CK-12 Physical Science Concepts - For Middle School

(Marvins-Underground-K-12) #1

3.50. Saturation http://www.ck12.org


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At the following URL, watch the video on solubility. Pay special attention to minutes 3:50–6:55 (the section on
saturation). Then answer the questions below. http://www.youtube.com/watch?v=IKimraU21ws



  1. Describe how particles of solute behave when a solution is saturated.

  2. What is a supersaturated solution? How does it form?

  3. How is a supersaturated solution used to make rock candy?


Review



  1. Contrast saturated and unsaturated solutions.

  2. Describe an example of an unsaturated solution of table salt in 1 liter of 20 °C water.

  3. Miguel added 150 grams of baking soda to a liter of water at 20 °C. No matter how long he keeps stirring the
    solution, he can’t get all of the baking soda to dissolve. Explain why.

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