PPT-What causes tides? Tides are the rise and fall of ocean water. Water levels rise to

their highest point of the day and fall to their lowest point every 125 hours The tides result from the rotation of Earth on its axis as gravity from the moon and the sun pull on Earth and its water Think . They follow a cycle that coincides with the 24 hour 50 minute lunar day the time it takes earth to make one complete rotation relative to the moon Along Americas Atlantic Coast two high and low tides occur daily with relatively little difference bet Rockefeller Jr Memorial PKWY Big Hole NB Cowpens NB Fort Donelson NB Fort Necessity NB Moores Creek NB Petersburg NB Stones River NB Tupelo NB Wilsons Creek NB Kennesaw Mountain NBP Richmond NBP Brices Cross Roads NBS Chickamauga and Chattanooga NMP While written to incorporate computer technology the lesson can be easily adapted to paper and pen Lesson Objective Students will compose a series of slides based on the exhibits at OC The teacher may select one type of exhibit such as those that co Parker MacCready, January 2011. Reference: . Admiralty Manual of Tides. , . Doodson. & Warburg, 1941, His Majesty’s Stationery Office. Orbital Force Balance. Tides are forced by the sun and moon, with similar physics. The Moon’s forcing is about twice that of the sun.. Section 3: Currents, Waves, and Tides. Earth Science. Mr. Margetan. . Ocean Currents. Surface Currents – Movement of water on the surface, primarily caused by winds. Ocean Currents. Longshore. Currents – Currents which run parallel to the shoreline due to energy released from waves. Moon-Earth Relationship. The . revolution. of the Moon around the Earth makes the Moon look as if it is changing shape in the sky.. This is caused by the different angles from which we see the lighted part of the Moon's surface.  . 6. th. Grade Earth Science. Currents. A current is a large stream of water that flows through the ocean. . Two types of currents. Surface Currents Deep Currents. Datums. plus some NOS Resources. Marti . Ikehara. , Geodetic Advisor. NOAA’s NGS, Sacramento. Marti.ikehara@noaa.gov. CLSA Sonoma County chapter meeting, Feb 2013. 1. 12. King Tide, Humboldt Bay, Dec ‘12 event. Highways in the Sea. What forces are responsible for currents?. Wind. : transfers energy through friction on surface; causes currents and waves. Sea level. : steeper slope=greater pressure gradient=drives a larger, faster current. from . applying tides explicitly . in a global ocean model. . Alex Megann. 1. and Maria Luneva. 2. Project . kickoff. meeting, 5 April 2018. 1. National Oceanography Centre, Southampton, UK. . 2. Pg. 350. Oceans. Since ancient times, Oceans have provided many things:. Food. Trade Routes. Habitats. Exploring the Floor. Bathymetry. : is the study of depth contours on the ocean floor.. Sonar. . Physical Oceanography. How is salinity measured?. How does salinity affect the density of water?. What other variable affects the density of water?. 2. Last class we learned about salinity. There are . Sections:. The Motion in the Ocean: Waves, Tides, and . Currents. What . is “Seawater?”. Ocean Basics: Pressure, Density, Temperature, and Acoustics. Oceanic . Regions: The Open Ocean, Benthic Ocean, and Sea floor Zones. What celestial object is attracted to the Earth?. The Moon. What celestial object is the Earth attracted to?. The Sun. Effect of the moon on the Earth. The Moon’s gravity also pulls on the Earth, but because the Earth is solid, it doesn’t seem to respond..