Complete the body of your

Transcription

1 Complete the body of your notes All blanks filled in All vocabulary words highlighted All pictures drawn with at least 3 labels each. Revise in pen. Review your notes and write the questions. Write the NOTE Summary.

2 ? The daily rise and fall of Earth s waters at it s coastlines.

3 ? The occurrence of tides are mainly due to the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.

4

5 ? Some locations experience: two almost equal high tides and two low tides each day one high and one low tide each day two uneven tides a day, or sometimes one high and one low each day; this is called a mixed tide.

6 For Example

7 ? The times and heights of the tides at each location are influenced by the alignment of the Sun and Moon the pattern of tides in the deep ocean ocean currents ocean depths the shape of the coastline

8 The same tidal forces have different results depending on many factors, including coast orientation, continental shelf margin, water body dimensions. San Diego and Mexico experience mixed tides.

9 ? The tidal forces affect the entire earth, but the movement of the solid Earth is only centimeters. The atmosphere is much more fluid and compressible so its surface moves kilometers.

10 ? Because gravity tugs on nearby things more strongly than on distant things, the oceans closest to the moon feel the greatest attraction to the moon. This creates a bulge of water called a tidal bulge. High Tide Side

11 ? Tides on the far side of the Earth are caused by inertial force. These most distant oceans are, in essence, left behind as the Moon pulls the other parts of Earth toward itself with greater force. High Tide Side

12 Water and inertial force

13 What is the monthly tide cycle? Changes in the positions of the Earth, the moon, and the sun affects the heights of the tides during the month.

14 What are spring tides? Twice a month - full and new moon - combined gravitational pull of sun and moon produces the greatest difference between the height of high and low tide.

15 S What are spring tides? Twice a month - full and new moon - combined gravitational pull of sun and moon produces the greatest difference between the height of high and low tide. Earth, moon, and sun are in a straight line Straight

16 What are neap tides? First and third quarters of the moon sun and moon pull at right angles to each other - tide with the least difference between high and low tide. 90

17 What are Nneap tides? First and third quarters of the moon sun and moon pull at right angles to each other - tide with the least difference between high and low tide. Earth, moon, and sun at a ninety degree angle 90 Ninety

18 What do tides affect? The Moon accounts for about 60% of our tides. The Sun accounts for 40% of the tides on Earth today. Tides responsible for some of the ocean circulation which helps regulate temperatures.

19 How are organisms affected by tides? Animals rely on low tides for food Tidal currents move floating animals and plants to and from breeding areas in estuaries to deeper waters Nutrients are recirculated Sea turtles lay their eggs with the high tide.

20 How are humans affected by tides? Fishermen use their knowledge of the tides and tidal currents to help them improve their catches. Navigating ships Building Bridges

21 How can tidal energy be used? Movement of huge amounts of water between high and low tide is a source of potential energy.

22

23 Complete the body of your notes All blanks filled in All vocabulary words highlighted All pictures drawn with at least 3 labels each. Revise in pen. Review your notes and write the questions. Write the NOTE Summary.