 it shows that the presence of flowers affected the level of oxygen measured and this could have caused the data to be inconsistent.

            Though the appearance of the plants watered with acidic water was inferior to the plants watered with tap water, in the case of flowering plants, the acid rain enhanced the oxygen production of the primroses. This indicates that acidic rain improved the photosynthesis of the flowering plants but it was not beneficial to the actual flowers as the flowers wilted. From this it can be concluded that the oxygen production level may not have been the right variable to choose to measure the effect of acid rain on plants. It is also possible that if the oxygen production was going to be measured it may have been better if a different tool was used for this experiment. 

            This experiment may have also been affected by the days that data was not collected and the primroses plants were not watered due to snow days and weekends. It is evident that acid rain has negative effects on flowers since all flowers wilted when the plants were watered with acidic water. The results discovered during this experiment shows that acid rain can negatively impact our environment by destroying the flowers, which in turn causes less pollination resulting in poor food production. This would also affect the food pyramid as different species of insects rely on flowers for food. It proves that fossil fuels and pollution do affect plant life. From this study, it may be concluded that acid rain is not beneficial to the environment and its causes must be prevented.

Finishing my Lab report

Last night I finished my whole lab report but today I have just been looking over it and editing. In class i have been comparing it to the rubric to make sure I have included all the details. I want to make sure that it is complete before I turn it in later tonight. I plan to go to Ms. Minn during IL or CWP so she can read over my conclusion. I worked on my analysis yesterday to make it perfect and I edited it with Savannah we read each others lab reports. I have had a peer review for both my conclusion and analysis.

Data Analysis

Today I have been trying to work on my data analysis. It's really hard for me and frustrating because I don't know how to explain everything that has happened in my experiment, and I don't think I have a logical explanation for all the data I have collected. So far I have been writing multiple paragraphs and just cutting them down more and more since they I'm not sure if they are saying what they should. I plan to go after school to get help.