|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?|
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!
Hello Students. I see you updated your project information. So why do you think salt will slow down photosynthesis?
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.
Improve your hypothesis (prediction) by stating your rationale. Why do you think photosynthesis will be better in a regular environment?
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.
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.
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.
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.
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 .
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.
Yes we have been learning about photosynthesis .I'm not sure if we will be working with a specific plant .
I do not know what a trichome cell is .This week we are going to be doing a photosynthesis lab .
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.