This site explains how tides change during different seasons.
Explains relationship between tides and gravitational forces
This is a complete lesson on tides, including review questions. The page links to additional resources and to JetStream - Online School for Weather Home page
This lesson is a video. Page links to activities associated with lesson.
This lesson explores the causes of tides and the cycle of two high and two low tides per day. This page has links to other educational resources.