Experimental Craze/ Woodstock High School / WSHS_S09_W39

School Level: High School
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Research Information


Research Question
How do different types of water; tap, purified, salt, or even sugar water, affect the way plants germinate?

Research Predictions
Our group thinks that the tap water will allow the plants to grow the most. It's filtered but not completely purified.

Experimental Design
Steps:
1)Obtain plastic bags.
2)Place seeds within the bag.
3)Soak the filter paper in purified (bottle) water, regular tap water (from the sink), salt water, and sugar water.
4)Place filter paper in bags with seeds; the seeds are Alfalfa, Barley, Peas, and Sunflower seeds.
5)allow time for germination

Research Conclusions
The last day supported us. We saw that the tap water did in fact germinate/grow the most and fastest. The purified water came second, and the salt and sugar water seeds did not grow at all.

As our hypothesis stated, we thought that the tap water would germinate the fastest. Our hypothesis was supported.


Conversations - use this space to communicate about this project


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March 31, 2009 | 3:06 AM | Lisa Kanizay  (Scientist/Mentor)

Nice working with you
Hi guys,

I hope you all enjoyed doing your project and learned from it. To answer your sugar question...the seeds in sugar probably didn't germinate for the same reasons the seeds in salt didn't germinate. your particular seeds might not like sugar, or the sugar might have been too concentrated, and not allowed the place to uptake as much water as they needed to grow. Sugar, like salt will form crystals and shift the direction of water movement (osmosis) away from your plant and into the sugar solution. And, like salt, sugar will dry things out faster than they would dry out with only water. I hope this helps and makes sense.

It was fun to work with you!
Lisa
March 30, 2009 | 12:24 AM | PS team

Good bye
Thank you everyone who participated in this inquiry!

We hope you are going away with some new insights about how science works, and confidence that you can take on new scientific challenges. There are a lot of fascinating research questions---just waiting for young investigators to join in the fun.

Best wishes for the remainder of your school year!
Jennifer
March 27, 2009 | 2:54 AM | krisp1313  (Team Member)

It is done
I have posted the graphs and other pics with the seeds. The research conclusions have been updated and posted too
March 27, 2009 | 2:49 AM | dreamlove  (Team Member)

Thanks....<3
Thanks so much for all the help and info over the period of time we have used for our project. And I had one more question, i know why the seeds in the salt water bag did not grow but I was wondering why the seeds in the sugar water bag did not grow and why it caused the bag to dry out in the end?
Thank you again for all the help?
March 25, 2009 | 7:24 AM | Lisa Kanizay  (Scientist/Mentor)

Your mysterious spots
Hi guys,

Your pictures look good and your results sound great! About the spots...from what you say they were probably some kind of mold or bacteria. Since they grew on the filters and not the seeds it could be that the filters were slightly dirty. It is not uncommon for mold to grow on moist paper in this type of situation. If you were to leave the seed next to the mold spots long enough it might spread to the seed. In any case if it didn't inhibit seed growth I would worry about it. It is probably not from the seeds. Do you guys have any more questions?

lisa
March 25, 2009 | 3:10 AM | dreamlove  (Team Member)

But...
the spots were on the filters not the seeds so i was wondering if that had something to do with the coffee filters or more with the seeds?
March 20, 2009 | 7:14 AM | krisp1313  (Team Member)

They were mold, we think
The spots were in the purified water bag. Our group ended up thinking that those spots were actually mold spores. The colors were pink-ish, green, yellow, and some black-ish to grey-ish.
March 19, 2009 | 8:22 AM | doctor417  (Student, Dark Twilight Doctors - SM_S09_W01 · 3)

Ciao!
Hi I'm Kelly (team Kaylee comented on) Your project is cool and we even thought about it. ANyway Hope to find out more! Later
March 18, 2009 | 1:42 AM | Lisa Kanizay  (Scientist/Mentor)

your questions
Can you all please describe what these spots are you are talking about. Which seeds are they on? Did these seeds germinate? When did the spots appear, right away or after germination, or what? And were the spots actually on the seeds? - because you write that they were on the water and on filters. - what filters?

The more specific you guys are when you ask me quesions, the easier I will be able to answer them for you. Also do you understand why your seeds in salt and sugar never germinated?

Lisa
March 16, 2009 | 8:45 AM | Ms. Forsyth  (Teacher)

Spots - clarification please :)
Katie/Krishan,
Please clarify which seed types had the yellow spots that you noticed - that will give Lisa a better idea of what it could be. Also, you COULD try to research this online as well :) Ms. F
March 16, 2009 | 3:26 AM | dreamlove  (Team Member)

Actually...
We actually noticed yellow spots on most of our filters and we still want to know all the anwsers to Krishan's questions.
Please and thank you :)
March 16, 2009 | 3:16 AM | krisp1313  (Team Member)

Question
we noticed that there were yellow spots on purified water. Would you happen to know what the yellow spots are? Are they a necessary process in the growth of the seed?
March 15, 2009 | 11:05 PM | Lisa Kanizay  (Scientist/Mentor)

your results
Hi guys,

I think you have gotten some good results. Here is some advice on how to interpret them.

As you all know one of the things plants really need to grow is water. You all should think about osmosis and how this process of water diffusion is related your project. Think about how concentrated your solutions of salt and sugar water were. Think about these things and let me know what you can come up with as a reason your salt and sugar seed never germinated. If you need more help let me know.

Lisa
March 15, 2009 | 9:56 AM | rinapattz13  (Student, Dark Twilight Doctors - SM_S09_W01 · 3)

Hi
Hi I'm Rina. Thanks for the tip Kaylee. I like your project, we were thinking of doing that too and changed it last minute. Couldn't help but read your comment board, you guys are really funny. Well check out our blogs sometime.
Ciao
March 15, 2009 | 8:58 AM | taylor828  (Student, Dark Twilight Doctors - SM_S09_W01 · 3)

Hey!
Hi, I'm Cassidy. I'm from the school Kaylee commented on. I think your project is cool and i can tell that you guys are too. Keep up the good work and keep writing more funny comments! ;-)
March 15, 2009 | 3:31 AM | dreamlove  (Team Member)


Ok I did the homework. I used the team Func from St. Andrews Episcopal School.
March 14, 2009 | 6:28 AM | krisp1313  (Team Member)

again
Again, is this where we post our thoughts on other projects from other schools?
March 14, 2009 | 6:23 AM | krisp1313  (Team Member)


I want to ask a question though. Won't the soda attract more dust because it makes the surface sticky? Won't the dust or allergens affect the germination process?

Would you happen to know, Ms. Kanizay?
March 14, 2009 | 6:14 AM | krisp1313  (Team Member)

huh?
why?
March 14, 2009 | 6:13 AM | krisp1313  (Team Member)

Continuation2: I have chosen my school to comment
This one is close to our question because it is trying to see if water or soda would affect the germination rate. We are trying to see if different types of water would affect the germination rate. After friday, we know that it does. The salt and sugar surpress the germination, not allowing it to become germinated. I know that I am saying "germination" a lot, but I need to.
March 14, 2009 | 6:10 AM | krisp1313  (Team Member)

Continuation: I have chosen my school to comment
The research question from this school was the closest to ours. I could not find another one that was closer. The thing that they are trying to see is if the seeds will germinate faster in soda or water.
March 14, 2009 | 6:09 AM | krisp1313  (Team Member)

I have chosen my school to comment
If we are supposed to post comments here, then the one I choose is the one from Opelika Middle School
March 14, 2009 | 5:49 AM | krisp1313  (Team Member)

finished
I am all done with the 2nd journal
March 14, 2009 | 4:31 AM | krisp1313  (Team Member)

warning!
We will post our Journal #2 in about 30 minutes. I have to get all of the information and process them into one document.
March 14, 2009 | 4:29 AM | krisp1313  (Team Member)

spell check
You misspelled "coming", Kaylee
March 14, 2009 | 4:28 AM | krisp1313  (Team Member)

Changes and clarifications
We have changed some things. First off, we will have 2 sets of seeds in each bag. I set is comprised of 2 seeds. We intend to put 2 seeds inside the filter/coffee paper, and 2 seeds outside of the paper. We soaked each filter paper in the different types of water for 2 minutes each. The second thing is really nothing changed, but something specified. It is that we will have a 100% concentration of the sugar and salt water. The measurement given to us by our teacher is 10mL of water with 10g of either salt or sugar. In order to get enough water to soak the filter paper, we mixed 20 mL of water and 20g of either salt or sugar.
March 13, 2009 | 8:20 AM | Surfergodess101  (Team Member)

Project
The project is comeing along fairly well, the seeds have already sprouted but its too early to tell which one is working better in terms of water type.
March 11, 2009 | 8:35 PM | Lisa Kanizay  (Scientist/Mentor)

good progress
Hi guys, thanks for keeping things up to date. Your plan seems good. Make sure to use the same number of seeds and amount of liquid in each bag. This is a rather large experiment you have, it will be interesting to see how it turns out. Which seeds will grow the best in which type of water. Let me know if you have any questions. I'm excited to see how your experiment goes!

Lisa
March 9, 2009 | 3:19 AM | krisp1313  (Team Member)


we are the Experimental Craze-ys
March 9, 2009 | 3:17 AM | dreamlove  (Team Member)


kaylee and Krishun are worse than two angry possums fighting over an eggshell. I had a moment, forgive me.
March 9, 2009 | 3:10 AM | Surfergodess101  (Team Member)


She's a scientist...i'm sur she'll b ok.
March 9, 2009 | 3:08 AM | dreamlove  (Team Member)


what have i said about scaring the scientist?
how will she ever be able to help us if she's scared?
March 9, 2009 | 2:59 AM | krisp1313  (Team Member)

All up to date
I have typed up the research predictions and (as of right now) experimental design. Everything should be up to date, unless you want to tell us anything else.
March 9, 2009 | 2:56 AM | Surfergodess101  (Team Member)

Soil/paper towel.
We're growing our seeds in a plastic baggie with filter paper soaked with the dif. types of water. We just want to see which grows the plant better, so it doesnt matter how big it grows.
March 9, 2009 | 2:55 AM | dreamlove  (Team Member)

Seeds
We are using barley, sunflower,alfalfa, and peas as a way to test with larger and smaller seeds to add variety to our experiment.
March 3, 2009 | 4:06 AM | Lisa Kanizay  (Scientist/Mentor)

experimental design
I looked at the document you posted. It looks good. Make sure to post your predictions and specific design procedure on this web page too.


March 3, 2009 | 4:05 AM | Lisa Kanizay  (Scientist/Mentor)

Nice to meet all of you!
Hi guys,

I'm Lisa, your scientist mentor. I went to college at the University of Denver and now I'm getting a PhD at the University of Georgia. I study cell division, specifically how chromosomes properly segregate during cell division. To do this I use Corn.

Do you all have a team picture you can post?

I like your research question, I think this will be an informative experiment to give you information about the best conditions for plant growth. It does not matter if you try to grow your seeds on a paper towel or in soil. Whatever you choose to do the most important thing is to keep it consistent for all your seeds. You want all the conditions (except the one you are testing - water type) to be the same for all your seeds. Like expose them to the same amount of light, use the same volume of water type to water them with, grow them all in the same medium (soil, sand, paper towel, or whatever you choose). Just as a heads up, if you do grow them on a paper towel they should germinate fine but probably won't grow into a big plant without some sort of soil.

What kind of seeds are you going to use?

Lisa
March 2, 2009 | 8:50 AM | PS team

Welcome Experimental Craze-ys
I am happy to welcome you to this community of plant researchers. It looks like you already have a lot of questions and some ideas for a Research Question.

Your scientist mentor, Lisa Kanizay from University of Georgia, will help you focus your ideas as you develop and refine your research question and experimental design.

Best wishes as you embark on this scientific journey. We are all pleased to share this experience with you.

Have fun!
Jennifer Potratz
and the PlantingScience team
March 2, 2009 | 3:21 AM | krisp1313  (Team Member)

sorry
sorry for scaring you, scientist. My group and I are very different
March 2, 2009 | 3:21 AM | Aleshk912  (Team Member)


WE'RE NOT VERY NORMAL BUT THEN AGAIN NORMAL IS OVERRATED
March 2, 2009 | 3:20 AM | Aleshk912  (Team Member)


Krishan is really mean to me haha just kidding he's ok we don't always get along but eventually we've learned to tolerate each other
as for any major meltdowns well... i can't make any promises
I like Cheez and Krakers
March 2, 2009 | 3:19 AM | dreamlove  (Team Member)

Wow
I'm sorry if anything posted here may scare you.
If not now probably later.
My apologies now.
Bye
March 2, 2009 | 3:15 AM | krisp1313  (Team Member)

We'd like to know more about you
What about you Dr. Scientist? What are some of your favorite things to research? Did you become a scientist b/c you wanted to? Which college did you go to?
March 2, 2009 | 3:12 AM | krisp1313  (Team Member)

Hye from the group: Experimental Craze
Hi, my group partners made me say this: my favorite color is green (it really is not). I was coerced into saying this, by my weird partners. My name is Krishan, and my partners' names are Kaylee, Stephanie, and Katie. NOTE: The partner with the name Stephanie is extremely crazy- one of the most crazy people I know. She talks about the most random things, and sometimes does not make any sense.
NOTE 2: Kaylee is another team member, and she is funny, but kind of bossy.
NOTE 3: The next partner is Katie, and she is a nice person.
Finally, about me. I am an Honor Roll student, and I like soccer, along with reading and watching TV.
March 2, 2009 | 3:11 AM | Surfergodess101  (Team Member)

Hye
Hello, My Name is Kaylee & im part of the group Expiramental Craze, along with Krishan, Stephanie, and Katie. We are testing the growth of plants in different types of water.
Beware of Sephanie: She haz a high tendancy to be very crazy, but not in a bad way. She's very random as well.
Katie's the shy one, and Krishan's the brain.
Im a mix of all, crazy, outgoing, smart.
What about u?
March 2, 2009 | 3:11 AM | Aleshk912  (Team Member)

Hello
hello my name is stephanie and i'm part of my science group "Eperimental Craze" we picked it b/c it's so rock and roll
I am not ur average girl i like too laugh a whole lot and sometimes out of no where I am pretty crazy and wild i like to party but i also know how to behave when i really have to i kid around a lot but I pride myself on being a very supportive and understanding friend, and I like to do gymnastics and that's alll u need to know
tell me about u =P



















i like cheeze
March 2, 2009 | 3:09 AM | dreamlove  (Team Member)

Hello
Hi,
I'm part of the team Experimental Craze. My name is Katie, and i enjoy science, for the most part. I love to twirl batons and read books, I'm kind of a nerd.In this project we want to test how water, the purity of it, affects how a planrt grows.Will the fact that we are growing the plant in a paper towel effect our data? In my group is Krishan, Kaylee, and Stephanie. Krishan is smart and nice, Kaylee is funny and outgoing, and Stephanie is a bit crazy but nice nevertheless. Overall our group isn't too bad and I think, hope, that we can make it through this project without any major meltdowns. Fingers-crossed!




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