|Explore||Germination is the process in which a plant grows, roots, and sprouts. Germination starts with imbibition, it occurs when a dry seed absorbs water and begins to swell. Water softens the outer layer of seed. Then it uses its stored food supply to fuel the beginning of growth. The root sprouts...|
|Research Question||How does the amount of sugar in the water affect the rate of germination?|
|Predictions||If the amount of granulated sugar in the water increases, then the rate of germination will take longer. We think this because it will take longer and more effort for the plant to break the extra sugar down.|
|Experimental Design||Using the buckwheat seed, we will put 10 seeds in separate trays. Fill one tray with water and, then the next with water and 1/2 teaspoon of sugar. Lastly, we will put 1 teaspoon of sugar in another tray. We will label the seeds in the tray. After 1 week we will measure the growth of each seed...|
|Conclusion||Claim: The seeds with no sugar in their water germinated faster than the seeds with sugar in their water. Evidence: In our experiment the seeds growth average with 0 tsp of sugar in their water was 6.324 cm. The seeds growth average with ½ tsp of sugar in their water was 0 cm. The seeds growth...|
This is the evaluation
Some sources of error that occurred in my experiment:
The movement of seeds. We had to change paper towels since our paper towels were turning green and slimy which meant we needed to transfer the seeds. This affected the experiment because if the seeds were growing we could have damaged the root hair or stems.
Over watering. This affected the experiment because we probably killed the seeds by drowning them or the water made the paper towel moldy along with the seeds.
Moldy seeds. The overwatering most likely caused the seeds to become moldy which killed them. This affected the experiment because it killed off seeds which caused us to have less seeds to take data about.
To much sugar. This affected the experiment because it probably took away some of the seeds nutrients to germinate.
What would you do differently next time?
Somethings that I would change next time would be less water, less sugar, and not moving the seeds around. I would change the water to 5 ml instead of 10 ml because hopefully it would not make the seeds and paper towel moldy which would end up making the seeds healthier. I would change the amount of sugar from ½ - 1 tsp of sugar to ⅛ - ¼ tsp of sugar because in the article I read it said a very small amount of sugar could help the plant grow better but ½ - 1 tsp of sugar was probably to much. Finally, I would change not moving the seeds around because if the seeds were growing when we moved them then we could have damaged them which caused them not to grow.
How confident are you in your trials?
I am somewhat confident in my results. I am strongly confident in my trials because I did do 10 trials like your supposed to. I am only somewhat confident in my attempt to minimize errors and my use of scientific concepts because I tried hard on them but I just think they are good not great. The only thing is I am only a little confident on my results being confirmed since what happened in the experiment was the opposite of what was expected. In the articles that we read it said that sugar is good for a plant and it would help it grow so we expected that but instead our seeds died and got moldy as well as the paper towel so our group was surprised by that.
Thank you for helping us with our experiment. We had a great time and we learned a lot and had a lot of fun. Stay healthy and have a great year!
I really enjoyed working with you this semester on Planting Science.
I think you have done a nice job in terms of your conclusions. Indeed, as water moves out of the seed when it is placed in sugar or salt water, that can prevent it from taking in the water needed to germinate. As you note, the moldiness of the seeds is also likely to have contributed to their lack of germination. Sometimes the same thing will happen to seeds in the soil outside, especially if it has been a very wet spring. This can prevent a crop from sprouting.
I am glad you were able to participate and that you enjoyed the process! Science can be hard work but I find that the excitement of testing and learning new things is what drew me to this career. I hope you have a healthy and happy rest of the spring semester.
Farewell and Best Wishes
As this research project is now in the final stages of wrapping-up, we wish to thank everyone who participated in this inquiry; the students, mentors, teachers and others behind the scenes. We appreciate all of your efforts and contributions to this online learning community.
Scientific exploration is a process of discovery that can be fun! There are many unanswered questions about plants just waiting for new scientists to consider, investigate, and share.
After the end of the session, we will be updating the platform and archiving groups and projects, after which time new updates/posts will not be able to be added to projects or groups. You have until Tuesday, April 25, 2021, to post ALL of your updates, comments, and goodbyes. Please come back and visit the PlantingScience Project Gallery anytime to view this project in the future. You can search the Gallery by keyword, team name, topic, or school name.
Good bye for now.
The PlantingScience Team
Hi, this is Nevaeh I just wanted to thank you for helping our group and answering our questions it been really nice to work with you so thanks. :)
The y-axis on our graph is showing how long the seeds got in centimeters. We noticed that the seeds with sugar water were very moldy. Since water in the seeds would be going out, the seeds would dry up. Also, we put our conclusion in with our claim, evidence, and reasoning.
I posted my conclusion under the info section. What do you think of the conclusion? Were these the results you expected? Thank you for working with us through this whole experiment! I had a lot of fun working with you and my team!!
This is our final picture. One of our teamates took their seeds home so we only had 2 bags which is totally fine. We found out that the sugar water kills the seeds since there is no growth in the seeds with sugar water. We think the reason they have different growth in different bags is from the water. I had a lot of fun with this expeirement!
Here are my final seeds. The leaves are almost out of the seed coat and the leaves and roots have grown a lot. Adolie's and Neveah's did not grow at all and have no sprouts. This project was really fun. Thank you!
Hi Team! I deleted a picture because your team noticed one of the bags had a last name.
This is what our seeds look like now. The one with 1/2 tsp and 1 tsp of sugar water have not grown at all but the one with no sugar has grown really well. The paper towel is not really sucking up the water for the ones with sugar water and one of the seeds in the 1 tsp of sugar water is growing a little moldy.
Today my seeds looked good and they had grown a lot. The seeds have lots of root hair and the stems are yellowish near the seeds. I was wondering when we should put our seeds in the grow light. Do you have any ideas?
We watered our seeds today and this is what it looked like. For the watering, one bag had half a teaspoon of sugar dissolved in it, another had a teaspoon of sugar in it, and another had just water. All of the bags got 10 ml of water.
We should start seeing germination during the 3rd-5th day. The seed requires water and sunlight to start germinating. And I don't think we have any more questions.
Thank you for the suggestions! I went back and fixed a few things. We are going to measure by cm at the end of the week. To control water, we would use the same water type and add the same amount of water through the experiment. The water amount will be varied because at different points the seed may or not need more versus less water. I checked with our teacher, she said that we can just use the light in the classroom. We would put all of the samples in the same exact spot.
I have a few questions for you. For the experiment, how much water do you recommend using to water the seed? How would you control the amount of sunlight, so it's equal for each seed? Thank you! Also, I will not be here for the rest of the project after this week. I am moving to Detroit and switching schools.
Hi team! For some reason it wasn't letting me comment below the individual posts, so I am putting all my comments here. Welcome Sydney, it is nice to meet you! Lucy, I am glad you will be able to join us this week and I hope your move goes well. I think I replied to all of the other posts below.
I see you have been busy with lots of experimental design for your project! You did a great job updating your info on the page. Here are a few thoughts I had about your design and questions:
--You mention that you will measure the growth of each seed. How might you do so? In other words, what would you specifically be doing or counting?
--In terms of watering your seeds, as you note in your info, the seeds will need water to germinate. You should make sure you dampen the soil, but not have super waterlogged soil, since then you can have issues with fungus growing and preventing the seed from sprouting. This is called "damping off".'
--Do you have any ideas about how you might make sure you add the same amount of water for all the seeds involved? In other words, how can we control the amount of water in the experiment?
--In terms of controlling the amount of light, can you tell me a little more about the source of light in your experiment? In other words, are you using a window or do you have a separate light for the plants? That sounds like another great variable to control!
Looking forward to hearing about your next steps.