Music
License: Creative Commons with Attribution

BenSound

Royalty Free Music Collection on One Drive
(you need to be logged in to Office 365 to access and download)

• How to credit (A MUST!)  

Photography
License: Creative Commons Zero (CC0) - free to use

Pexels Stock Photos
Good for outdoor, nature. Little diversity in people. 

Clip Art
Free to use from within the Schoolwires editor Press the image icon, choose "Clipart" from the list, "Search" from the dropdown by category