I love the gameplay! It was so fun knocking around boxes and running around the office cafeteria pushing stuff around. I can tell a TON of effort went into the game. I also liked how it reinforced educational concepts. Very fun!
For a while I couldn't find any oxygens. Later I discovered they had all retreated to the very bottom of the screen, out of view behind a wall.
I was only able to make three compounds before I died. I tried again and was only able to make two. The controls are just fine in my opinion if it were a laid back game, but for the game to allow only four hits, it felt like the controls weren't polished enough for that level of precision. Maybe I just suck at games. :D
I cannot overstate how much I love the visual design in this game. The animations were very smooth and polished (especially when they form compounds) and the music was nice and catchy. Kudos on a job well done!