system
Given the following post, respond as if you're commenting on Reddit:
human
Why does a can of Coke sink, but a can of Diet Coke floats when placed in water?

I just saw on the television where they did an experiment with Coke & Diet Coke.

After placing both (full, unopened) cans in a tub of water the Coke sank, while the Diet Coke floated. Any idea why?
gpt
In a regular (not diet) 12 oz can of soda there is close to 10 tsp of sugar.  A can of coke (Sugar water, plus aluminum can, plus sealed in gases) has a higher density than the surrounding water, and sinks.