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Ward's® Chemistry Polymer Worms Demonstration

Ward's® Chemistry Polymer Worms Activity, Teacher's Guide and Student Copymaster, 12, —
Catalog # 470013-626
Ward's® Chemistry Polymer Worms Demonstration
Catalog # 470013-626
Supplier:  Avantor
Ward's® Chemistry Polymer Worms Demonstration
Ward's® Chemistry Polymer Worms Demonstration

Ward's® Chemistry Polymer Worms Activity, Teacher's Guide and Student Copymaster, 12, —

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A Fun Real-Life Application for Cross-linking and Polymer Chemistry

  • Two kit options available: teacher demonstration or student activity
  • Required basic labware that you provide.

This activity demonstrates how a simple material extracted from seaweed is used as a common thickening agent for popular candies. Sodium alginate is a long-chain, natural polysaccharide polymer that contains sodium ions. When placed in a solution of calcium chloride, the divalent calcium ions displace the sodium ions and the polymers are quickly cross-linked to form a worm-shaped gel. These gelatinous worms can be safely examined since the polymer is a nontoxic food additive. The demonstration includes enough materials to for 10 repetitions. The activity contains enough materials for 12 student groups to prepare several worms.

Ordering information: Includes Sodium Alginate, Calcium Chloride, Food Coloring, and Syringe. General Glassware/Labware are required but not included.

Specifications
  • Description:
    Ward's® Chemistry Polymer Worms Activity
  • No. of lab groups:
    12
  • Includes:
    Teacher's Guide and Student Copymaster
  • No. of uses:
    —
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