
Teacher Demo – Can you make an
orange sink?

Students measure the mass and volume
of water, plot data on a graph, and
derive the density formula

Students predict if objects will float or sink
based on density and explain their
reasoning

Students will sink leaf disks. As the leaves
produced oxygen during photosynthesis,
they will rise.

Writing prompt –
› Using what you have learned about density,
think about a career where the concept of
density is important. Write at least 5-7
sentences about the career and how the
concept of density is used.