Have students dump out the water and the M&M into a plastic waste container and use a paper towel to clean and dry the plate. 4. Discuss how to design a test to see if an M&M coating dissolves as well ...

Students develop a test to compare how the candy coating from an M&M and a Skittle dissolve in water ... are probably both made from sugar and coloring because they seem to dissolve in a similar way.