There are many websites useful for finding free photos. Remember to acknowledge the source of images in your work and be aware that some may not be usable for educational purposes.
Always check on the site for information about copyright restrictions. Not all images will be freely available. You may need to seek the publishers' permission before copying any image.
Creative Commons (CCL) is a licensing system set up to help image creators distribute their work.
An image has a licence attached indicating how it can or cannot be used.
There are four elements to the licensing system and this information can be found alongside the photo on the website if a CC licence has been applied.
The four elements are applied in different variations to form six licences.
The latter is an overall public domain licence (CC-0) which means the image has no copyright attached and is free to use on all accounts.
New ways of searching for images, such as Content-based image retrieval (CBIR), enable you to search by other criteria, such as colour, shapes or texture, or even by uploading or drawing your own image. Find out more and explore with the links below:
Many students use Google to look for images. https://images.google.com/