I found the idea for this ice experiment over at A Mommy's Adventures.
1 glass of hot tap water
1 glass of cold tap water
2 ice cubes
2 different colored plastic plates
Hypothesis: Ice will melt faster in hot water. (I asked Hudson which ice cube would melt faster and he guessed the one in the hot water).
We filled one glass with hot tap water and a second wit cold tap water. We placed the hot water glass on an orange plate and the cold water glass on a blue plate. The we dropped in the ice cubes.
Time to observe what happens
Conclusion: Hot water makes ice melt faster than cold water does.