ADD boiling water to gelatin mix in large bowl; stir 2 min. until completely dissolved. Stir in club soda. Refrigerate 1-1/2 hours or until thickened.
MEASURE 1 cup gelatin into medium bowl; reserve for later use. Stir strawberries into remaining gelatin; spoon into 8 champagne glasses or dessert dishes.
BEAT reserved gelatin with mixer on high speed until doubled in volume; spoon over gelatin in glasses. Refrigerate 3 hours or until firm.