On Monday kea did a fun but hard experiment are experiment was a flight the four forces of flight is thrust,weight,drag,lift they keep the plan balance and from falling.

but we did it with flex (here comes the hard part) so we had to throw the flex but the flex goes the anther way like when you throw it to the left it goes right 

then we had to measure it with are feet and here is a video of it 

                              

                       did you know the four forces?