PlantingMI6 HQ

Project by group hthsrochefall2016project

Info

Explore Plants have leaves with which they photosynthesize sunlight. Inside those leaves are chlorophyll which converts sunlight into energy. Plants have roots with which they gather nutrients and water, which is transferred through their stems. Questions that interest us are how plants react to...
Research Question We want to study the effect of sound on plant growth. We came up with this question by first looking at the materials that were available and since we we're all interested in technology, we decided to pursue the effect of sound. We know a lot about technology and had previous done many...
Predictions There are three possible outcomes given our experiment. The first, which we favor, is that a higher frequency will positively affect plant growth based on studies already made on different plants. There doesn't seem to be a general consensus on the reason of this. The second is that a lower...
Experimental Design Our plan, as shown in our Experimental Design Diagram (saved in Files as a PDF under the name 'EDD'), is to have three test groups with each group having 12 trials. One will be subjected to 500 Hz, the second to no sound (control), and the third to 7,600 Hz. When the experiment is complete, we...
Conclusion In the project results, the plants subjected to sound tones grew the tallest and had the most leaves on average. The plants grown in the 7600 hz tones had the highest averages for both, followed by the 500 hz ones and then the control with no sound. Our final paper detailing this is saved in...

Updates

Get to know your team’s scientist mentor, who will encourage and guide you through the scientific process of discovery. The more you share your ideas and research info, the more your mentor can help. You may also hear from a scientist mentor liaison who will be helping all the teams in your class.
PlantingScience Staff
has been updated by administrator
kevin
updated the project info
gustav
said

Thanks Matt for being our mentor! We have concluded that there is a small gain in having the higher sound, but you would need a more controlled experiment to find a specific correlation. We have concluded that there really is no significant difference in having higher frequencies during plant growth.

    Matthew Bond
    said

    Nice summary! This is a very good explanation of your results. I particularly like that it shows ideas for future experiments and that it translates what your results mean for other scientists! 

Matthew Bond
said

Good job on the lab report! What are your goals/requirements for presenting your results? A written report, a poster, a presentation?

You may still be working on the report, but I'm curious to know what your results mean. As scientists, we have to answer some additional questions about our experiments (so that our work can help other scientists and give information about larger problems): How sure are you of your conclusions? Can you be sure that the plants your study accurately represent their species? Can you be sure that the plants you grew aren't a freak accident?

Answering these questions might be easier if you add the standard deviations that you calculated to your bar plots in excel (let me know if you want help with this, ask your teacher, or try google)- what do you think?

    justin
    said

    Hi everyone and happy Thanksgiving :). The lab report was actually due very quickly after our experiment was finished and the one we added here was the final one for our assignment and its report rubric. I'm not sure if there's going to be more to the assignment, like a small presentation or poster. If so, we may need to calculate standard deviations then, but they were not asked for in our final lab report. Thanks for all your help on the project Matt!

    Matthew Bond
    said

    Yes, Happy Thanksgiving! Glad your report is all set then, and keep me posted if there are any other parts to this assignment. Thanks for being a great group to work with and thanks for doing great science research!

justin
uploaded PlantingScienceLabReport.pdf in project files
    justin
    said

    Okay now I'm uploading it. Long story but it's here now :)

justin
said

I added our conclusions in the info section. Rohan should upload the full final paper shortly. 

    justin
    said

    Never mind; Gustav's uploading it

    Matthew Bond
    said

    I see the info section update and am excited for the paper itself! I'm particularly interested in the data figures. 

    As scientists, we have to answer some additional questions about our experiments (so that our work can help other scientists): How sure are you of your conclusions? Can you be sure that the plants your study accurately represent their species? Can you be sure that the plants you grew aren't a freak accident? To answer these questions, watch this video (especially the first minute): https://www.youtube.com/watch?v=MRqtXL2WX2M

    To calculate the Standard Deviation, you can use Microsoft Excel (as you already did for the mean). Type the following code into the cell where you want the Standard Deviation result

    =STDEV(A1:Z99) (substitute the cell name of the first value in your dataset for A1, and the cell name of the last value for Z99.)

    Let me know what you find! You can add the standard deviation to your plot in excel (let me know if you want help with this, ask your teacher, or try google) which will really help you interpret and present your results.

justin
updated the project info
gustav
said

I uploaded pictures of the results. Here, we recorded the height in cm and leaf count. We're going to include a data table of all the trials, but also average them and graph them.

    Matthew Bond
    said

    How are you averaging and graphing your data? Excel?

    gustav
    said

    We're going to be using excel to input the data and make a second data table for the averages and then probably graph the averages in a bar graph to show the difference.

rohan
said

Today we finished the experiment and took the final height and leaf count of each plant. Gustav will post the results later. 

    Matthew Bond
    said

    Excellent! I see some discussion already about how you plan to analyze the results. What do you think are the benefits and drawbacks of grouping all trait data or plotting the traits separately? 

    kevin
    said

    The benefits of grouping all trait data is that we have a collective score for every plants but by plotting the traits separately is that all the information is shown, and we are going to plot the height and number of leaves separately. 

    justin
    said

    We chose to make separate tables and graphs instead of scores so that the data is shown exactly how it occurred, not as determined scores.

    Matthew Bond
    said

    Nice conclusions! Plotting them separately will allow you to see if both plant parts tell the same story or if the stories are different. 

kevin
said

We have already collected our data and we don't think that counting flowers or seed pods is necessary because we have already have leaf counts. We also don't have enough time to wait for the seed pods to mature. 

gustav
uploaded IMG_2012.JPG in project files
gustav
uploaded IMG_2011.JPG in project files
gustav
uploaded IMG_2010.JPG in project files
Matthew Bond
said

What do you think about counting the number of flowers or seed pods as well? It looks like you've already taken down the experiment, but perhaps this could be calculated from the images you have?

rohan
uploaded IMG_2727.JPG and 3 more files in project files
    rohan
    said

    These are the final picture of the plants inside the foam structure and outside the foam structure. 

rohan
said

Displaying IMG_2727.JPG

These are the 500 hertz plants. 

rohan
said

I forgot to mention this but for some reason, our foam setup started to leak. Luckily, Gustav and I were there and we added a plastic wrap under the aluminum, so the water will stay put. Fortunately nothing was broken or affected by this problem. 

gustav
said

We're planning on collecting the data on Wednesday. We're going to measure the height of each plant and the leaf count. We're thinking of adding those together to come up with a final score for each trial. They have begun flowering.

    justin
    said

    I don't think a 'score' is needed; we can just have two separate data types, tables, and graphs. The two can be different measures of the growth. 

    rohan
    said

    So on Wednesday, will we take apart the setup and end the experiment? 

rohan
updated the project info
rohan
replaced project picture
PlantingScience Staff
joined the project
kevin
said

We think that our experiment will run for another week. We believe that the flowers will grow over the next week.

justin
uploaded 03.jpg and 2 more files in project files
    Matthew Bond
    said

    How much longer will your experiment run? What do you think about the flowers?

justin
said

I uploaded the latest pictures of the plant growth before our school break on Thursday and Friday. Also, we need to add the team photo. Rohan, I think you have that on your phone. 

rohan
said

Sorry for that display thing. These are some close ups of the WFP growing inside the foam structure. Most of them have germinated and are growing leaves.