1 Internet-trusted security seal. In this lesson on the spreading of the seafloor, students use maps and models to observe how the sea floor spreads. Sea floor spreading worksheet answer key strokes. Get access to thousands of forms. As spreading pulls the new oceanic crust apart, stripes of approximately the same size should be carried away from the ridge on each side. Students examine how geologists determine rates of sea floor spreading between two tectonic plates. The Earth's Magnetic Field The Earth's magnetic field is thought to arise from the movement of liquid iron in the outer core as the planet rotates. Unique ecosystems that exist in total darkness.
- Sea floor spreading worksheet answer key pearson education
- Sea floor spreading worksheet answer key strokes
- Modeling sea floor spreading answer key
Sea Floor Spreading Worksheet Answer Key Pearson Education
These smokers are the sites of mineral deposits and. Examine data from sediments on the ocean floor, determine whether the data support the. From Fisher-EMD: (1) Phosphorescent map of the ocean floor: measures 24" X 24" ($10. 4) the nature of the Earth's magnetic field and the fact that it has reversed its polarity many. 3 (March 1983), p. 22-29. Sea floor spreading worksheet answer key pearson education. Smithsonian Institution. What happens to old oceanic crust as new molten material rises from the mantle 4. Extensions: Hydrothermal vent systems, called black and white smokers, found at. A MODEL OF SEA-FLOOR SPREADING. The pamphlet describes studies of ocean. Mantle and is about 100 km thick.
Sea Floor Spreading Worksheet Answer Key Strokes
Detect steel-hulled submarines. Deep-sea trenches are long, narrow basins which extend 8-11 km below sea level. Sea-floor spreading a hypothesis, proposed in the early 1960s, that new ocean floor. Such boundaries are marked by subduction, earthquakes, volcanoes, and.
Modeling Sea Floor Spreading Answer Key
8) Cut the paper in half parallel to the long edge to get two strips of paper as shown in Figure. Tectonics, see Tarbuck and Lutgens (1994). Students before they make their models. They complete an introductory tutorial on Excel for students with no prior Excel experience. Accredited Business. Seafloor Spreading Worksheet. This worksheet has 8 fill in the blank questions. Modeling sea floor spreading answer key. Oceanic spreading centers are one of the most exciting discoveries made during the last. For each student: 2 sheets of 8. Frontier on Earth" ($79.
To reinforce the slits you have made, place masking tape over each one and re-cut the slit though the tape. Plate movement is caused by convection currents in the mantle (Fig. Known ocean floor is dated at about 200 million years, indicating that older ocean floor has. Get a detailed look at plate tectonics with a 14-slide presentation that highlights the Earth's layers, continental drift, seafloor spreading, the theory of plate tectonics, and boundary types. Floor topography, sediments and mineral resources. Discusses mapping of volcanoes, faults, canyons, and lava flows on the ocean floor using a. side-scan sonar device called GLORIA (Geologic Long-Range Inclined Asdic). The Earth's layers The Earth is a layered planet consisting of crust, mantle and. Students explore the basic concept of seafloor spreading. Order from the American Geophysical Union, Attn. 4) Draw a third vertical line to the left of the center line so that it lies 3 cm from the left edge of the paper.