Can you mix two liquids to make a solid that is insoluble? Yes, you can, and pupils see this as the lesson uses more than one combination of liquids to form a solid. Through two teacher demonstrations and a hands-on activity, scholars observe the process. The lesson also focuses on the concept of conservation of mass with the analysis questions. 

Concepts

precipitates, ions, molecules, solutions, solids, chemical equations, conservation of mass

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Additional Tags

science

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Instructional Ideas

• Practice all demonstrations before class so you are aware of exactly what you are looking for

Classroom Considerations

• Carefully follow all safety precautions for the various chemicals, as some cause skin issues, some cause respiratory issues, and some can't be thrown away
• Recommends projection, but if a projector is not available, you can print the image to poster size and hang it in the classroom
• Lesson is the third in a 12-part series

• This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information

Pros

• Provides information on where to buy specific chemicals including companies and product numbers
• Includes discussion questions and ideal answers throughout the lesson
• Follows a 5E lesson format

Cons

• None

Common Core

RST.6-8.3 RST.6-8.4 RST.6-8.7 WHST.6-8.1.a WHST.6-8.1.b WHST.6-8.1.c WHST.6-8.1.d WHST.6-8.1.e