Change Of State Return to Chemistry Index Bernard Hudson Morton
Career Academy 431 N. Troy Street Chicago, Il. 60612 The
students will 1. Note the change of state of Butyl Stearate
(BS). 2. List the characteristics of BS in solid and in liquid
forms. 3. Note the temperature at which liquid goes to solid. 4.
Note the temperature at which solid goes to liquid. 5. Chart the
temperature vs. time change solid to liquid. 6. Chart the
temperature vs. time change liquid to solid. For a class of 15:
1. 15 Test Tubes 2. 30 Beakers 3. 15 Thermometers 4. 15 Hot
Plates 5. 500 mL Butyl Sterate 7. 15 pr. Goggles 8. 15 Aprons 9.
Paper Towels 11. 1 each, package gelatin ('Jello' brand or
equivallent) & 1 prepared 12. 1 each, package 'Kool-Aid' brand
drink mix & 1 popsicle 13. 1 each, pitcher, mixing bowl, spoon
1. Discuss how mother makes 'Jello'. 2. Ask students to help
make 'Jello'. 3. Display solidified 'Jello', note if it is wet
or dry. 4. Introduce the terms solid and liquid. 5. Discuss how
'Jello' changes from liquid to