Science Enhanced S&S Biology - Virginia Department of ...

2. Add tincture of iodine solution until the water is noticeably colored. Mix well. 3. In a separate space away from possible contamination, put 100-200 mL of water in a sandwich bag. 4. Add 5–10 mL of the starch suspension. Squeeze gently to mix. 5. Tie off the bag. 6. Rinse the outside of the bag well. 7. Place the bag in the beaker of the ... ................
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