Mapping The Ocean Floor Worksheet Introduction As a class you will briefly review and discuss mapping technology sonar and how it is used to map the seafloor Then you will gather data to address the question How do scientists create and use maps to help them identify features on the ocean floor
R is the ocean floor at that point a Oceanographers use the formula D 1 2 v t where D is the ocean depth v is the speed of sound in water 5 806 ft sec and t is for the time interval seconds between sending and receiving the sound waves Use this formula to complete the table below of sonar data for 2 locat The surface of the oceans covers an area of more than 12 million square km Did you ever wonder what was below the surface of all that water Many early explorers did and they used several methods to try to determine the shape of the ocean floor At one time sailors tied weights to the end of ropes and lowered them to the ocean floor marked the distance when the rope hit bottom and then
Mapping The Ocean Floor Worksheet
Mapping The Ocean Floor Worksheet
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Contours of the Ocean Floor Lesson Plan The seafloor is covered with interesting geologic features from trenches to seamounts but we have only mapped 20 of the global ocean There is still much work that needs to be done before we have a complete view of the seafloor and its features In the following lesson students learn how to become bathymetry experts and use real mapping data to learn Created Date 6 7 2002 10 27 29 AM
Part II Mapping the Ocean Floor f your data you will plot these depths on a graph Smoothly connect the points and you will have a cr p of the South Atlantic Ocean Procedure ship s location at 19 points in the Atlantic Ocean The numbers in the Ocean Depth column gi Mapping the Ocean FloorWorksheet page 1 Read the information below and then scan the table On a separate sheet answer the questions that follow In this activity you will learn how scientists use math to fi nd out about the ocean floor The data in the table below represents various measurements of the depth of the Atlantic Ocean between
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Focus Hot spots and mid ocean ridges Grades 7 8 Physical Science Students identify types of plate boundaries associated with movement of the Earth s tectonic plates compare and contrast volcanic activity associated with spreading centers and hot spots describe processes which resulted in the formation of the Galapagos Islands and MAPPING THE OCEAN FLOOR During this lesson students participate in a simulation of the pre sonar method of mapping underwater terrain Following completion of this lesson the students will be able to Develop the understanding that the bottom structure of underwater habitats can be mapped
Lesson Plan Overview After an introduction in which students try to identify hidden objects by the sounds they make when shaken in a box students use string to map a model ocean floor by taking depth readings to simulate sonar Introduction The Ocean Floor Features Underwater Using sonar seismic profiling satellites and underwater research vehicles oceanographers have discovered that the topography or shape of the ocean floor is quite similar to many of the dramatic sights we see on the landforms on Earth s continents
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Mapping The Ocean Floor Worksheet - The U S Geological Survey in cooperation with the Massachusetts Office of Coastal Zone Management CZM is conducting geologic mapping of the sea floor of the Massachusetts inner continental shelf to characterize the surface and shallow subsurface geologic framework within the Massachusetts coastal zone The overall goal of this project is to