Solubility Kitchen

A liquid can dissolve only a limited amount of solute at a given temperature. Heating usually raises that limit, while cooling can make some dissolved solute become solid again.

ChemistryAges 10-13~9 min🎙️ Voice tutor
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What your child will figure out

  • Identify visible undissolved solid as evidence that a solution is saturated.
  • Predict and test whether adding more solute to a saturated solution changes the dissolved amount.
  • Predict how heating and cooling change the amount of sugar that can stay dissolved.
  • Account for all solute as dissolved plus solid, even when it cannot be seen in the liquid.

The levels

  1. Find the limit

    Add, stir, and observe until visible solid remains and identify the solution as saturated.

  2. Predict the next scoop

    Predict whether another scoop will dissolve in an already saturated solution, then test it.

  3. Turn up the heat

    Predict and observe how heating changes sugar's dissolving capacity.

  4. Cool-down transfer

    Transfer the saturation rule to cooling and account for re-formed crystals without losing mass.

Ready when they are.

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