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ScholAR Polymer Worms Activity

  
Product NameSKUPriceQty
Polymer Worms ScholAR Demonstration Activity Kit
This item is restricted, it only ships to registered educational institutions.
WW94002M11
 $28.65 
Polymer Worms ScholAR Laboratory Activity Kit
This item is restricted, it only ships to registered educational institutions.
WW94003M20
 $35.00 




Product Information

A fun real-life application for cross-linking and polymer chemistry, this activity demonstrates how a simple material extracted from seaweed is used as a common thickening agent for popular candies. Sodium alginate is 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.




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