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Multipoint Presentation on Layers of the Earth Find this out: • Identify the layers of the Earth. • What are the different landforms and water forms of the Earth? 1. mountain hills valley 2. lake ocean river 3. hills volcano mountain 4. mountain plain valley 5. river ocean spring 6. plain Mountain valley Study the illustration of a hard-boiled egg. How many layers does it have? Compare the hard-boiled egg with the illustration of the layers of the Earth. THE CRUST The outermost layer of the Earth. Made up of loose solid rocks. Where continents and oceans are located. About 10-65 km thick Composed of upper crust and lower crust Upper crust is made up of granite rock and is called SIAL – Silicon & Aluminum Lower crust is made up of basaltlike rock and is called SIMA - Silicon & Magnesium THE MANTLE The thickest layer of the earth About 2,880 – 2,900 km. thick. Divided into upper mantle and lower mantle. Upper mantle-solid rocks THE MANTLE Lower mantle – very hot, molten rocks Mohorovicic Discontinuity or Mohothe boundary between crust and mantle named after Andriza Mohorovicic-the discoverer Temperature is 860oC in upper mantle to 2,200oC in lower mantle. THE CORE The innermost layer The hottest layer divided into outer core and inner core. Outer core-made of molten iron and nickel THE CORE Inner core – made of solid iron and nickel 4,700oC - 5,000oC-the temperature of the entire core. Think about this… What are the layers of the Earth? Put this in mind & heart… Activity A: • Click YES if the statement is correct and NO if the statement is wrong: 1. The CORE is the hottest layer of the Earth. Yes No 2. The mantle is composed of continents and oceans. Yes No 3. Molten iron and nickel are found in the outer core. Yes No 4. Living things exist in the thickest layer. Yes No 5. The entire core has a temperature of o 4,700-5,000 C. Yes No 6. The Mohorovicic Discontinuity is found between the mantle and the core. Yes No 7. Mantle is 2,880-2,900 km thick so it is known as the thickest layer. Yes No 8. Ana plans to build a house of her own. She can do it in the crust layer. Yes No 9. The lower crust is called SIAL because of abundance of Silicon and Magnesium. Yes No 10. Living things exist in the crust. Yes No Activity B: • Choose the correct answer by clicking the number. 1. Which is the thickest layer of the Earth? Inner core Outer core crust mantle 2. In what layer do most life form exist? mantle crust moho core 3. What layer is also known as SIMA because of the abundance of silicon and magnesium? core Upper crust Lower crust mantle 4. Temperature of mantle ranges from _______ to _______. 860oC – 2,200oC 960oC – 2,000oC 1,000oC-2,100oC 4,700oC-5,000oC 5. Why is the boundary between crust and mantle called Moho? It is named after a kind of rock. It is named after a kind of soil. It is named after its discoverer. It is named after a geologist. Activity C: • Draw a line to match column A and B. B A 1. Crust ● 2. Mantle ● 3. Core ● 4. Moho ● 5. SIMA ● a. The innermost layer b. The boundary between crust & mantle c. Where life form exists d. The name of the lower crust e. Found beneath the crust Test yourself… Direction: Identify the following description of the layers of the earth by writing CRUST, MANTLE or CORE: __________ 1. The outermost layer of the earth. __________ 2. Its outer part is composed of molten iron and nickel while the inner are solid iron and nickel. __________ 3. Mohorovicic Discontinuity is found between the crust and _________. __________ 4. This layer has the thickness of 860 – 2,200 km thus referred as the thickest layer. __________ 5. It has the temperature of 4,700Oc - 5,000oc. Do this at home: Draw an illustration of the layers of the Earth. Color and label each layer. References : Textbook - Into the Future: Science & Health 6 pp.196-198 Author – Juanita M. Cruz, et. al. ISBN 971-48-0411-6 Diwa Scholastic Press Inc. Science & Health 6, pp. 192-197 Author – Carmelita Coronel, et. Al ISBN 971-07-1546-1 SD Publications, Inc. https://www.google.com.ph.lakbaypilipinas.com%252Ftravel_bohol.html%3B466%3B307 https://www.google.com.ph/blogspot.com%252F2012%252F04%252Fwonderful-crater-lake-national-parkin.html%3B800%3B529 https://earth-science%252Fearths-land-forms%252F%3B400%3B300 https://science-environmental%252Farticles%252F106153.aspx%3B600%3B600 https://www.google.com.ph/www.sciencedaily.com%252Freleases%252F2007%252F11%252F071129132753.htm %3B600%3B444\ https://valleyofdolls.bb3host.com%252Fucp.php%253Fmode%253Dregister%2526sid%253D531e09519486996d3 e2fbad36f8cde50%3B456%3B300 https://images%252Fstruct.jpg%3Bhttp%253A%252F%252Flibrary.thinkquest.org%252FC003124%252Fen%252Fstr uct.htm%3B595%3B578 https://www.google.com.ph/www.enchantedlearning.com%252Fsubjects%252Fastronomy%252Fplanets%252Fear th%252FInside.shtml%3B472%3B243 https://Norwegian-geology%252FEarths-crust-and-mantle%252F%3B709%3B857 https://www.google.com.ph/Fvolcano.oregonstate.edu%252Fvwdocs%252Fvwlessons%252Flessons%252FEarths_ layers%252FEarths_layers8.html%3B352%3B342 Prepared by: CAMILA A. ORCINO Teacher – III Mangagoy South Elem. School Mangagoy I District Bislig City Division