PVMS 8th grade science class challenge Posted on February 07, 2018 by Alex Gofman in District, District Photo PVMS 8th grade science class challenge: Who can build the tallest tower using 20 sticks of spaghetti and one meter of tape to hold up a marshmallow? PVMS 8th grade science class challenge: Who can build the tallest tower using 20 sticks of spaghetti and one meter of tape to hold up a marshmallow? See more photos here