Tables 4 and 5 contain the layer depth information for the. The crust is a silicate solid, the mantle is a viscous molten rock, the outer core. The density of earths surface layers is much less than the overall density of the planet, as calculated from the planets rotation. Layers of earths interior by mighty in middle school tpt. How is the earths mantle like a peanut butter sandwich. Lateral variations in seismic wave speeds have been documented in all major layers of the. Finally color each layer of the earth according to whether it is. The student will investigate the different layers of earth s interior and get an idea of the differences and composition of each layer. Explain how scientists believe the earths four layers were formed. The crust is the layer that you live on, and it is the most widely studied and understood. In the previous chapter, you have noted that the earthforming materials have been distributed in the form of layers from the crust to the core.
Use the layers panel to examine layers and show or hide the content associated with each layer. Earths layers the internal structure of the earth earths layers kelvinsong, from wikimedia commons the interior of the earth is made up of several concentric layers of which the crust, the mantle, the outer core and the inner core are significant because of their unique physical and chemical properties. Notice also how the chemical composition of the earth varies with depth. Which of these layers is responsible for earths magnetic field.
You may have heard that ogres are like onions because they have many layers. The first examination for which these tables will be used is the january 2012 regents examination in physical settingearth science. This foldable is a great addition to a middle school earth science unit on earths interior or the layers of the earth. These layers formed as the building blocks of earth, known as planetesimals, collided and collapsed under their own gravity around 4. Earths layers are made of different mixtures of elements. If we think of the earth as a baseball, the crust is like a postage stamp stuck on a baseball. The earth is approximately 4,000 miles 6,400 kilometers from surface to center. Lesson content overview students will look at models depicting each layer of the earths interior and decide which layer is.
Earths interior answer key displaying top 8 worksheets found for this concept some of the worksheets for this concept are answer key, inside earth work, name earths interior work 1 altizio, earths crust and interior, beneath our feet the four layers of earth, structure of the earth work, earth reading comprehension work, layers of the earths atmosphere work. Earths structure interactive learning sites for education. Earths interior is generally divided into three major layers. This fact also restricts deep drilling, thus causing hindrance to direct observation of the materials of the earths interior. Click here to take a journey to the center of the earth. The inner structure of the earth is described by the authors on the basis of systematic processing and evaluation of the traditional and newer theories and conceptions. Describe characteristics composition of each layer color oceanic crust. Scientists know that the core is metal for a few reasons. Nevada reno this diagram shows us how thin the crust is in relation to the rest of the earth, along with relative sizes of the mantle and core. Using a pencil, draw lines and label the layers of the earth onto the register tape based on the data table below and the scale 1 cm 100 km. With its immense heat energy, the inner core is like the engine room of the earth.
Use this quiz to study for the earths interior quiz. The major constituent elements of the mantle are silicon and magnesium and hence it is also termed as sima. Direct sources deep ocean drilling reveals humongous information through analysis of materials collected at different depth. The earths interior is composed of four layers, three solid and one liquidnot magma but molten metal, nearly as hot as the surface of the sun. The fact that the earth is not a homogeneous, structure less body has been realized since the time of isaac. Researchers call it the inner core, which is 70% as wide as the moon.
Earth s layers are made of different mixtures of elements. When measuring the scale distance, be sure the measure from the previous line. A knowledge of earths interior is essential for understanding plate tectonics. The earths interior three major layers three major layers inside the earth interior are the crust, mantle and the core. The lightest materials make up the outermost layer. Fill out the small squares with the information for each of the main layers of the earth, using your textbook. Earth has layers that have specific conditions and composition. The diagram below shows the layers of the earths interior. The major layers of the earth, starting from its center, are the inner core, the outer core, the mantle, and the crust. Students color, cut, and assemble this interactive foldable, and then glue into their interactive science notebooksjournals.
Rare diamond reveals earths interior is all wet by becky oskin a battered diamond that survived a trip from hell confirms a longheld theory. First, write the name of the layer of the earth that each line is pointing to for letters ae. Meteorsmeteors are bits of interplanetary material falling through earths atmosphere and heated to incandescence by friction. Configuration of surface of earth is a product of exogenic and endogenic processes in earth. At the heart of our planet lies a solid iron ball, about as hot as the surface of the sun. It is the endogenic processes that determine the interior configuration of earth. It is interesting to know how scientists have gathered information about these layers and what are the characteristics of each of these layers. The inner earth is composed of three main parts, sometimes called the layers of the earth. Earth is made up of several different layers, each of which has unique. It also provides a useful, and surprising, demonstration of the relative volumes of the earths layers. The moho is not located at a uniform depth, but about 10 kilometers 6 miles below the seafloor and about 35 kilometers 22 miles beneath the surface of continents. Meteors that at times reach the earth are an important source. The crust makes up less than 1 percent of earth by mass, consisting of oceanic crust and continental.
Temperature, density, and viscosity ability to flow. Inner core red outer core redorange lower mantle orange middle mantle light orange 2. The mantle is much hotter and has the ability to flow. Structural geology of the earths interior earth sciences.
How much do you know about earth layers and density. The layering of earth has been inferred indirectly using the time of travel of refracted and reflected seismic waves created by earthquakes. The layers that appear in the pdf are based on the layers created in the original application. Earths interior how do geologists learn about earths interior. Some layers may be organized into nested groups with a parent layer. Kristin bartee focus on inquiry the student will investigate the different layers of earths interior and get an idea of the differences and composition of each layer. The composition of earth the earth is divided into several layers with different composition and physical properties. This layers of the earth foldable is great for an interactive science notebook, but can also be used as a stand alone book. Fill out the small squares with the information for. Learn about the structure of the earths interior crust, mantle and core and composition of its different layers. They are, in order from the exterior to the interior the crust, the mantle, the outer core, and the inner core. Nearly 84% of the earth s volume and 67% of the earth s mass is occupied by the mantle. The core does not allow shear waves to pass through it, while the speed of travel seismic velocity is different in other layers.
The chemical and mechanical classifications for the upper layers of the earth are illustrated in. The temperature in the earths interior is so high that it can even melt any tool used for drilling. Continental drift continental drift is a theory developed in 1912 by alfred wegener that states that earths continents move on the surface. The inner core is in the centre and is the hottest part of the earth. Scientists divide the mantle into the upper and lower mantle. The changes in seismic velocity between different layers causes refraction owing to snells law, like light bending as it. The earths layers foldable marcias science teaching ideas. This edition of the earth science reference tables should be used in the classroom beginning in the 201112 school year. Use the earth science reference tables label each layer of earths interior with the. Some of these layers are made up of even more layers and theyre always on the move. The composition and structure of earth physical geography. Earths interior layers of the earth inferred by earthquake waves esrt page 10 determine the following.
The crust silicate rocks, primarily granite and basalt oceanic crust mostly basalt continental crust igneous, metamorphic, and sedimentary rocks. If the surface layers are less dense than average, then the interior must be denser than average. The interior of the earth can reveal the nature of lithosphere. The core is divided into a liquid outer core and a solid inner core. Other layers may be in groups with no parent layer. This slide show is a minilesson on the layers of the earth. The layers of the atmosphere are from outside to inside. Different layers of the earth its interior, structure and composition. Ppt the layers of the earth powerpoint presentation. The thickest part of the crust is under mountain ranges.
For the love of physics walter lewin may 16, 2011 duration. Powered by create your own unique website with customizable templates. The earth is made of four layers, the inner core, the outer core, the mantle, and the crust. The cover has a picture of the earth and the inside page allows students to use the word bank to label the layers of the earth. Earthquake waves used to find earths interior layers it is impossible for drilling equipment. Draw the layers of the earth in your journal use a full page label each layer. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to. The hard, brittle crust extends from earths surface to the socalled mohorovicic discontinuity, nicknamed the moho. The structure of the earth the earth is made up of four distinct layers. The top layer, which is what we stand on is the crust, next comes the mantle and finally the core. Hence, this lesson is about the interior of the earth. Moonquakes of very low energy are caused by land tides produced by the pull of earths gravity, and, from analysis of moonquake data, scientists believe the moon has two layers.