So my friend (LariaRojo) told me a pun. Let's start the chemistry puns with that.

"So my dog wasn't feeling well. I tried to Curium and Helium, and when that didn't work, I had to Barium."

"Why are periodic tables call periodic if they're not even in magazines?"

Why should you not trust atoms?
"Because they make up everything"

What do you call the energy of moving fish?
"Finetic energy"

"You know how there's Solid Snake and Liquid Snake? Well, where the hell is Gas Snake?"

What would you call a gay plant if they were collecting Sun?
"Homosynthesizing."

I ran out of ideas after the last one. I'll have some better ones in later chapters, I promise. And there will be a cover picture later, I assure you. Trust me on this one. Scientifically speaking, goodbye.
Edit: There's a picture now. Happy?