This site allows you to search any type of video or clip you might need to use in your classroom. It also gives you other video references like the ones you have searched.
This site is easy to use. It has great videos at different lengths and definitely some cool ones on nature and science.
Videos I like:
Pistol Shrimp Sonic Weapon
Integer Rule Song
Copyright and Fair Use:
Fair Use is about how you restructured the material to add more value to it. If you are using it for a different purpose than what it was used for than it is probably Fair Use.
Just because you use a bibliography at the end of your work does not mean that you will not be in violation of copyright laws.
This is a great tool to use in the classroom to allow students to share files with their peers. When working on projects they can save files to the dropbox so that if one person is sick during the presentation day and what not then the rest of the group still has access to the presentation.