Candy That Bursts in the Mouth With Tiny Bubbles
Puzzle 20 of Classic Things Medium Pack
Question is: Candy That Bursts in the Mouth With Tiny Bubbles
and the answer is: POPROCKS
Word Meaning:
POP — (countable) A loud, sharp sound, as of a cork coming out of a bottle, especially when the contents are pressurized by fizziness.
Definitions from Wiktionary.