Room 8 catapults

During the last part of term we have been studying structures and mechanisms.  Mr Burt gave us a task to do.  Humpty Dumpty had fallen off the wall and as the king's chief weapons advisor we had to make a catapult to heave him back over again.  First we made a catapult out of household items.  These were: a milk bottle top, an ice block stick, a small wooden cube, a peg, and a large flat block of wood.  Then we got our teacher, Mr Burt, to glue them together. The structure of the catapults were the flat block of wood with a peg glued on top, then we put a wooden cube on top of the peg, after that we stuck a ice block stick on top of the cube, then to finish off we glued a milk bottle top on the end of the stick.  We had fun firing the  marshmallows and measuring the distance. Sophie and Celine's went the furthest of 3.20 metres.   The next day Nina brought a homemade catapult to school.  It had big trampoline springs and big blocks of wood. We all had fun and are looking forward to the next design which is made from ice block sticks!