|Explore||All seeds contain a diploid embryo and a food supply. The diploid embryo contains the root, the stem, and the leaf, which are called cotyledons. Most of the seeds have a shell that is called a seed coat. Dicots (plants with two cotyledons) store their energy reserves in their leaves. Monocots...|
|Research Question||How does the type of liquid affect the germination of the seed?|
|Predictions||If we change the liquid, then water will do the best while the alcohol in the hand sanitizer will kill the seed. This is because the water is the thing that a plant needs to grow and the alcohol in the hand sanitizer will kill the seed.|
|Experimental Design||Control: Amount of light, water, and temperature of water and area Independent Variable: Type of liquid Dependent Variable: Growth of plant at the end of a week. 1. Collect materials. Materials: 50 buckwheat seeds, 5 paper towels, 5 plastic bags, beef broth, carbonated water, water, hand...|
|Conclusion||Claim: Watering seeds with Carbonated water makes them grow better. Evidence: Carbonated water had a average measurement of 6.9 centimeters. Hand Sanitizer grew the worst, heck it didn’t even grow at all. Apple juice was second worse with beef broth being second best. Water didn’t have a...|
Dylan couldn’t measure the seed because they were all tangled. This soiled the experiment because without a proper measurement from Water we can't really solve the question. In the future we can spread the seeds farther from each other so there is little chance of them getting tangled,
Tim, apple juice, saw many types of mold in his bag of seeds. This might have been because the sugar in the juice had fermented, or because he forgot to wash his hands before handling the seeds. This killed or stunted the growth of a few of the seeds and left our findings maybe a bit wrong. To prevent this in the future we can keep human contact with seeds to a minimum, to reduce the amount of bacteria that gets on the seed.
I didn’t water my seeds every day, for I saw that my bag was still wet even after a few days, maybe my measurements of 5 ml were accidentally 5 cl, but to make sure this doesn’t happen next time, we can double check our measurements and measurement devices respectively.
I am somewhat confident in this investigation because we conducted ten trials and used scientific principles and concepts, but the attempts of error we considered were not the same as the errors we faced. We thought we had accounted for every problem, but we didn’t consider the idea of mold getting into the seed containment bags. If we could have prevented this, our results might have been more correct. We used ten seeds, just incase a few died. At least 1 died in each, this was expected but we didn’t know that mold could spread between seeds so fast. We tried to clean out the mold and Tim changed the apple juice paper towels daily, but the mold still spread and plant lives were still lost.
Hm, I would say to think about how you could have measured the control roots, or another way of measuring the roots where it would not matter if they were tangled. In some of the graphs "length of the seed" is a little confusing - is it just length of the roots? Maybe mass (weight) of the seedling could have been measured, that way the tangling would not have mattered? Really interesting results here, great work everyone!
These graphs look exciting! Do you have total growth for the controls as well? I cannot read the full conclusions...
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.
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The PlantingScience Team
Exciting results coming in! Looks like none of the seeds in the hand sanitizer treatment have germinated yet - is this true?
Interesting that there were so many types of mold - where did you get these seeds?
My seeds were getting very close to shedding their seed covers and exposing the first leaves to the sunlight. They roots never got very brown, and all of the plants looked healthy except for the moldy one.
In the end, I had at least 4 different varieties of mold in my bag. I had some fluffy white, grayish-green, bright yellow, and a red/orange. Earlier I also had a grayish-white. I think that I had waaaay too much fun describing my mold.
So I yesterday I saw that one of my seeds was molded over at the opening where the root was trying to come out, and I'm a little confused because the two seeds on either side of the molding one are growing. The bag's only been opened to water, so there's little chance of bacteria getting in, and the water came from the tap. Do you think it was just a bad seed?
Oh the pictures look great! Are you recording data? Where do you think the mold came from - the liquid, the seed, or some other source?
The pictures look great - so exciting! How often will you re-apply the different liquids?
Hi all, I'm reading through your predictions now. Are you trying to understand if a certain liquid will kill the plant, or if it will lead to slower germination or growth?
Hi Colin, I went to South Africa for a total of four times for 2-6 weeks at a time. I was still living in the US but would go there over the summer to collect samples and data!