Here's a handout I made explaining Copyright Free and Creative Commons works.  Please make sure, when choosing resources to work from, that you either use your OWN PHOTOS (best option!!) or copyright free or creative commons photos.  
Use the listed websites or follow the directions on the graphic below to direct your Google search.

LINKS TO FREE PHOTO SITES:
Openverse.org                               
Unsplash.com   
Pixabay.com
Pexels.com                   
Kaboompics.com
Copyrightfreephotos.com