Factors Affecting Dissolving Rate
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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.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Define the terms solute, solvent, and solubility. Use the example of sugar dissolving in water to illustrate your definitions.
Explain why water is often referred to as the "universal solvent." What property of water molecules makes it effective at dissolving many substances?
Part 3 of 3
Exit ticket
Quick comprehension check
“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.”
Sample answer included in the free materials
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