Show students it is possible to produce acetylsalicylic acid from a naturally-occuring, renewalbe resource. Students will convert sodium salicylate to salicylic acid, collect and dry prepared salicylic acid. They may then use a quick confirmatory test to examine for the presence of salicylic acid. The prepared salicylic acid can then be used to synthesize acetylsalicylic acid. Kit contains enough materials for 15 groups. Teacher's Manual and Student Study Guide copymasters are included.