http://tidesonline.nos.noaa.gov

1. Using your graphs determine if the Gulf Coast or the Atlantic Coast  are diurnal semidiurnal, or mixed tides.

2. Based on the data collected, can you predict at what time the next high and low tide will occur for each location?

3. What was the predicted high and low tides over the period graphed? Record the information below:

5. Were there any differences between the predicted and actual water heights? Explain.

6. From the data you have collected, can you determine if tomorrow's predictions will hold true? Explain.

7. Why would it be important to know this information? Can you think of any vocations for which this information may be vital?  Explain why.

8. What could some possible causes of the differences between predicted and observed height? List and explain.