We're not talking about the kitchen sink. Learners explore what types of objects sink and float in water in an inquiry-based lesson. With experimentation, they find similarities between materials that float and those that sink.

Concepts

floating, sinking and floating, physical properties, liquids, solids, solids and liquids, density

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Instructional Ideas

• Connect pupil observations to the concept of density

Classroom Considerations

• Collect and prepare materials prior to the activity
• Part seven of an 11-part Inquiry in Action series

Pros

• Includes questioning strategies
• Makes use of common household materials

Cons

• None