Many of us already use simple machines every day without even realising it!
There are typically six simple machines: lever, inclined plane, wheel & axle, screw, wedge and pulley.
On their own, or combined, these simple machines can be powerful devices that save a lot of effort. All compound machines are built from two or more simple machines.
With IntoScience, students investigate the different types of simple machines, analysing how they save effort and how useful they can be: