Which solution will dissolve a candy heart the fastest? Hot water? Cold water? Vinegar?
See the amazement in their faces when the liquid turns colors, or the candy has holes in it, or when there are bubbles rising to the surface! Students will make observations every five minutes using words and/or pictures.
Included is a PDF with an activity summary, an observation page with cold and hot water, and an observation page with cold and hot water and vinegar.