1. Bell Ringer
Explain why you believe it is important to understand when high and low tides on Earth occur. Give at least 1 example.

4. Earth’s Tides
E.Q. – What causes the Earth’s oceans to rise and fall throughout the day?

6. LOW TIDE
HIGH TIDE

7. LOW TIDE
HIGH TIDE

8. LOW TIDE

9. Earth’s Tides
What is a tide? The periodic rising and lowering of the Earth’s oceans.

10. How do tides occur?

11. 1 - The Moon and the Sun’s gravitational force (gravity) pulls on the Earth.

12. 2 – This causes the oceans facing the Moon to bulge, raising the water level (a high tide)

13. 3 - The Moon is also pulling on the Earth’s lands, so the opposite side of Earth also has high tide.

14. 4 - In between the two high tides are the low tides.

15. 5 - As the Earth rotates, each location will have 2 high tides and 2 low tides each day, about 6 hours apart.

16. Tide Chart for Jacksonville Beach, FL
Low Tide
High Tide
Friday Nov 13
4:23 AM
10:49 AM
5:12 PM
11:15 PM
Saturday Nov 14
5:09 AM
6:00 PM
Sunday Nov 15
12:24 PM
1:01 AM
11:34 AM
12:06 AM
6:06 AM
6:54 PM

17. Where do high tides occur?

19. Think About It:
The Moon is 240,000 miles away from the Earth. What prediction can you make about the tides if the distance between the Earth and Moon were to decrease?

20. There are 2 types of High Tides:

21. *Spring Tide - highest high tide (Earth, Moon, and Sun are lined up – Full Moon or New Moon)

22. *Neap Tide – lower high tide (Earth, Moon, and Sun form a 90° angle – First Quarter or Third Quarter Moon)

24. Think about it:
If the Moon had oceans would there be tides similar to what we experience on Earth? Explain.

25. Conclusion
“If a hurricane was to pass through Jacksonville, during which Moon phase would we experience the most damage?” Draw a diagram of the Earth, Moon, and Sun’s positions to help explain your answer.
* 4-5 sentences (1 paragraph)