What will happen in this scenario?
Prediction:
What will happen after 24 hours?
Procedures:
1.
2.
3.
etc
Pg 100 Data Table for Starch Iodine Lab
|
|
Starting Color
|
Color after 24 hours
|
|
Solution in Beaker
(Iodine Solution)
|
Amber
(looks like apple juice)
|
Lighter
yellow
|
|
Solution in Bag
(Starch solution)
|
White
opaque (looks like milk)
|
Starch
has settled to the bottom of the bag, after mixing, light purple-greyish
opaque solution
|
Conclusion (also on pg 100) Answer the following questions in a paragraph
- Based on your observations, which substance moved, the iodine or the starch? How did you determine this?
- The plastic baggie was permeable to which substance?
- Is the plastic baggie selectively permeable?
- Sketch the cup and baggie as part of your conclusion paragraph. Use arrows to illustrate how diffusion occurred in this lab.
- What would happen if you did an experiment in which the iodine solution was placed in the baggie, and the starch solution was in the beaker? Be detailed in your description.
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