Conversations - use this space to communicate about this project
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April 30, 2012 | 4:37 AM |
casey700
(Student, Killer Bees - CRHS_S12_P11 · -1)
hey! how did your expirament work? this was a good idea |
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April 6, 2012 | 12:04 PM |
Dr. Catrina Adams
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. Please come back and visit the PlantingScience Research Gallery Archive anytime to view this project in the future. You can search the Archive by key word, team name, topic, or school name. Good bye for now. Warm regards, The PlantingScience team |
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March 23, 2012 | 1:12 PM |
Dr. Catrina Adams
Looks like you are in the final stages of your projects It’s great to see that teams from your school are wrapping up and posting conclusions. Enjoy the final stages of your project, and feel free to post any final comments or questions you have for your mentors. |
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March 19, 2012 | 1:04 PM |
Dr. Catrina Adams
So what's the next step? Hi team KOB3, Sounds like you are really rolling and learning a lot about what makes celery bend. I see that you have a control group for each experiment, which is great. But just from reading the above I wonder if you are changing just one variable at a time or multiple variables. So, for example, did you both change the sugar concentration AND whether you removed the epidermis at the same time? I guess I'm reading your number 2 description of the experimental design and the conclusions and am a little confused about whether you were testing sugar or presence/absence of epidermis, or width of the piece. Mostly scientists test one variable at a time because otherwise it's hard to figure out which of the variables was responsible for the bending. It's also hard to figure out how to come up with a control group when you have more than one variable. However, sometimes it is interesting to follow up a series of experiments that tell you some individual factors that cause bending with an experiment that combines factors. Once you know that temperature affects the bend and sugar concentration affects the bend, it can be interesting to see whether temperature plus sugar concentration cause more or less bending that either on their own would cause. Sometimes you will see what scientists call "synergistic effects" where when several factors are combined, they do better than if you just add up what the two effects would be individually. But how would you set up controls for an experiment like that? You can see how complicated it would get as you add variables. But maybe I'm misunderstanding what you've written above. Can you help me figure it out? So, you've tried temperature, different widths, removing the epidermis, and adding sugar, is that right? What is next for team KOB3? |
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March 8, 2012 | 9:34 AM |
brendank14
(Team Member)
Coury questions Osmosis occurred when the celery curled because the water came from the outside to the inside. Sugar will not help. Diffusion will go out because it will be less concentrated. It will not help bend.the out side will bend will bend the most. Other groups found that the smaller the celery the more it will bend. |
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March 8, 2012 | 8:30 AM |
snikwad
(Student, Tree Huggers - LCH_S12_C04 · -1)
celery again I did not mean that in a negative way. |
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March 8, 2012 | 8:29 AM |
snikwad
(Student, Tree Huggers - LCH_S12_C04 · -1)
Celery It does not look like your celery has curled from your pictures. What did you do? -Lebron James |
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March 8, 2012 | 8:29 AM |
hiimandrew
(Student, Team Plant Swag - LCH_S12_C01 · -1)
you guys should try a smaller, thinner piece of celery! Also try using a 600mL beaker with 250mL of water! My group got good results! (see team plant swag) -Lebron |
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March 6, 2012 | 5:33 AM |
Mrs. Coury
(Teacher)
KOB3- Can you explain the osmosis that occurred? Why do you think sugar water will help? Which way will diffusion occur then? (Think about the egg in syrup.) Will that help it bend? What did other groups find? What part of the celery will bend most? ~Mrs. Coury |
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March 5, 2012 | 6:47 AM |
Ms. Johanna Oosterwyk
(Scientist/Mentor)
Lots to think about Goodmorning, Are you seeing more bending in the sugar sample? What other substances would you add to the water? |
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March 2, 2012 | 9:02 AM |
jason16
(Team Member)
Response to questions You can tell if it's alive it it still absorbs water. If it dies the edges will startto turn browns. It will not suck up liquid. If you kept it in the fridge for a year it would die because it wouldn't get any sun light. It would shrivel up and turn brown. |
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March 2, 2012 | 8:59 AM |
jason16
(Team Member)
new Hypothesis 2 If a 10 cm piece of celery is put in 1000 mL of water with suger then it will bend a lot more thenit would if it wasin just cold water. |
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March 1, 2012 | 10:46 AM |
Dr. Catrina Adams
Just stopping by Hi team KOB3, Looks like you've got some interesting data and I'm excited to see how the next experiment goes. I thought I'd check in with you until your mentor Ms. Oosterwyk comes back online. I'm curious about your ideas about whether the celery stalk is alive or not. You say it's alive because it's a plant, and plants are alive, and also because it sucks up the water to drink. Then you ask if it would die if it's in anything but water. How will you tell if it is alive or if it dies when it's put in something other than water? What will it look like when it's dead? Will it stop sucking up water (or other liquid)? If you kept the celery in a fridge for like, a year, would it stay alive? How would you know when it died? |
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March 1, 2012 | 9:18 AM |
nerak15
(Team Member)
Data 2x9x13 tubs 2 20 cm long celery pieces 1,000 ml of water |
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February 28, 2012 | 8:26 AM |
jason16
(Team Member)
Follow Up Questions 1) What caused this to happen. 2) How much water did the celery suck up. 3) Did the mass increase. 4) Would it die if it was in anything but water. 5)Will the celery absorb more water if it stayed longer. |
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February 28, 2012 | 8:14 AM |
nerak15
(Team Member)
RE : things to think about We did all of are data on one and the questions on another one. F) Questions 2) We saw that the red food dye was on the bottom of the celery and on the sides. Only a little color was on the leave. 3) We think that celery is alive because it sucks up the water to drink. Also when looked under the microscope the cell were rectangles and that would be a plant cell. Celery is a plant and plants are alive. |
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February 27, 2012 | 4:18 PM |
Mrs. Coury
(Teacher)
Things to think about... Hello! Using Group A, B, and C is a great idea, but you need to clarify what they represent. On your summary, try to connect your descriptions to your numbers. Brad and Jason be sure to follow through on your posts. ~Mrs. Coury |
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February 16, 2012 | 8:21 AM |
brendank14
(Team Member)
Summary Group A: Group A was really squishy and got skinnier. It is more curved and got less smooth. Group B: Group B got skinnier and the green color faded. Group C: Group C didn't have that much change, except it slightly curved. |
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February 16, 2012 | 8:17 AM |
nerak15
(Team Member)
Team project questions (5) 1) Why does the salt make the celery more bendable? 2) Why did the mass go down in some of the groups? 3) Would the celery have a salty taste because of the salt in the water? 4) Why was the celery in the water still hard and crunchy? 5) Would just plain water be better for the celery then salt water? Mass average day one : (Group A 7) (Group B 6.7) (Group C 5) Length average day one : (Group A 9.6) (Group B 10.1) (Group C 9.7) Width average day one : (Group A 1.5) (Group B 1.3) (Group C 1.1) Thickness average day one : (Group A 1.1) (Group B 1) (Group C .8) Mass average day two : (Group A 6.25) (Group B 5.2) (Group C 5.2) Length average day two : (Group A 9.5) (Group B 9.6) (Group C 10) Width average day two : (Group A 1) (Group B 1.1) (Group C .87) Thickness average day two : (Group A 1) (Group B 1.1) (Group C .8) Hypothesis : 1) If the celery is over night in fresh water, then it will become heavier and smoother but stay the same length. 2) If there is salt in the water, then the celery were lower in mass. |
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February 13, 2012 | 10:02 AM |
Ms. Johanna Oosterwyk
(Scientist/Mentor)
Hello! My name is Johanna. I'll be your scientist-mentor. I study plants in the Department of Horticulture at UW-Madison. I'm looking forward to hearing your ideas and helping to answer your questions. |
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February 13, 2012 | 8:22 AM |
bradley4
(Team Member)
Hello my name is Bradley |
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February 13, 2012 | 8:21 AM |
nerak15
(Team Member)
Hello. Hello my name is Nerak. I'm from Lake Orion High School. I love cheering, singing, and dancing. Most of all I love being outside camping, scuba diving, and doing daring things. Im glad that we will be working together. |
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February 13, 2012 | 8:20 AM |
jason16
(Team Member)
Hello Hello, my name is Jason. I am a ninth grader at Lake Orion HIgh School. I play hockey and lacrosse. |
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February 13, 2012 | 8:20 AM |
brendank14
(Team Member)
Hello Hello my name is Brendan. I am a nineth grader at Lake Orion High School. How is your day going? |
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February 13, 2012 | 8:03 AM |
Dr. Catrina Adams
Welcome! I am happy to welcome you to this community of plant researchers. Your team has the opportunity to be mentored by a scientist to help you develop and perform your own research project. The mentor's role is to encourage and guide you through the scientific process of discovery. The more you share your ideas and research information online, the more your mentor can help. Your scientist mentor for this project will be Ms. Johanna Oosterwyk from University of Wisconsin-Madison. Please introduce yourself and post some possible research topic ideas to get a conversation rolling. These resources are available to help you get started: Thinking Like a Scientist / Working Like a Scientist Designing Experiments Guide to Using A Spreadsheet Best wishes as you start this scientific journey. We are all pleased to share this experience with you. Have fun! Sincerely, The PlantingScience team |
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