Leprechaun Magic Part 2

How do Leprechauns catch green fish? They use green worms and we know how to make them.
We added some soduim alginate to a water-calcuim solution. The calcium helps to link the small molecules of the alginate into a polymer, a long chain of smaller molecules......in other words, it makes green worms from worm goo.

Idea and supplies from Steve Spangler Science