Work on this next!
What do we know about plants from our experiences outside of school? What have we discovered in class and background research? What questions about plants interest us?
|Research Question||-Does the density of the spores influence germination rate? -Does the density of the spores influence the hermaphrodite to male ratio?|
|Predictions||What are the possible outcomes of our study given the variables we are working with? What is our explanation for why and how we think this will happen?|
|Experimental Design||What is our plan? Be sure to include enough detail that another group can replicate our experiment. What variables will we test? What variables will we measure and observe? What variables will we keep constant? How will we record our data?|
|Conclusion||What claim can we make from our experiment? What are possible explanations for our results? How do the data we collected and our reasoning with scientific ideas support our claim? What future experiments could be done to expand on the results of this experiment?|
Hey! We communicated with our teacher about using a hemacytometer to count how many spores there are as well as using a smaller amount of water and more dishes. Unfortunately, we don't have those resources. However, we will present our information collected today in another message.
Your experimental design looks good! I know you're not sure about spore #s yet, but do you have any estimates about what you might expect per treatment? Also, would you be able to use a hemacytometer to count how many spores per drop there are? A hemocytometer is just a gridded slide to use with a compound microscope to count cells (or in this case spores).
Also, 10mL increments may be a little much, especially depending on how many spores you will have in solution. It may be more appropriate to dilute by 2mL or 5mL per treatment. Also, do you think it would be possible to do one or two more replicates per treatment? If you can only use 4 dishes for your experiment, that's fine, but if you could use 12 (3 replicates per treatment) then you would have much more statistical power and stronger results if you end up seeing similar patterns for all replicates of each treatment.
Your hypotheses about what you may see sound reasonable and well thought-out. I look forward to seeing photos of your experiment once you get it set up!
We expect the male population to increase as there is more room for males to avoid females.
We expect the germination rate to increase with the more room for spores
We will analyze our spores under a microscope as we will be able to determine the male to female ratio as well as germination rate under a microscope.
I think we are going to use 4 dishes to do our experiment with one of those dishes being our control. We were thinking about also doing our dilutions in increments of 10 mL
We created a diagram of our experiment however it is not allowing us to paste or save it.- nevermind, we figured it out
Can you please clarify what an independent and dependent variable so we can apply it to our experiment of serial dilution?
Finally, what substrate do you plan to grow your ferns on and how many serial dilutions would you use? What dilutions would you like to test?
So, we are thinking we want to the serial dillution to acess the competition among spores assosiated with growth rates. We think that we have the most correct materials for this experiment.
Hey Forest Rascals,
I love your enthusiasm and you made great progress today on your scientific thinking related to the Cfern experiment. I do, however, suggest that you up your game related to being scholarly for the Engage part of your experiment project page. Remember, you are representing Central High School and I know how amazingly fantastic you all are so let's have your work reflect that :)
: Does the density of the spores influence germination rate?
: Does the density of the spores influence the hermaphrodite to male ratio?
Some possible experimental questions-
- We know that sexually reproduced plants are more likely to survive under environmental pressures, when pressured are rates of reproduction increased?
-We are aware that alcohol causes fetal deformaton in humans and their cells and that an alcohol content over 25% will kill a plant. Is it possible that alcohol will effect growth and development of plants under 25%?
-Do different materials in the environment hinder or aid sperm in traveling to an egg (ex sand, dirt, rocks) we would need to make a connection between the materials.
-Is there a way we can produce a sexual or sexual reproduction in the fern?
- will serial dilution within the spores affect the growth rate and competition of the ferns?
It's nice to meet you, Lauren and Avery will not be joining us today because they're at a track meet. It's hard to choose a favorite plant, but i really like cattails.
Hi Liz! I'm so happy to hear back from you. Today in class we talked a lot about the differences between sexual and a sexual reproduction, which is far more complex than i had previously believed. I'm interested to understand about the differences in offspring between plants who reproduce in both ways, for example do they grow differently. I do not know a lot about plants but i quite like aloe plants because they make my skin soft, when i was in Kansas over the summer my aunt and I had one, and it was awesome!
Hi Avery, Gwen, Katie, and Lauren!
My name is Liz and I will be your scientist mentor for this project. I am a PhD student in the Ecology and Evolutionary Biology program at the University of Texas at El Paso. My dissertation project mainly focuses on one plant, the tussock cottongrass (Eriophorum vaginatum), and how its DNA changes in populations across the arctic landscape. I really enjoy my research as it allows me to investigate how the DNA of plant populations is shaped by the movement of seeds, pollen and the environment.
When I'm not doing lab work or writing chapters I enjoy riding my bike, hiking, going to shows, playing the drums and dancing.
One of my favorite plants is the Stalked Bulbine (Bulbine frutescens). It belongs to the aloe family, has cute orange flowers with bearded stamens and is a very drought tolerant, hardy desert plant. What are all of your favorite plants and why?
I look forward to working with you this session. Let me know what hypotheses you come up with when you start brainstorming project ideas!
Hello! My name is Avery and I am very excited to learn more about this website and this project. My interests include soccer, track, tennis, and I am very interested in psychology. I can't wait to jump on in to this project and learn more about the types of experiments we will do.
Hello. My name is Gwen and I am very intrigued to learn more about ferns and the roles they play in our ecosystem. I also would like to clarify some of my understanding on the scientific processes. I am looking forward to meeting and working with you throughout this project. Some of my interests include student senate, debate, and band. My aspirations for the future are political sciences and education. Thank you for taking your time for this project!
Hi! My name is Katie, I'm very exited to meet you. I enjoy swimming, tennis, and math. I'm very eager to learn more about conducting experiments.
Hello my name is Lauren, i am hoping to gain a better understanding of the scientific method, and the ferns that we will be working with. Some of my interests include cross country and track, as well as soccer.
Welcome to your PlantingScience project page!
Welcome to this community of plant researchers. As your team plans and conducts your own research project, you will be mentored by a scientist. The mentor's role is to encourage and guide you through the process of scientific discovery. The more you share your ideas and research information online, the more your mentor can help. You can also find out more about your mentor. What is their research about? Why did they go into science? What do they like to do when they are not working?
You may also hear from this classroom’s assigned scientist liaison. Liaisons work with several mentors and help make sure the conversations are going strong. They may also offer some extra advice or encouragement.
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Best wishes as you start this scientific journey. We are all pleased to share this experience with you. Have fun!
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