Makes 6 popsicles
Place 1/2 cup raspberries in medium bowl and mash well; set aside. In large bowl, combine limeade, yogurt and soda; mix well.
Add 1/2 cup limeade mixture to raspberries; mix well. Refrigerate remaining limeade mixture.
Fill popsicle molds or paper cups 1/3 full with raspberry mixture. Freeze 2 hours or until firm. Divide remaining berries amongst frozen popsicles and top with remaining lime yogurt mixture. Add popsicle sticks* and freeze 2 hours or until firm. Remove from molds or cups and serve immediately.
*To keep popsicle sticks straight during freezing, cover cups with plastic wrap and push the stick through the center of the wrap.