![Girl throwing stones by lake, hot-air balloon, and a hang-glider](http://static.sciencelearn.org.nz/images/images/000/000/306/full/FLT_LKC_ART_06_FallingFloatingFlying_Triptych.jpg?1674164073)
Which things fly? Sometimes it’s hard to decide whether some things are flying or not. A stone ‘flying’ through the air? A hot-air balloon? A hang-glider? How do we decide?
Which things fly? Sometimes it’s hard to decide whether some things are flying or not. A stone ‘flying’ through the air? A hot-air balloon? A hang-glider? How do we decide?