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

1. Fill a 500-mL beaker half full of water. 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 ... ................
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