8 TidesEarth’s rotation on its axis affects which tides will occur at a certain place on Earth.
9 What causes tides?Tides are caused by the interaction of Earth, the moon, and the sun.The moon pulls on the water on the side closest to it more strongly than it pulls on the center of the Earth.
10 What causes tides?The moon’s pull creates a bulge of water, called a tidal bulge, on the side of Earth facing the moon.The water opposite the moon is pulled toward the moon less strongly than the water facing the moon.This water is “left behind,” forming a second bulge.
11 The Daily Tide CycleAs Earth turns completely around once each day, people on or near the shore observe the rise and fall of the tides as they reach the area of each tidal bulge.
12 The Daily Tide Cycle High tides occur about every 12 hrs. and 25 mins. Low tides occur about every 12 hrs and 25 mins.The time between low tide and high tide is about 6 hours.
13 Drawing of low tide/high tide for a 24 hour period. If it is 3pm for the first low tide, six hours later it will be (the next box). Label and put time and picture. Also show the number of hours between each picture of the tides.
14 Tides occur at different locations on Earth because the Earth rotates more quickly than the moon revolves around the Earth.
16 Photos Showing Progress of high tide coming in http://www
17 The Monthly Tide CycleChanges in the positions of Earth, the moon, and the sun affect the height of the tides during a month.
18 Spring TideTwice a month, at the new moon and the full moon, the sun and moon are in a straight line.Their combined gravitational pull produces the greatest range between high and low tide, called a spring tide.
19 Neap TideIn between spring tides, at the first and third quarters of the month, the sun and moon pull at right angles to each other, producing a neap tide.A neap tide is a tide with the least difference between low and high tide.
24 The Monthly Tide CycleThe movement of large amounts of water between high and low tide are a source of potential energy—energy that is stored and waiting to be used.Spring tideFull moon-highest tideNew moonNeap Tide- half moon