|Airdate||October 24, 2004|
Tides is a BrainPOP episode launched on October 24, 2004.
Tim goes for a swim at night and emerges from the ocean water and sees that Moby has built an impressive sandcastle. Tim answers a letter and explains how the Moon and Sun contribute to Earth's tides. After explaining the topic, a tide comes in and destroys Moby's sand castle— Moby gets furious and yells at the Moon in beeps. Tim tries to take Moby back home, but Moby insists that the Moon is laughing at him, and much to Tim's dismay, Moby starts threatening the Moon.