One of the most important things we can teach our kids about technology is how to be responsible digital citizens. A big part of being a good citizen is understanding copyright and which images, videos, sounds, etc we can use in our published works.
I came across an amazing collection of nothing but free stock images/videos/sound effects/icons websites. This is, without a doubt, one of the most comprehensive collections of free, ready to use media available on the web.
If your students are looking for media for a project they’re working on, AllTheFreeStock is a great place to begin that search.