Set Off a Rocket
This page is the CodyCross answer for the clue below from Science Lab, Group 305, Puzzle 1 (Mortar and Pestle).
Question is: Set Off a Rocket
and the answer is: LAUNCH
Word Meaning:
LAUNCH — (transitive) To throw (a projectile such as a lance, dart or ball); to hurl; to propel with force.
Definitions from Wiktionary.