All material is my personal opinion, and not that of any other organization.
Permission is granted for individual teacher use.
All rights reserved. Student interest is engaged with a discrepent event, and then students experiment with different combinations of objects and liquids of various densities. They end up learning the formula for density and calculate the densities of various materials, and predict if they will sink or float. The most important tool a scientist has is his or her powers of observation. So today, we are going to stretch and build those powers.