Stir chocolate drink mix into hot and cold water to see if there is a difference in how quickly it dissolves. Number three in a six-lesson unit on dissolving, this installment investigates the effect of temperature. If you consult the unit manual, there is a related demonstration on how increasing temperature increases solubility. 

Concepts

dissolving, solubility, temperature

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Additional Tags

temperature, dissolving, solubility, science

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Pros

• Plenty of teacher support in the forms of a lesson plan, answers, and a rubric for assessing participation in the lab
• Learners are kept on task with a neatly organized lab sheet
• The matter unit that this lesson is part of is filled with other exciting hands-on explorations

Cons

• None