Pour room temperature water into a taller clear plastic cup until it is about ¾-full. Your adult partner should use a dropper to pick up a dropper-full of cold blue water. Look at the room temperature ...

Put about 1 teaspoon of room temperature water in a small plastic cup. Use a dropper to put 1 drop of room temperature water in the center of each piece of coffee filter. Put ½ cup of room temperature ...