Holditinplaceormoveitalong.Screwsdobothjobsallday long.

Something screwy going on

By Glen Phelan

Screw

Simple 
Machines

Explorermagazine’ssix‑part series

Beforeyou read

SimpleMachines

Explorermagazine’ssix‑part series

lever
inclined plane
Wedge
screw

This edition

wheel and axle
pulley

HumanJourney

PhysicalScience

Onceyouhavecompletedthescienceactivityattheendofthisarticle,thinkofanotherusefortheArchimedes screw.