Sink or Float: Exploring the Laws of Buoyancy

Students explore the relationship between density and buoyancy. After watching a video explaining buoyancy, students discuss displacement and floating. Students have a raft building competition. Afterward, they conduct experiments to determine how a hot-air balloon floats. They write a paragraph summary explaining their findings.

6th - 8th Science 4 Views 107 Downloads
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Resource Type
Lesson Plans
2 hrs

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Paul H.
Hi, I was recently hired as a middle school science teacher in Newark, NJ. I received a call on a Friday and was asked to begin the following Monday. As a new teacher, and with only 3 days to prepare, I was really feeling the pressure. The school requires 2 weeks of lesson plans every Sunday, so I began searching the web for help. Thank goodness I found Lesson Planet. I still use the site everyday to form great lessons and activities for the kids.
Paul H., Teacher
Lakewood, NJ