Whereelsecanyoufindwedges?Let’sfindout.Lookinatoolbox.Nailsarewedges.Soarethumbtacksandpushpins.Lotsofgardentoolsaremadeofwedges.Thebladesofshovelsandhoesare wedges.

Here’sanotherexample.Snowplowsarewedges.Theyscrapesnowoffroads.Thebladeoftheplowreachesunderthesnowtolift itoffthe road.

Somewedgesarehidden,like inazipper!Whenyoupulluponthezipper,smallwedgesinsidethesliderpushtheteethtogether.Whenyoupulldown,anotherwedgeseparatestheteeth,likeatinyaxesplitting wood.

Sofar,mostofthewedgesyouhavereadaboutcutthroughsolidthings,likewood,soil,and food.

Butwedgescancutthroughliquids,too.Lookatthefrontofaboat.Thewedgeshapeletstheboatslicethroughthewaterwith ease.

Nowyouknowalotaboutwedges.Thinkaboutsomewaysyoumightusethissimple machine.