Use these sites to find images that are free for school use under copyright laws. Don't forget to cite your sources.
Why not just use Google or Yahoo Images?
Copyright laws of the U.S. protect all kinds of original material, including photos. The following is a statement from the U.S. Copyright Office:
"What is copyright?
Copyright is a form of protection grounded in the U.S. Constitution and granted by law for original works of authorship fixed in a tangible medium of expression. Copyright covers both published and unpublished works.
What does copyright protect?
Copyright, a form of intellectual property law, protects original works of authorship including literary, dramatic, musical, and artistic works, such as poetry, novels, movies, songs, computer software, and architecture. Copyright does not protect facts, ideas, systems, or methods of operation, although it may protect the way these things are expressed."