1. Tides

2. Tides The rise and fall of the ocean water levels along the coast are called tides. The amount of water in the ocean doesn’t change but moves in a pattern.

3. High Tide Low Tide What has changed about this picture? Look closely at the background and boat.

4. Pattern Tide charts predict and show the pattern of tides. Coastlines experience high and low tides each day. What patterns do you see in this tide chart?

5. Who Should Use a Tide Chart? Tide charts help us to be safe, get our work done, and have fun around the coast.