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SCIENCE 10 Earth and Space LESSON 1: The Internal Structure of the Earth Crack the Use the given EMOJIS as Code clues to decode the hidden word. A B C DEFGH I J K LMN OP Q RS T U VY L A Y ERS OF...
SCIENCE 10 Earth and Space LESSON 1: The Internal Structure of the Earth Crack the Use the given EMOJIS as Code clues to decode the hidden word. A B C DEFGH I J K LMN OP Q RS T U VY L A Y ERS OF T HE E ART H THE INTERNAL ACTIVITY No. 1 STRUCTURE OF THE EARTH QUARTER 1 – WEEK 1 Learning Competency: Describe the internal structure of the Earth. (S10ES-Ia-j-36.4) Objective: Identify the different layers of the Earth. OCEAN MIDDLE MANTLE Layers of the Earth. Color and label the Layers of the Earth according to the given instructions below. Instructions: Color and label the Ocean BLUE Color and label the Oceanic Crust LIGHT BROWN Color and label the top of the crust GREEN Color and label the Continental crust DARK BROWN Color and label the uppermost rigid mantle YELLOW (*Note: The crust and the uppermost rigid mantle collectively are called the lithosphere) Color and label the Asthenosphere YELLOW ORANGE Color and label the middle mantle LIGHT ORANGE Color and label the Mesosphere (lower mantle) DARK ORANGE Color and label the outer core REDDISH-ORANGE Color and label the inner core DARK RED Draw and arrow from the crust towards the core. Then label it with - Pressure, Density, and Temperature Increase Lithosphere Oceanic Crust 1 9 Uppermost Rigid Mantle 2 Continental Crust 3 5 Asthenosphere Middle Mantle 4 6 Outer Core Lower Mantle 7 8 Inner Core Compositional vs. Mechanical Layers Layers of the Earth Compositional Mechanical Based on chemical Based on rigidity composition and movement Crust Lithosphere Mantle Asthenosphere Core Mesosphere Outer Core Inner Core LEARNING CHECK! Layers of the Earth Compositional 1 Mechanical 2 Based on chemical Based on rigidity composition and movement Crust 3 6 Lithosphere Mantle 4 7 Asthenosphere Core 5 Mesosphere 8 Outer9Core 10Core Inner Composition al Layers Compositional Layers of the Earth Mantle 1 Core 2 Crust 3 Compositional Layers of the Earth CRUST (SiAl) Outermost layer Thinnest layer Made up of solid rocks About 5 Km to 70 Km thick Oxygen is the most abundant element Two Types -Continental Crust -Oceanic Crust Rocks that form the Crust The continental crust is mostly made The oceanic crust is denser because it is up of less dense/light rocks called mainly made up of denser/heavier rocks GRANITE called BASALT Oceanic Crust vs. Continental Crust A B Oceanic Crust Continental Crust Thinner but denser Thicker but less dense (heavier) (lighter) Found under landmasses Found under oceans (forms (forms the continents) seafloor) Compositional Layers of the Earth MANTLE (SiMa) Middle layer Thickest layer Made up of solid hot plastic-like rocks Makes up 85% of the Earth’s volume & 70% of its mass. Elements: O, Si, & Mg About 2,900 Km thick Compositional Layers of the Earth CORE (NiFe) Innermost layer Made up of Fe and Ni 4,400 to 5,000 Degrees Celsius About 2,300 Km thick Subdivided into two: -Outer Core -liquid Fe & Ni -source of Earth’s magnetism -Inner Core -Solid Fe & Ni Temperature, Density and Pressure increase as depth If the inner core is hottest than the outer core, why does the outer remains liquid while the inner core remains in a solid state? The effect of pressure (holding the particles of the core close together or compacted) exceeds the effect of the temperature. PRESSURE FREEZING LEARNING CHECK! Compositional Layers of the Earth Mantle 1 Core 2 Crust 3 Crust, Mantle or Core CORE 1.Innermost layer of the Earth CRUST 2.Outermost layer of the Earth MANTLE 3.Middle layer of the Earth CRUST 4.Thinnest layer of the Earth MANTLE 5.Thickest layer of the Earth CORE 6.Layer with the highest pressure temperature, and pressure CRUST 7.5 Km to 70 Km thick CORE 8.2,300 Km thick Crust, Mantle or Core CRUST 9. Contains Silica and Aluminum (SiAl) MANTLE layer MANTLE 10. 2,900 Km thick 11. Contains Silica and Magnesium (SiMa) CORE layer CORE 12. Contains Iron and Nickel (NiFe) layer CONTINENTAL 13. 4,400 to 5,500 Degrees Celsius 14. Type of crust that is thicker but less OCEANIC denser 15. Type of crust that is thinner but denser Continental Crust vs. Oceanic Crust The continental ? crust The continental is found under the crust is thicker ? but landmasses, while the lighter, while the oceanic ? crust is found oceanic crust is under the ocean floor thinner ? but denser or (forms the seabed or heavier. seafloor). How do you compare the densities of the Earth’s crust, mantle, and core? A. The mantle is less dense than the core but denser than the crust. B. The mantle is less dense than both the core and the crust. C. The mantle is denser than the core but less dense than the crust. D. The mantle is denser than both the core and the crust. How do you compare the temperature of the Earth’s crust, mantle, and core? A. The mantle is less hot than the core and the crust. B. The mantle is less hot than both the core and the crust. C. The mantle is hotter than the core but less hot than the crust. D. The mantle is less hot than the core but hotter than the crust. Mechanical Layers 1. Made up of solid iron and nickel. E A) LITHOSPHERE 2. Composed of the crust & uppermost rigid part of the A B) ASTHENOSPHERE mantle. C) MESOSPHERE 3. A very hot layer of the mantle that flows more slowly (more C rigid and immobile) than the D) OUTER CORE asthenosphere. 4. A soft, more fluid & plastic-like layer that flows very B E) INNER CORE slowly. Causes the tectonic plates to move. 5. Made up of liquid iron and nickel. D MECHANICAL LAYERS OF THE EARTH LEARNING CHECK!