Even though I did well in Physics, I never really understood entropy until I heard Brian Cox explain it. In this series of 20 video clips, produced by the BBC and hosted by former British rock star turned physicist Brian Cox, students can't help but get drawn into the complex principles of Physics. If you are teacher covering standard topics like the speed of light, gravity or the birth of the universe, turn to this treasure trove to help your students find the "wow factor" of physics.
Wonders of the Universe videos can be found on Youtube, but they are often the full 50+ minute TV segment that aired. BBC edited out the most powerful 5 minute clips from these longer shows and organized them all in one place on the BBC site I have listed in this Spark.
How Sandcastles Reveal the End of All Things; Entropy: