I need your help. I have a dancing raisins experiment here please go and check it out.
http://www.elmhurst.edu/~chm/demos/danceraisins.html
I have a question.
a) why some raisins turned or flipped over as they sank?
Before that, I would like to tell all of you what I wrote for my prediction and hypothesis before I did the experiment.
My prediction: The raisins would probably float up and down and will turn and flip when they sink.
My hypothesis for this prediction: The mixture of water is gasy and the bubbles on the raisins causes them to "dance" and move about.
My observation: Bubbles collects on the irregular surfaces of the raisins, and the raisins started floating. As soon as the gas collected on their surfaces were released into the air, the raisins started sinking and everything repeats till the raisins all sink to the bottom of the beaker.
Now that all of you know my answers, I have five more questions for you related to my answers and I hope you can help me.
1. How does your prediction compare with your observation?
2. What conclusion can you draw from the observation?
3. How does your observation support your hypothesis?
4. Do you think this experiment is sufficient to support hypothesis? Why?
5. If you are allowed to change one set up in the experiment, so that the observation will be different, what changes will you make and why?
okay. i have finished with my questions. 10 points best answer will be given to the person who gives me the perfect answer in a examination manner.
Bunnie Bones
Answer: Raisins lack 100% geothermal properties.. only good 4 food.