Preheat the oven to 350 degrees.

Prepare the cake mix according to the package directions.

Line 24 cupcake cups with paper liners.

Use an ice cream scoop to fill the cupcake liners with cake batter.

Bake for 19-22 minutes, or until the top of the cupcake bounces back when you touch it.

While the cupcakes are cooling, color and cut out the planet shapes.

Using a small piece of tape, tape a toothpick to the back of each planet. Set aside.

Once the cupcakes are cooled, use a cupcake corer or plastic knife to cut out a well in the center of the cupcake.

Fill the cupcake with sprinkles.

Take the Pillsbury Filled Pastry Bag and tear off tip of the plastic bag.

Gently squeeze the frosting down to the tip of the bag and pipe swirls onto the top of the cooled cupcakes.

Sprinkle with star sprinkles if desired.

Place the planet toothpicks in the top center of the cupcakes.

Once your "planets" are complete, place them on the large sheet of paper with the sun in the position that they go in our solar system.

Store cupcakes in an airtight container when finished learning.