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Dry Ice **Hypothisis** I believe dry ice sublimates fastest in water, out of water, air, pure vegetable oil, and vinegar because air doesn't have anything to cause the dry ice to bubble. Oil is thicker than all of the others and vinegar doesn't bubble or fiz as easy as oil. I think the water will turn dry ice tinto a gas type form because of how is sublimates the dry ice. I also think water is the best choice because water is pure so there is no chemical reaction to prevent the dry ice from sublimating. With vinegar or oil, there could be a substance that prevents the dry ice from sublimating as fast as water.

Sources: Dry Ice Science Fair Projects by Anne Marie helmenstine Answerbag/questions by Rosita Tanza, February 23rd, 2010 Cody's Science Education Zone by Anthony Cody Weirdsciencekids.com Dryicenetwork.com by Dry Ice Network

Procedure: Step one: Get four bowls and measure out equal amounts of vegetable oil, water and vinegar. One bowl is empty for the air test.

Step two: Put dry ice into the four bowls and start the timer and note what time the dry ice sublimates in each bowl.

Step three: Record the sublimation times.

Purpose: My purpose is to see if dry ice submilates faster in water, air, pure, vegtable oi,l or vinegar

Bible Verse:

Jobe 38:29 From who's womb comes the ice? Who gives birth to the frost from the Heavens.