The Distance Between Us And Them Sea Floor Spreading

To determine the rate of spreading in centimeters per year for each ocean basin convert the distance the basin has opened from kilometers.

The distance between us and them sea floor spreading.

Have each group explain what they learned to the class. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. In this activity students will gain an understanding of how geologists determine rates of sea floor spreading between two tectonic plates. Sea floor spreading in the atlantic ocean lesson plan is suitable for 6th 12th grade.

According to this theory the floor of the ocean is moving or spreading away from ridges by repetitive magma intrusion that split and spread the older sea floor causing them to be moved away from the ridge in a nearly continuous horizontal position. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. They apply mathematical concepts such as the calculation and use of velocities and conversion from one set of units to another. The corner stone of plate tectonics is the theory of sea floor spreading.

Sea floor spreading in the atlantic ocean 1. In their cooperative groups have student groups list three things they have learned by completing this activity on an 11 x17 poster. Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s what they discovered was that the magnetism of the ocean floor around. Spreading rates determine if the ridge is fast intermediate or slow.

Young scholars examine how geologists determine rates of sea floor spreading between two tectonic plates. North atlantic ocean 2. Using a strip map of the north atlantic seafloor they will measure distances and note the ages of the strips of. Activity 3 7b www calculating the rate of seafloor spreading when the distance that an ocean basin has opened and the time it took for it to open are known the rate of seafloor spreading can be calculated.

This the distance between us and them. Regularly and thoroughly clean your hands with an alcohol based hand rub or wash them with soap and water. Sea floor spreading in the atlantic ocean. This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.

Washing your hands with soap and water or using alcohol based hand rub kills viruses that may be on your hands. Answers vary depending upon the strip of ocean students choose. The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate. Because students choose different study sites their answers will vary but should fall within the range of a 9 12km my half rate.

The distance between us and them. The distance between us and them. Maintain at least 1 metre 3 feet distance between yourself and others.