Factors Affecting Dissolving Rate
Grade 745 min
Learning Objective
I can explain how temperature, surface area, and agitation influence the speed at which a solid dissolves in water, using evidence from an investigation.
Lesson Flow
Watch Video
How Solubility and Dissolving Work
Unknown Channel
Practice
7 questions • Short answer
Exit Ticket
“Imagine you are trying to dissolve sugar in water to make lemonade. Explain how using warmer water would affect the rate at which the sugar dissolves, compared to using cold water. Why does this happen? You have two identical glasses of water. In one glass, you add a sugar cube. In the other glass, you add the same amount of sugar, but it is granulated (small crystals). Explain which glass of water will dissolve the sugar faster and why.”
Teacher Guide
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