RAFT (water / wind / gravity / person / magnet)
water
DOOR (water / wind / gravity / person / magnet)
person
FLOATING COCONUT FRUIT (water / wind / gravity / person / magnet)
water
TREE BRANCH (water / wind / gravity / person / magnet)
wind
FALLING LEAF (water / wind / gravity / person / magnet)
gravity
TAPE RECORDER (water / wind / gravity / person / magnet)
magnet
TUG-OF-WAR ROPE (water / wind / gravity / person / magnet)
person
WINDMILL (water / wind / gravity / person / magnet)
wind
FORCE FALL OF A SKYDIVER (water / wind / gravity / person / magnet)
gravity
ATM CARD (water / wind / gravity / person / magnet)
magnet
