phswcrogersfall2017 project 2

Project by group phswcrogersfall2017

Info

Explore What we know about photosynthesis is that i can occur in water but only in daylight and with a carbon source.
Research Question Will 2 plants photosynthesize the same or differently if we put them in two different water environments?
Predictions We think that plants in a regular environment will photosynthesis better than in a salt one because the salt will slow down photosynthesis.
Experimental Design we will need spinach, 2 beaker cups, l hole puncher, 2 syringes, 2 paint brushes, 2 rulers, 1 light source, and half a cup of salt
Conclusion What claim can we make from our experiment? What are possible explanations for our results? How do the data we collected and our reasoning with scientific ideas support our claim? What future experiments could be done to expand on the results of this experiment?
Investigation Themes
Class Level

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
PlantingScience Staff
updated PresentationC.pdf in project files
PlantingScience Staff
uploaded PresentationC.pdf in project files
PlantingScience Staff
uploaded PresentationB.pdf in project files
PlantingScience Staff
uploaded Presentation.pdf in project files
PlantingScience Staff
joined the project
Jordan Hay
said

Hello Everyone. I enjoyed looking through your presentation. Very nice work. I appreciated the background on osmosis and plant cells and I was really impressed by your graph of the data you collected. Did you replicate your experiment, or did you perform it just one time? Conducting multiple trials would give you more confidence when drawing conclusions. Also, I am curious about the concentration of salt you used. Scientists measure concentration in units of moles per liter. Providing the concentration of salt in your Materials and Procedures section would help others who want to repeat your experiment. Nice Work!

 

    Jordan Hay
    said

    I hope you will be able to update your project info tab. Including some more background on the effect of salt on plant cells and adding a nice title and conclusion would improve the presentation of your project. Again, nice work everyone!

Aileen
uploaded Presentation.pdf in project files
Jordan Hay
said

Hello Students. I see you updated your project information. So why do you think salt will slow down photosynthesis?

    Juan C
    said

    i think this because the salt might suck all the water out of the plant causing it to photosynthesize slower.

Aileen
updated the project info
Jordan Hay
said

Under "Explore" do you have any more background information on how water, salt and light in the environment affects photosynthesis? Relate those environmental variables to the structure and function of photosynthesizing plant cells.

Jordan Hay
said

Improve your hypothesis (prediction) by stating your rationale. Why do you think photosynthesis will be better in a regular environment?

Jordan Hay
said

Hello Team. Nice to see some of your project information. For the experimental design, in addition to the materials, do you have any methods to add? You could briefly summarize the methods and reference your pdf handout.

Brianna
uploaded Student_photosynthesis_and_cellular_respiration_project.pdf in project files
Brianna
uploaded Student_photosynthesis_and_cellular_respiration_project.gdoc in project files
Juan C
said

This week we worked with leaf disks and we had to make them float down to the bottom of a cup, there were alot of errors for example we had leaf disks float up as soon as we started with the lab.

    Jordan Hay
    said

    Hi Juan. You will get used to the procedures as you practice. What kind of leaves are you using? Have fun!

Aileen
said

we did a photosynthesis lab this week and there where a lot of errors like we put data on time zero and we put data on the water control when we weren't supposed to.

    Jordan Hay
    said

    Hi Aileen. I hear you about the errors you have experienced. Often experiments will go wrong. That is why it is important to practice new techniques and also use many replications when doing the actual experiment. Are you replicating you experiments? If you do, then you can average your data.

Brianna
said

Yesterday we talked about graphing our data. We had a project and most students like us made some errors during our lab. Some errors we made were not extracting all the air from the leaf disc. Some others were taking data quickly and not waiting for the time its says.

    Jordan Hay
    said

    Hi Brianna. That is good that you are working on graphing. It will be important to summarize your data in a format that can be effectively reported. How are you graphing your data? Are you graphing by hand? Or are you using a spreadsheet like Excel?

Sara
said

We did a leaf disk lab on Friday .We had to take all of the gases out and be able to get the leaf disks to the bottom of the cup .We did have a few errors like not being able to get the disks to the bottom of the cup .

    Jordan Hay
    said

    It is good to hear that you are working with the leaf disk flotation method. When you learn a new technique, it is a good idea to practice a few times. Those trial runs will help you collect good data when you conduct your future experiments. Why do you think you had trouble getting the disks to the bottom of the cup?

Aileen
said

No we have not learned about the different compartments in photosynthesizing cells or the other stuff but i can't wait to learn more about it.

Aileen
said

what should we change our title to ?

    Jordan Hay
    said

    That is a good question Aileen. Often PlantingScientists will just put their group name in the title. However, a title should completely describe your actual research project. Good titles are also interesting, making the reader want to read the rest of  your report.

Aileen
said

yesterday we learned about the pH scale and how it helps photosynthesis.

    Jordan Hay
    said

    Sounds interesting Aileen. Did you learn about the different compartments in a photosynthesizing cell? How about the lumen and stroma? Which compartment has a higher pH?

Sara
said

Yes we have been learning about photosynthesis .I'm not sure if we will be working with a specific plant .

Sara
said

I do not know what a trichome cell is .This week we are going to be doing a photosynthesis lab .

    Jordan Hay
    said

    That's great Sara. Have you been learning about photosynthesis? Will you be working with a specific plant?

Aileen
said

No i have not read a journal article .I didn't  know that they had so much information in it. And i agree that feedback loops are interesting  like the way negative feedback loops restore everything back to order.