Dear Janani and Manasa,
Upon further research, I have found that the scar on the soybean that we previously thought to be the radicle, is in fact a part of the plant called the hilum. The hilum's function is to provide an opening for water to enter through.
An interesting aspect of our seeds, was that they began to germinate at about 24 hours into the experiment - the usual germination time is around 48. This only happened for the ones soaked in water, however I did notice that the ones soaked in water and vinegar were bulging slightly at one end. There are no notable changes in the soybeans that were scored or the ones that were burnt.
Help us grow!
Your contribution at any level will go directly toward increasing capacity to serve more teachers and students and it will help to sustain the program. Get a print copy of the book Inquiring About Plants: A Practical Guide to Engaging Science Practices by Uno, Sundberg and Hemingway with a donation of $30 or more.
Interested in expanding open inquiry opportunities in the classroom?
We are looking for new teachers for our Fall 2019 Session.
Each week we feature some of the best projects of the current session here. Go to the Star Projects Gallery to see all the excellent work by star teams in past PlantingScience sessions.
This material is based upon work supported by the National Science Foundation under Grant No. 1502892.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
“I liked that we didn’t know what was going to happen before we did the experiment. Instead of being taught something and then just doing an experiment to prove it, we made an attempt to find out what would happen ourselves.”
- PlantingScience Student
“At every opportunity, all involved kept reminding my students of the process that real science requires. This helped me to convince my students that they are really doing science - not just play acting until some future date.”
- PlantingScience Teacher
“It is a lot of fun interacting with students from an age group I don’t have the chance to spend a lot of time with. It is a good reminder of where public knowledge of plant science stands, and a great opportunity for me to practice explaining key concepts in a simple and straightforward way.”
- PlantingScience Mentor