HOW TO USE MY VOCABULARY ON MY SEMESTER EXAM??!?!?!?!?

FOR SCIENCE ON MY EXAM THERE 150 VOCABULARY WORDS..I DONT WANT TO WRITE TEM DOWN..BUT WE COULD USE THEM ON THE TEST...HOW CAN I MAKE IT SHORTER AND LONG TO LOOK FOR..BECAUSE THEIR ALOT OF WORDS AND ITS GONNA TAKE LONG TO FIND THEM...HELP!?!?!?!??!?! MY DIPLOMA IS ON STEAK HERE