Which Freezes Faster?fresh Water Or Salt Water?
I. STATEMENT OF PURPOSE & HYPOTHESIS: I wanted to find out which type of water, fresh water or salt water, freezes the fastest. My hypothesis states that fresh water will freeze the fastest. II. METHODOLOGY: The materials needed are a freezer, water, salt, a pencil, a measuring cup, two containers of the same size, a data collection form, a toothpick, a teaspoon, tape, a timer, and a marker. First, you need to gather all the materials. Next, using the measuring cup, pour 1/4 cup of water into each container. Label one of the containers by writing “fresh water” on a piece of tape and placing it on top. Label the other container “salt water”. Then pour one teaspoon of salt into the container of water labeled “salt water” and stir. After that put the containers next to each other in the freezer. Using a timer, check the containers every 5 minutes by poking the toothpick in the water. When the toothpick does not penetrate the water it is frozen. Write down on the data collection form how l
