Description

Using only table salt and water, students are asked to develop a method for separating this mixture of four different small plastic beads. Advanced students can continue on to determine the density of each different polymer! The materials in this separation lab can be used over and over again, and because only polymer materials are used, cleanup is easy. Complete teacher instructions provided. Includes 230 g (0.5 lb) of mixture, enough for a class of 24 students working in pairs. Beakers and salt not included. Colors may vary.