Orange Peel The Orange’s Life Vest

Details Orange Peel The Orange’s Life Vest Orange Peel The Orange’s Life Vest

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0319s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #03.19; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We developed a lesson unit using an orange as a main ingredient to illustrate the concept of density of the system. The orange may be treated as a system comprised of two major components: pulp and peel. Teachers involved in the study tested whether they can average the densities of these components to find the value for the density of the system. The unit is flexible enough to be introduced in inquiry based classrooms at several grade bands and at different levels of sophistication: from basic qualitative description of the behavior of the orange in different liquids to quantitative calculations of the buoyant force which selected liquids exert on the orange. The activity has been implemented among several populations of pre and in service teachers through physical science courses and workshops. The impact of this activity on teachers’ and their K-12 students’ understanding of the density of the system will be discussed in this presentation.

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