Tag Archive for 'polymers'

Joke Juice ScholAR Demonstration

Published in Lesson Plans. Tags: chemicals, chemistry, cross linking, polymers, scholar.

Purpose
Illustrate the effect of cross-linking on a polymer.

Materials

Guar gum
Borax, sodium tetraborate decahydrate, Na2B4O7 · H2O
Red food coloring
Glass stirring rod
Empty glass juice bottle (~300 mL)
100 mL graduated cylinder
100 mL beaker
Electronic balance

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Disappearing Water ScholAR Demonstration

Published in Lesson Plans. Tags: absorption, chemicals, chemistry, polymers, scholar.

Purpose
To illustrate the absorbing power of the polymer found in diapers.

Materials

Acrylic sodium salt polymer (A.S.A.P.), diaper powder, potassium polyacrylate
Styrofoam cup
Bottle of water
Piece of cardboard

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