3.5 Applying Archimedes Principle

The document outlines activities and demonstrations to teach students about Archimedes' principle. It includes: 1) A demonstration using plasticine balls of different weights that float or sink in water to show the concept. 2) Questions about why a ship floats and iron sinks that lead into a discussion of buoyant force and displaced water. 3) An activity where students suggest examples applying Archimedes' principle like hydrometers and submarines. 4) Sample test questions to assess student understanding of buoyancy, floating objects, and the effects of buoyant force.