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1:At first there was a bigger difference at first the got closer and closer together.
2:The cold water turned warm over time.
3:The warm water started to turn cold over time.
4:The red line went up and the blue line went down
5:The water was almost the same
6:The air temperature is warmer so when it hits the water it makes it warmer.
7:The air temperature is colder so when it hits the ater it becomes colder
8:the two lines would cross eachother
9:No because the food coloring doesn't make a difference to the water it just made it red.