This link is to the Canadian Museum of Science and Technology and some of thier amazing resources around simple machines.

This is a fun youtube video and song about simple machines! Very catchy.

This is the trailhead tour on simple machines that your class can take part in at the Royal BC Museum!

This is such a fun and informative episode to use when teaching the concepts of simple machines!

These images are useful for teaching the concepts of simple machines

http://royalbcmuseum.bc.ca/100/object/fish-butchering-machine/