Colloids are mixtures containing solids in liquid or liquid in liquid and all of these contain distinct solid (and/or liquid) particles which are dispersed to various degrees in a liquid medium. The ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

In Fig. 1e we show the time dependence of B measured when a bipolar electric pulse E(t) (where t is time; black line) is applied to the same samples shown in Fig. 1a, showing normal (green line) and ...