mhsfreemanposfall2023 project 7
- Project reviewer
Joined 09 Sep 2023
Project by group mhsfreemanposfall2023
Info
| Explore | We know that plants require sunlight to grow. This function is known as photosynthesis. This process requires carbon and sunlight, and it creates oxygen as a byproduct. We discovered that without light, the plants cannot grow and they cannot make oxygen. We have tested before how light affects... |
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| Research Question | We want to study how different light levels affect the rate of photosynthesis.. We came up with the question whilst brainstorming what ways different light levels affects photosynthesis. It fits what we know about the topic because we know how light affects photosynthesis, but we do not know how... |
| Predictions | If we test different light levels, then the light with the highest watts will float up faster. This is because it will have more light, and this will cause it to begin floating faster. When carbon is added, there is a carbon, water, and light source. When these 3 sources are available,... |
| Experimental Design | First we will make 45 spinach holes with a hole puncher. Then we will take 15 of them and put them in 3 syringes and we will then fill them with water. Then you will make a vacuum seal by covering the hole with your thumb, then you will pull back on the syringe and shake it until all spinach... |
| Conclusion | In conclusion, we tested how light affects the rate of photosynthesis. After we did our experiment, we now know that the more light the plant can get, the faster its rate of photosynthesis is. The plant with the 20 watt light had all its discs come up in 17 minutes, the 10 watt had them come up... |
| About this Project | I am very proud of the work these students put in to their project. They came up with a very interesting experiment which showed creativity and ingenuity. They accepted constructive criticism in strides and were almost always able to reach sound conclusions without too much help. The work that... |
Updates
Excellent work, all! Your conclusions are measurable and sound; so I have no edits. It's always very cool when your results support your predictions. This turned out to be a really neat project. You all should be proud!
Thank you so much!
Hey we completed our project!
Hey! We updated our project and fixed the things you wanted us to fix.
Hi Jon!
Awesome, you guys are so close; but I think that my advice was slightly unclear. You are still investigating photosynthesis (not floatation) but the the rate of photosynthesis is what causes the plants to float (like in lesson 3, by creating oxygen). Does that make sense? When I said float time would be a better measure, I meant as opposed to growth since you will be able to observe the plants floating more easily than growing (just because it's a short project). Float-time is just an easy variable to measure (using time, ex. Sample A started to float after 10 min and Sample B started to float at 20 min).
That said, it sounds like the question you are trying to answer is "How do different levels of light impact the rate of photosynthesis?". Which, I'm pretty sure, was your Research Question before. I mainly wanted you to work on you explore section, since you didn't mention your interest in/question about light levels there.
Hope this helps! Sorry if I was unclear earlier, and thanks for your hard work!
Okay! That all sounds pretty nice. :)
Ok I fixed everything and I added a sentence in explore talking about light levels, if I did anything wrong this time just let me know and I will fix it.
Great updates y'all. The only critique I have is for you prediction: "If we test different light levels, then the light with the highest watts will float up faster. This is because it will have more light, and this will cause it to begin floating faster." I wonder if you should mention why it will float faster? Think about why the plants float, like from lesson 3. If you need help figuring this out, just let me know. Otherwise, I think everything looks good to go! Awesome work :)
Ok I added that into the prediction.
Awesome! Great work. This is shaping up to be a really cool experiment. Good luck, and let me know if you have any questions along the way. I'm excited to see the results.
Hi all! I just checked out the info for your independent project and it sounds like a really great idea! Some of the comments I have are as follows:
1. It seems that your main question from the explore section does not align with your research question and proposed project. Is there a better lead-up that you could use?
2. Based on your experimental design, and time restraints, it seems like a more fitting measurement of the impact of varying light levels would be float time. Similar to your results from lesson 3. So instead of measuring growth, you would watch the samples to see which floats first and record the difference in time. Of course, the more data the better so track other observations as well.
Hope this helps! Let me know what you think or if you have any questions.
We just finished lesson 4. We put 4 test tubes out and we covered 2 in foil, and put 2 under the light. One of each group had a plant in them, and we put phenol in all 4. We are going to check on them tomorrow and gather our results. We think that the 2 in the light will change color, because they will be receiving oxygen, which will help raise the Ph.
This is a great hypothesis! Did your results support it?
Both of the ones with plants changed color, so our results didn't support it.
the photosynthesis happened in the two with the plants
Hi Tavion, these were the results for which experiment? Do you have any questions for me?
they were a little yellow
Hi! We just did Lesson 3 part 2. Nothing changed on the test tubes so we are going to redo it on Tuesday.
That sounds like a good plan, sorry things didn't go as expected!
it failed
Don't worry, experiments don't go as planned all the time! What happened?
I learned that they don't float without light.
Hi Tavion! Why do you think that they didn't float?
Hello! We just did lesson 3. We tested to see how light affects plants. We redid the spinach experiment but instead of both of the leaves being in light, we put one in light, and we put one in foil. For the carbon in the plants, we added baking soda into the water. We let it sit for 25 minutes and then we checked them. The one under the light had a few float up and the dark had none float. We learnt that without light, plants can't perform photosynthesis. Light helps plants grow, and dark doesn't help the plants grow.
Jon,
This sounds like a really cool experiment! Was the outcome what you expected?
The outcome went exactly as we thought it would.
My name is John, and we just finished lesson 2 and we will do lesson 3 tomorrow. I like to sew, and I also like to grow a garden. My experience with plants is with gardening, my family grows a garden every year. My favorite plant is a blue Cornflower. My favorite subject in school is history, I enjoy learning about things from the past. I am not too sure what my career path is, but I would like to do something with coding. My main question for you is what inspired you to choose a career in science?
Hi John!
I am actually trying to learn to sew, myself. It's awesome that you have a green thumb; I hope your garden did well this year. I actually like to code a little bit, too-- that would be an awesome career field.
I loved science and the outdoors growing up, but I didn't choose a science-major in college at first. I switched my major to botany after I worked two summers (during college) at the New Jersey Botanical Gardens (near where I grew up). While working at the gardens, I realized I really loved plants and working outdoors!
Our garden did pretty good this year, and I currently haven't coded a whole lot.
We did part 2 of lesson 3 with the aquatic plant elodea
Hello! My name is Tavion. I like making stuff out of clay and writing. I've planted water melons before.
Hi Tavion, very nice to meet you! Awesome hobbies :)
my name is jordan im interested into football i dont have any experience o dont have a favortie subject in school. my carrer goals are nothing at this point and no i dont have any queasations for you
Nice to meet you Jordan!