ExplorationIce Ice Baby!With this easy experiment, you can see for yourself the way that salt changes the freezing temperature of ice!Have a grown-up help you measure out two cups of water, with the same amount in each. Put a few tablespoons of salt into one of the cups and stir it up. Mark which cup has the salt and which does not.Place both cups in the freezer at the same time, and then check on them after about an hour.Has one cup frozen more solidly than the other? Which one, and why??
Sources & links
“Ocean water freezes at a lower temperature than fresh water.” National Ocean Service. 2009. U.S. Department of Commerce, National Oceanic and Atmospheric Administration. 31 Jan. 2010 “Does the Ocean Freeze?” Alaska’s Tundra & Wildlife. 2001. Alaska Department of Fish and Game. 31 Jan. 2010