Copyright - is a law that gives the creator of spemthing like a book, song, or project the right to decide what others can do with what they have made! If someone uses or edits their work without their permission, they broke the law. 

https://kids.kiddle.co/Copyright

We are creators of great things, and we do not want anyone to steal it, so we can respect others by not stealing their work either!Copyright also protects the things we have made and allows others to be created and create their own projects. 

https://copyrightalliance.org/how-and-what-to-teach-kids-about-copyright/

Fair Use - is the exception to copyright. This means that someone can use tiny portions of their work, just not all of it. For example, someone might use a quote out of a newspaper or a lyric from a song. Fair use allows us to still be creative, yet come together and gather things from others as well. 

Fair Use is a part of the law as well. This all comes from the Constitution. The law gives us guidelines to follow to ensure that we are not breaking it. 

For more information:

https://wiki.kidzsearch.com/wiki/Fair_use

http://www.copyrightkids.org/cbasicsframes.htm