March 16, 2021
S O L U T I O N
(does the dissolving)
Solutions can be made from:
liquid : liquid
(e.g. lemon juice in water)
solid : liquid
(sugar crystals dissolved in water)
gas : gas
(air: a solution of gases mixed evenly)
gas : liquid
(carbon dioxide dissolved in pop)
(alloys - mixtures of metals (e.g. brass or pewter)
aqueous - dissolved in water
tincture - dissolved in alcohol
- dissolved in mercury
George Decker story (dental amalgam extraction)
organic - dissolved in carbon containing solvent
Polar vs. Non-polar solvents
"like dissolves like"
Demonstrations: oil and water with food coloring, emulsification, tincture of iodine.
Teacher Note: (water, cyclohexane and glycerin) in test tube. Add 1
drop of food coloring.
Purple muscle, lycopodium powder, orbitz drink, separatory funnel
Envirobond - oil absorber
LAST 15 minutes:
Allow students to make Slime or Gluep polymer (sodium tetraborate aka borax =
HW: Read Article -
Sweat the Small Stuff"
and questions to accompany article.
Adversity introduces a man to himself.