Cotton ball launcher

 In science we were creating and modifying a cotton ball launcher. For this you will need two strong rubber bands and two toilet paper rolls and one pencil you will need to cut one of the toilet paper rolls and you will need to put tape once you've made it smaller you get your punch hole and and do one hole on each side you stick the pencil in there and the you get your bigger one and cut two slit on each side then you get your rubber bands an put the in there you get your tape and stick it down them stretch the two rubber bands on each side of the pencil and put the cotton ball in there and you pull the pencil back and weeeeeeeeee the cotton ball launcher goes flying. I found it challenging to modify and what I could do to make the cotton ball launcher go further mine only went 220 cm im pretty sure or mm the high score was 330 set by Ruby and Carter tied the record.i found it not so challenging was putting it all together and creating it at the start. 

COTTON BALL LAUNCHER VID!!