View Stone Mountain Middle School

9-14-2015 Chapter 14.4: Tides pgs. 432-435

What are tides?

Are daily changes in the ocean water.

   
   

What forces causes the

The gravitational pull of the sun, Earth, and the moon.

changing water levels of

 

tides?

 

What is the dominate force

The moon’s gravity pulls on every force. The side of the Earth the moon

which causes tides?

faces has the greatest force.

What is high tide?

The water on Earth bulges or pulls toward the moon. The water level is higher than the average sea level. This bulge is called high tide. The opposite side of the Earth is pulled away from the moon, so it bulges way from the moon

   
   

What is low tide?

The water level is lower than the average sea level.

   

How often does tides

The moon revolves around the Earth. The side of the Earth facing the

Change per day?

Moon and the opposite side produces a high tide. Low tide occurs at the

 

90 degree angle from high tide. There are two high tides and low tides per day.

What is a tidal range?

Is the difference between the levels of ocean water at high tide and low

Tide.

tide

   

What is spring tide and the

Is the highest tide level that occurs during new moon and full moon. This happens twice a month.

moon positions?

 
   
   

What is neap tide and the

Is the lowest tide level that occurs during the 1st quarter moon and the Last quarter moon. This happens twice a month.

moon positions?

 
   
   

What is a tidal bore?

When high flows into an inlet, the water level is higher than normal.

   

Where does it occur?

This occurs at the Bay of Fundy in Canada.

   
   
   
   
   

Summary (Write summary in three or four sentences at the end of all notes pages on the topic)

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