TEACHERS + FREE RESOURCES = AWESOME TEACHING OPPORTUNITIES!
Go to Teachers' Domain and create your FREE (did mention that it's FREE?) account. Get started by either searching by topic or browsing by your state standards.
"Teachers' Domain is a free digital media service for educational use from public broadcasting and its partners. You’ll find thousands of media resources, support materials, and tools for classroom lessons, individualized learning programs, and teacher professional learning communities"
Most recently a teacher I work with found a short video clip of the water cycle that she included in her Smart Notebook lesson. It helped her 2nd grade students grasp the concept of the water cycle in about 30 seconds!