Answer:
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain; doing no harm, and feeling no pain. What am I?
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?
I am always hungry I must always be fed. The finger I lick will soon turn red.
I have thirteen hearts but no body or soul. What am I?
The more you have me, the less you see. Shine a light on me and I flee. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?