This term, Class 5 have been learning about all things forces in their Science lessons.  They began by exploring and looking at the effects both gravity and air resistance have on objects as they fall to the ground through a parachute investigation.  More recently, they have moved on to considering the effects of friction and water resistance.  The children made boats of varying shapes which at first took to the water, most gracefully gliding, before being purposefully sunk. 

Which do you think helped assist their buoyancy, salt or fresh water?