1. TIDES
What are tides?
Tides are the periodic rise and fall of the water level in a large body of water.

2. High Tide = when water levels are higher than the above sea level.
Low Tide = is when water levels are lower than the above sea level.

3. Click on the picture above to see animation of spring tide

4. The difference between low tide and high tide is easily seen at Mt
The difference between low tide and high tide is easily seen at Mt. Saint Michael off the northwestern coast of France.
                                                                                                                                                  

6. Bay of Fundy, Nova Scotia, Canada

8. What causes the tides?
Tides are mainly caused by the gravitational pull
of the moon on Earth’s waters.
The sun’s gravity affects Earth’s tides, but not as strongly as the moon’s gravity.

9. What is Tidal Range?
Tidal range = the difference in levels of ocean water at high tide and low tide.

10. Occur during 1st and 3rd quarter moon phases .
Spring Tide
Moon
Sun
Earth
Sun
Earth
Occur during 1st and 3rd quarter moon phases .
Occur during new and full moon phases
Regular high and low tides
Highest high tide and lowest low tide
DRAW THIS ON THE INSIDE OF YOUR FOLDABLE
Earth , sun, and moon are at a right angle
Earth , sun, and moon are aligned (in a line)

11. Spring tides occur during full moon and new moon.
Gravitational pull of the sun
Gravitational pull of the moon
Spring tides occur during full moon and new moon.
Gravitational pull of the moon and the sun

12. Neap tides occur during 1st and 3rd quarter.
Gravitational pull of the moon
Gravitational pull of the sun
Neap tides occur during 1st and 3rd quarter.
Gravitational pull of the sun
Click on Picture
Gravitational pull of the moon

13. Tides Review (Exit Ticket)
What are tides?
What is the dominant force that moves ocean water?
Which one (the sun or the moon) has a bigger effect on tides?
What is the difference in levels of ocean water at high tide and low tide called?
How are the sun, Earth, and moon situated in space so that we experience a spring tide?
How are the sun, Earth, and moon situated in space so that we experience a neap tide?