NAME: ______DATE: ______PER: ______SEAT: ______
TIDES WORKSHEET
Introduction:
Day / High / Low / High / LowSat 5 / 3.79 ft / 2.52 ft / 6.21 ft / -0.90 ft
Sun 6 / 3.91 ft / 2.64 ft / 5.60 ft / -0.47 ft
Mon 7 / 4.14 ft / 2.63 ft / 4.86 ft / 0.03 ft
Tue 8 / 4.49 ft / 2.34 ft / 4.15 ft / 0.55 ft
Wed 9 / 4.89 ft / 1.74 ft / 3.66 ft / 1.04 ft
Thu 10 / 5.31 ft / 1.01 ft / 3.45 ft / 1.47 ft
Fri 11 / 5.67 ft / 0.31 ft / 3.45 ft / 1.82 ft
Tides are regular changes in the elevation of the ocean’s surface. Many factors influence the tides like shape of coastline, configuration of oceans basins, and water depth, but the greatest influence is gravity. Both the moon and the sun affect the tides, but because of the moon is a lot closer its gravitational influence is greater.
Graphing Part 1:
The chart to the right lists the tidal information for Ventura Co. at Point Mugu. Plot this data in the graphing area provided below. Remember to title your graph and label the y axis.
Graph 1. ______
Use your notes or pages 458-460 in your text
1. What are the three main tidal patterns that exist worldwide?
2. What type of tidal pattern best describes Ventura Co.?
Graphing Part 2:
The chart on the following page lists the daily max/min tidal data for Ventura Co. at Point Mugu. Plot this data in the graphing area provided on the back of this page. Remember to title your graph and label the y axis.
3. What 3 dates did we experience a spring tide this month? (Use the moon chart)
4. What type of moon(s) was in the sky those nights?
5. What is a spring tide?
6. What is a neap tide?