Brainstorm how you will do your investigation. Write your theory in a test form. Describe a test you could perform to find out how quickly coffee dissolves in cold and in hot water.
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i will add cold water to the coffeee powder and add hot water to the another coffee powder and observe the differences between cold and hot cofee .The cofee will imediately disolve in hit water because of its high temperature while the coffee in cold water can take a second before ut disaolve to the cold water .