You can copy music for educational purposes; however, the finished product cannot be accessible from or screened publicly outside the school premises or the student's home.
Below are links to sites which permit you to download and freely use their music. Search according to the genre you require; for example, tense, light-hearted, dramatic.
Images found on the internet represent intellectual property and are generally not free to be copied or used by others.
When using images in a research assignment they should be treated as a source of information. You should provide a reference to the author/creator and year of production (in-text citation).
There are some sites; however, which supply free images for use by the public and in education.
Where do I find websites that clearly allow for educational use?