1. Currents Where are the Oceans? Identify the Oceans Tides Waves
The Ocean Floor
Ocean Storms

2. Where are the Oceans?

3. PREDICT: What percent of the earth is covered in water
PREDICT: What percent of the earth is covered in water? What percent is land? Explain your prediction.

4. PREDICT:What percent of the earth’s water is salt
PREDICT:What percent of the earth’s water is salt? What percent is fresh? Explain your prediction.

5. Identify the Oceans of the World

6. World Ocean Facts Area (1,000,000 km²) Volume (1,000,000 km³)
Average Depth (m)
Maximum Depth (m)
Atlantic Ocean
82.4
323.6
3926
9200
Pacific Ocean
165.2
707.6
4282
11,022
Indian Ocean
73.4
291.0
3963
7460
Arctic Ocean
14.1
17.0
1205
4300

7. Currents

8. Global "conveyor belt" 
when deep water in the North Atlantic, sinks, moves south, and circulates around Antarctica, and then moves northward to the Indian, Pacific, and Atlantic basins.
It can take a thousand years for one water molecule to circulate the conveyor belt

9. Coriolis Effect Effects currents
In northern hemisphere currents move clockwise
In southern hemisphere currents move counterclockwise

10. Surface currents Deep currents The upper 400 meters of the ocean (10%)
Effected by
Solar heating
Winds
Coriolis Effect
Deep currents
90%
effected by denisty

11. Arctic Ocean
Atlantic Ocean
Pacific Ocean
                                                          
                                                          
Indian Ocean
On your map, color the warm currents red and the cold currents blue. Label the 4 oceans.
                                                          

12. Global wind patterns
Account for surface currents

13. Making Currents

14. Tides

15. Tides The rise and fall in sea level is called a tide.
One low-tide/high-tide cycle takes about 12 hrs and 25 min.
Tidal range is the difference in ocean level between high-tide and low-tide

16. What is the Tidal Range? HT = 30 ft, LT = 20 ft HT = 20 ft, LT = 12 ft

17. What causes tides?
The gravitational forces of the moon and sun on the water causes the tides..
The moon, being nearest, has the greatest effect even though the sun is the larger of the two.

18. Gravitational Effect of the Moon
Two big bulges of water form on the Earth:
one directly under the moon
another on the exact opposite side
As the Earth spins, the bulges follow the moon.

20. Gravitational Effect of the Sun
Spring Tides
Earth, Moon, and Sun are lined up
High Tides are higher and Low Tides are lower than normal
New moon, full moon

22. Gravitational Effect of the Sun
Neap Tides
Earth, Moon, and Sun form right angles
High Tides are lower and Low Tides are higher than normal
Quarter moon
Comes twice a month: 1st and 3rd quarters of mood

24. Ocean tides at the Bay of fundy
Tidal wave (national geographic)
Ocean odyssey
Ocean tides:
Tidal wave Alternative energy

25. How are Tides Predicted?

26. Waves

27. Waves
A Wave is a rhythmic movement that carries energy through matter or space.
In oceans, waves move through seawater

29. Waves Caused by: Wind Earthquakes
Gravitational force of the Moon and Sun.

30. Wave Movement
When a wave breaks against the shore, the crest outruns the trough and the crest collapses.
Called a breaker.
In this case, water does move forward and backward.

32. Waves Caused by Wind
When wind blows across a body of water, friction causes the water to move along with the wind.
Wave Height depends on –
Wind speed
Distance over which the wind blows
Length of time the wind blows

36. What Makes A Wave?
Let’s Make A Wave

37. Tsunami
Hurricane
Ocean Storms
Typhoon
El Nino
Cyclone

38. Ocean Weather, Temperature, and Tides
Resources:
Neptune’s Web
Ocean Weather, Temperature, and Tides
Ocean Planet Exhibit in the Smithsonian Museum of Natural History
Secrets at Sea Game

39. Let's Play Jeapordy