The Icy Experiment The Icy Experiment

Tonyara WilsonTonyara Wilson

My QuestionsMy Questions

Does salt water Does salt water freeze faster than freeze faster than regular tap water ?regular tap water ?

Does salt water with 2 Does salt water with 2 tablespoons of salt tablespoons of salt freeze faster than 1 freeze faster than 1 tablespoon salt tablespoon salt water?water?

My HypothesisMy Hypothesis

Will salt water freeze Will salt water freeze faster than tap water? faster than tap water? Does adding 2 Does adding 2 tablespoons of salt tablespoons of salt water freeze faster water freeze faster than adding 1 than adding 1 tablespoon of salt tablespoon of salt water?water?

Materials NeededMaterials Needed

2 identical plastic 2 identical plastic cups cups

Table Salt Table Salt Water, half a cup Water, half a cup

eacheach TablespoonTablespoon

Method / ProceduresMethod / Procedures

Fill the 2 cups half way. Add 1 tablespoon Fill the 2 cups half way. Add 1 tablespoon of salt to one of the cups. Place in the of salt to one of the cups. Place in the freezer for 1 hour and 40 minutes. freezer for 1 hour and 40 minutes. Compare the freezing of the salt water to Compare the freezing of the salt water to the regular tap water. Record what you the regular tap water. Record what you see. Make another mixture of salt water see. Make another mixture of salt water using 2 tablespoons. Place in the freezer using 2 tablespoons. Place in the freezer for the same amount of time as the other. for the same amount of time as the other. Compare and record what you see.Compare and record what you see.

ObservationsObservations

The tap water had a thin layer of ice with The tap water had a thin layer of ice with icicles down the sides. icicles down the sides.

The salt water with 1 tablespoon was The salt water with 1 tablespoon was slushy, but still liquid. slushy, but still liquid.

The salt water with 2 tablespoons had less The salt water with 2 tablespoons had less ice than the first one.ice than the first one.

ConclusionConclusion

My conclusion is that My conclusion is that regular tap water regular tap water freezes faster than freezes faster than salt water. salt water.

And 1 tablespoon salt And 1 tablespoon salt water freezes faster water freezes faster than 2 tablespoon salt than 2 tablespoon salt water .water .