Saturation Station

Compare dissolved solute with the solid remainder when water becomes saturated.

Grades 3–5 · Chemistry

Explore one idea

Saturation Station

Your goal

Use 1 water cup and dissolve all it can hold, leaving 1 solute scoop undissolved.

1 of 3
1 water cups hold 0 dissolved scoops with 0 scoops still solid.Where did the solute go?1 cup2 cups3 cupsFixed temperature and solute typeCapacity 4 scoopsDissolved 0Undissolved 0Purple dots represent dissolved solute

Reduced motion is on. The controls still update the scene.

0 scoops added equals 0 dissolved plus 0 undissolved. Stir to move solute into the water until the capacity is reached.

Changing water or solute starts a fresh batch. Stirring strength changes the amount dissolved per step, not the saturation limit. This illustrative solute holds four scoops per cup at one fixed temperature. Real solubilities depend on both substance and temperature.

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Learn with Saturation Station

Choose one to three water cups, add solute scoops, and stir to watch solid material become dissolved material. Saturation Station helps elementary learners distinguish how fast something dissolves from how much can dissolve at a fixed temperature. Purple dots represent dissolved solute, while amber pieces remain on the bottom when the water reaches its capacity. The counters keep every scoop accounted for. Guided goals ask students to prepare saturated mixtures with different solid remainders, then explain why stronger stirring cannot dissolve the excess.

What to look for

Count every scoop

Dissolved scoops plus undissolved scoops always equal the amount added.

Compare rate and capacity

Stronger stirring changes a step, but not the final saturation limit.

Start a new batch

Changing water or solute refills the beaker with a fresh mixture.

For teachers and curious learners

Explore how solvent amount sets a saturation limit while stirring changes dissolving speed. Ask students to predict what will happen, change one setting, and explain what they observe. Learn gives a starting point. Practice and Challenge offer new goals with the same scene.

This illustrative solute has a fixed capacity of four scoops per water cup. Stirring transfers a bounded amount each step; real solubility depends on substance and temperature.

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