Science Experiments

We talked about which  type of water the children felt would freeze the fastest. Most everyone thought tap water would freeze faster than salt water so we decided to test to see if we were right. We put half a cup of both types of water into the same size plastic bags and put them in the freezer. Every hour someone went up and checked. The result.... by 12 o'clock there were lots of icey blocks in the tap water bag but only a very thin layer of ice at the top of the salt water bag. So we now know for sure that tap water freezes first.