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yes, iodized does
Science Fair: Preserving Foods
Do Some Colors of M Melt Faster than Others? | Education.com
Science Fair: Will Some Colors Keep You Cooler than Others?
Science Fair: Arch Magic: The Unbreakable Egg
Science Fair: What Makes Ice Melt Faster?
Which cut flower lasts the longest? Great for grades K-5.
First grade science fair ideas
Doing this for Noah's sciend project for first grade. Do Some Liquids Expand More than Others when Frozen?
4th grade science fair ideas
Determine how age affects the speed that someone can change the focus of their eyes between near sightedness and far sightedness. Great for most grades.
8th grade science fair 2012
Science Fair project ideas for every grade level. This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.