Layered Rainbow Jello Salad

1 (3 oz.) pkg. lime jello

1 (3 oz.) pkg. lemon jello

1 (3 oz.) pkg. orange jello

1 (3 oz.) pkg. strawberry jello

1 (3 oz.) pkg. black cherry jello

1 (3 oz.) pkg. blue jello

Hot water

2 Cups plain yogurt

For each package of gelatin, dissolve gelatin in 1 cup hot water (I boil it in the microwave).  Stir until completely dissolved.  Divide in half into 2 bowls.  Set one bowl aside.  Stir 1/3 cup yogurt into dissolved gelatin in one bowl.  Pour into nice big glass salad bowl. (I use a fluted bowl)  Refrigerate 30 to 40 minutes, especially for the first layer I go 40 minutes.  After the first layer (with yogurt) has set up, add 3 tablespoon very cold water to the gelatin which was set aside.  Pour over yogurt layer and refrigerate 30 minutes.  Continue mixing each package, dividing gelatin in half and adding yogurt and keeping half clear until all packages are used.