1. What are some experiences you have had with waves?
Bell Ringer Question
12/13/11
What are some experiences you have had with waves?

2. Learning Targets
1). You must understand what produces ocean waves. 2). You need to understand that waves pass energy not water. 3). You must understand and be able to explain how tides form. 4). You need to be able to explain what causes high and low tides.

3. Wave Properties What Is a Wave? Characteristics
Rhythmic movement that carries energy
In the ocean, waves are generated by wind moving over the water’s surface.
Crest: Highest Point
Trough: Lowest Point
Wavelength: Distance from crest to crest or trough to trough.

4. Weird Waves How Waves Work Important Ideas Waves Pass on Energy
How Waves Work
Important Ideas
Waves Pass on Energy
Water moves up and down but it will return to its original position.
Energy moves forward
Water Does NOT move Forward
DEMO.

5. Come up with a memory clue for wave, crest, and trough.
Reflection Break
Come up with a memory clue for wave, crest, and trough.

6. Tides Change From Place to Place
What is a Tide?
Tides Change From Place to Place
Periodic Rise and Fall in Sea Level
(Sea Level: height of ocean)
High Tide
Highest Water ever rises
Low Tide
Lowest level of water

7. Cause of Tides What causes Tides?
Gravitational Attraction between the Earth, Moon, and Sun.
Gravitational Attraction decreases with distance.
Force pulling the water towards the Moon or Sun.

8. Lunar Tide Solar Tide Caused by the Moon
More intense because the moon is closer to the Earth
Gravitational Pull is more intense
Caused by Sun
Less intense
Sun is farther away from the Earth
Combined These Tides Can Be Extreme

9. Tides
Video
If the Sun and Moon are in a straight line and pulling on the Earth = High Tides
If the Sun and Moon are not in a straight line = low tides
Combined Effects = High Tides

10. Come up with a memory clue for Tides, Lunar Tide, and Solar Tide.
Reflection Time
Come up with a memory clue for Tides, Lunar Tide, and Solar Tide.

11. On Your Notes…
Write Down the Chapter You Feel the Most Confident About Going Into Your Final

12. Now…
Write Down What Chapter You Feel The Least Confident about Going Into Your Final.