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This Dissolving and Back Again lesson plan also includes:
- Dissolving and Back Again (.html)
- Student Activity Sheet (.pdf)
- Student Reading (.pdf)
- Teacher Background (.pdf)
- Connections to NGSS (.pdf)
- Dissolving and Back Again
- Photo: Magnified Salt (.jpg)
- Illustration: Sodium Chloride Model (.jpg)
- Animation: Water Dissolving Salt
- Animation: Evaporating Salt Water
- Animation: Liquid Water to Solid Ice
- Lab & Experiment
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From solid to liquid and then back again. Young scientists dissolve salt in water and then evaporate the water while observing what happens to the solute. They use their observations to make predictions about other solutions.
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Concepts
Instructional Ideas
- Have groups each dissolve a different substance and compare results
Classroom Considerations
- Builds on content from previous lessons
- Prepare materials prior to the lesson
- Installment three in the 16-part series
Pros
- Uses easily obtainable materials and resources
- Includes a detailed teaching guide with guiding questions
Cons
- None