Ward's® Chemistry Polymer Worms Demonstration
About this item
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.
1 Options Available Below
Product Details & Documents
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.
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Product Information
- IncludesNo. of lab groupsNo. of usesAvailabilityPrice
- 470013-626Ward's® Chemistry Polymer Worms ActivityWard's® Chemistry Polymer Worms ActivityTeacher's Guide and Student Copymaster12—Each$33.05Pallet of 60$1,983.00
- Instructions12Discontinued-
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