Investigation of Potato Slices in Various NaCl Solutions

Experiment conducted by the National Team of Iran at IYNT 2013 involving slicing potatoes into rectangular bars and immersing them in NaCl solutions of different concentrations to observe how the slices behave. The experiment aimed to study biological side contouring, propagation regulation, and the impact of salt concentrations on the potato slices.

• Potato Experiment
• NaCl Solutions
• Biological Side
• Propagation Regulation
• Iran Team

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1. National Team Of Iran Mohammad mahdi malek Chakameh mallahzadeh Parmis tabari Negin nemati nia IYNT 2013 - Turkey National Team of IRAN, IYNT 2013 4/10/2013 1

2. Problem 31.Slice potato Slice a potato into a large number of long similar rectangular bars 5 cm long. Prepare stock solutions of NaCl of six various concentration from zero to a saturated solution place the slices into the solutions . Observe and investingate the behavior of the slices. National Team of IRAN, IYNT 2013 4/10/2013 2

3. Theory : Biological side Contouring the experiment Hypothesis propagation regulation Main approach Experiment My design Analyzing table Analyze graph Observation Conclusion: The answer National Team of IRAN, IYNT 2013 4/10/2013 3

4. Biological side Propagation regulation: The water or liquid go from heavy part to watery part. National Team of IRAN, IYNT 2013 4/10/2013 4

5. propagation regulation National Team of IRAN, IYNT 2013 4/10/2013 5

6. Contouring the experiment In the first stage we had six long similar rectangular bars(4cm). We made some solutions with different sup of salt and put the potatoes in them. We had to see the changes National Team of IRAN, IYNT 2013 4/10/2013 6

7. Hypothesis According to the propagation regulation we prospected the cup with saturated solution get smaller than the normal condition. National Team of IRAN, IYNT 2013 4/10/2013 7

8. My design National Team of IRAN, IYNT 2013 4/10/2013 8

9. Analyzing table In experiment we have six various cups from 0 to saturated solution. Amount of salt 0 spoons of spoon 1/3 of spoon of spoon 1 spoon Saturated First 4 4 4 4 4 4 At last 4 3.8 3.9 3.7 3.6 3.6 National Team of IRAN, IYNT 2013 4/10/2013 9

10. Analyze graph 4 3.9 3.8 First At last 3.7 3.6 3.5 3.4 0 spoons of spoon 1/3 of spoon of spoon 1 spoon Saturated National Team of IRAN, IYNT 2013 4/10/2013 10

11. Observation Changes: According to the propagation regulation we saw that they are softer than first. They are shorter. The colors had been changed. National Team of IRAN, IYNT 2013 4/10/2013 11

12. Conclusion According to Propagation regulation we gather that the potato in the cup with saturated solution will be darker and the size of it would be smaller. The size of potato in cup with: 0 >1/4>1/3>1/2>1>saturated Spoons of salt. National Team of IRAN, IYNT 2013 4/10/2013 12

13. Thanks for your attention National Team of IRAN, IYNT 2013 4/10/2013 13