Sarah is testing how quickly saltwater freezes. she adds saltwater to one ice tray and plain water to another ice tray. she places each tray in the freezer and records the time when each one starts to freeze. what treament did she do? . a. salt. b. water. c. freezer. d. ice tray
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Sarah is testing how quickly saltwater freezes. she adds saltwater to one ice tray and plain water t...
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