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•Identify the independent, dependent, and controlled variables in your experiment which is, "How does adding salt affect the freezing point of water?"

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I read a presentation about this experiment. 
Hypothesis: If I add salt to water, then it will take longer for the water to freeze.

The given variables were:
Controlled Variables:
1. Refrigerator
2. type of cups used (contains water and varying amount of salt)

Independent Variable
1. Amount of Salt

Dependent Variable 
1. Amount of frozen water

Conclusion: Water with salt take longer to freeze.

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