The ocean floor has the same general characteristics as the above-water areas of the world, including View maps of ocean depth in two and three dimensions, and use these maps to plot a safe route for ships to follow. In this activity, you will learn how scientists use math to find out about the ocean floor. Shallow Coral Reef Habitat | NOAA Fisheries Assignment: Scientific Measurements Have your students use Google Earth to study the underwater features of our planet. The vessel can travel at about 10 knots ( approx. sea floor & cont drift - Activity 3 Super-Detailed Interactive 3-D Seafloor Map The continental shelves and ocean floor are home to many important minerals, including oil and natural gas. Map the ocean floor, identifying the major mountain ranges and rifts, learn about ocean currents and color a map of the prevailing currents on earth, make an ocean in a bottle craft and then round it out with an ocean lapbook. Ocean Floor Mapping Worksheets & Teaching Resources ⦠Mapping the Ocean Floor. Objective: Students will draw contour lines based on NOAA soundings on a nautical ⦠Compute the Total Distance Traveled by multiplying the Time for the Signal to Return by the speed of sound (1,500 m/s), and record this distance on the data table on the back of this sheet. During this activity, you will use this method to construct a map for two diferent regions of the ocean floor. Sediment thickness in the Atlantic Ocean floor is about twice that of the Pacific Ocean floor. Ocean floor features | National Oceanic and Atmospheric ... The Ocean Floor Lab Activity â Contour of the Ocean Floor Name: _____ By means of echo sounding and sonar, scientists have been able to map the shape and relief of the ocean floor. OBJECTIVES Following completion of this lesson, the students will be able to: Develop the understanding that the bottom structure of underwater habitats can be mapped. Bathymetry, the shape of the ocean floor, is largely a result of a process called plate tectonics. Oceans - Activity 4: Mapping the Ocean Floor - YouTube If you want to see mapping the ocean floor in action in real life, hereâs a video. A device that scientists use to map the ocean floor is _____. Very little of the ocean floor has been mapped directly. On the world map provided on the following page, draw the global mid-ocean ridge system in red. This lab works equally well using graphing calculators with the probes. Mapping, exploring, and characterizing the U.S. EEZ is necessary for a systematic and efficient approach to understanding our resources. ACTIVITY NAME: Ocean Floor Mapping Worksheet . NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the sea floor such as shipwrecks, and map the sea floor itself. Bathymetric maps show depths of landforms below sea level. Save blue for seafloor contours. Lewis Nixon invented the first sonar type listening device in 1906, as a way of detecting icebergs. The data in the table below represents various measurements of the depth of the Atlantic Ocean between Cape May, New Jersey and Cape Roca, Portugal. The Ocean Drilling Project brings together scientists and governments from 20 countries to explore the earth's structure and history as it is revealed beneath the oceans' basins. A animal fossil (Glossopteris) has been found in rocks in Africa, South America, Australia, India, and Antarctica. Lesson 24 . In this activity, you will examine an echo sounder record. Place two strips of velcro across it. So how do we make maps of the global ocean floor? The outer rocky layer of the Earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig-saw puzzle floating on top of the Earth's hot flowing mantle. Students use a simple calculation to determine the depth of the ocean floor at 15 points from Miami Beach eastward to the wreck of the SS Sapona in the Bahama Islands. Seabed 2030 is a collaborative project between the Nippon Foundation and GEBCO. These measurements were first made through soundings , where a weighted line (lead line) was let out by hand until it touched the bottom, and the depth could be recorded from the length of the line (Figure 1.4.1). Seafloor & Continental Drift - page 16 Activity #3 - Bathymetric Mapping Concepts # 1, 2 #1 The floor of the ocean is composed of hills, plains, ridges, trenches, and seamounts. old ocean floor sinks back into the ground . Satellite imagery may also be used to map features in the water, such as coral reefs. Procedure Obtain a 3-dimensional seafloor model in a box covered with paper from your teacher. 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 ⦠The first modern breakthrough in sea floor mapping came with the use of underwater sound projectors, called "sonar", which was first used in World War I. By the 1920s, the Coast and Geodetic Survey (an ancestor of the National Oceanic and Atmospheric Administration's National Ocean Service) was using sonar to map deep water. Overview/Annotation: Mapping the ocean floor must be done by indirect observation. In fact, the entire ocean floor has been mapped to a maximum resolution of approximately 5 km which means that all features on the ocean floor that are larger than 5 km across have been mapped. For this set of data, the depth has already been calculated for you. Plate Tectonics Mapping. Introduce kids to the fun of mapping, with this hands-on ocean map activity. Hydrothermal vents in the deep ocean typically form along the mid-ocean ridges, such as the East Pacific Rise and the Mid-Atlantic Ridge.These are locations where two tectonic plates are diverging and new crust is being formed.. Mapping the seafloor using a sonar array mounted on the hull of a research vessel has advantages. The government website where federal agencies post discretionary funding opportunities and grantees find and apply for them This super-detailed map of the ocean floor's topography is based on satellite measurements of subtle lumps on the ocean's surface. Seafloor Mapping. ACTIVITY NAME: Ocean Floor Mapping Worksheet OBJECTIVE: Provide students a basic understanding of how sonar (SOund NAvigation and Ranging) is used to map the ocean floor. The California Seafloor Mapping Program (CSMP) is a cooperative program to create a comprehensive coastal/marine geologic and habitat base map series for all of California's State waters. 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