GETTING ON WITH ENGLISH IN THE LAB 2n ESO

CONVECTION                                                   

MATERIAL

·            Two glasses

·             Blue  colorant

·             A piece of cardboard

PROCESS

1. Fill up two glasses , one with cold water and one with hot water.

2. Add a few drops of colorant to cold water

3. Cover the glass  of hot water with a cardboard, and being careful of not spilling it,

place it face down over  of the glass  of cold water.

4. Remove  the cardboard and watch what happens.

 5. Repeat the same operation but placing the hot water  glass  underneath and the cold water  glass above

               A)   Is there a difference between the two cases? Describe it.

        B) Make a small report with the results of your observations

Here is a sample of the results of this experience