Transcript Article 3
Nov 20 Warm-up Imagine yourself taking a trip to the center of the Earth. In a paragraph, describe what you would see and feel during your journey. Nov 2 Warm-up Explain what makes the inner core solid and the outer core liquid. Oct 20 Earth’s Interior SC.A.1.3.1 – I will know ways that materials are different from one another. DCPS 26 - Compare and contrast the layers of the Earth Learning Goal: I will explain the differences between the layers of the Earth. Earth’s Interior The Earth’s Interior consists of ?3 layers. CRUST - MANTLE - CORE Earth’s Interior Layer Depth Temp Description 3 – 25 miles Up to 230° F Solid rock, covered with land and oceans. Crust Earth’s Interior Layer Crust Depth 3 – 25 miles Temp Description Up to 230° F Solid rock, covered with land and oceans. 2 types of Crust: Continental crust * under the land * made of granite rock Earth’s Interior Layer Crust Depth 3 – 25 miles Temp Description Up to 230° F Solid rock, covered with land and oceans. 2 types of Crust: Continental crust * under the land * thick * made of granite rock Earth’s Interior Layer Depth Temp Crust 3 – 25 miles Up to 230° F Description Solid rock, covered with land and oceans. Oceanic crust * under the ocean * made of basalt rock Earth’s Interior Layer Depth Temp Mantle Goes From down to 230° to 1,800 4400° F miles Description Made of rock material Lithosphere * top part (25 - 60 miles) * solid rock * combines with the crust Earth’s Interior Layer Depth Temp Mantle Goes From down to 230° to 1,800 4400° F miles Description Made of rock material Lithosphere - top part - solid rock - combines with the crust Earth’s Interior Layer Depth Temp Description Made of rock material Mantle Goes From down to 230° to Asthenosphere 1,800 4400° F * below the lithosphere miles * 60-120 miles below the Earth’s surface *hot, melted rock (magma) Layer Earth’s Interior Depth Temp Description Core Goes 4,400 to down to 10,000°F 3,900 As hot miles as the sun Made of metal: nickel and iron. Outer core * 1,800-3,100 miles below Earth’s surface * thick, liquid metal Layer Earth’s Interior Depth Temp Description Core Goes up to down to 10,000°F 3,900 As hot miles as the sun Inner core *3,100-3900 miles below Earth’s surface *solid ball of metal *very high pressure 3 – 25 miles Asthenosphere Deep Mantle Outer core Inner core 25 – 60 miles 60 – 120 miles 120 – 1800 miles 1800 – 3100 miles 3100 – 3900 miles Important to know !!! Temperature and pressure increase as you travel to the center of the Earth. Earth’s Interior Let’s see what we know! Depth 10 miles 50 miles 110 miles 2,500 miles 3,700 miles Name of Layer Crust Lithosphere Asthenosphere Outer Core Inner Core Describe this layer Hard, solid rock Hard, solid rock Hot, melted rock Melted metal Solid metal ball Let’s compare the Earth’s layers with the layers of an apple. Nov 21 Warm-up If scientists cannot get deep down inside Earth’s interior, explain how you believe scientists know what the inside of the Earth is like. How do Scientists know what the inside of the Earth is like? Direct evidence Indirect Evidence Scientists use seismic waves – vibrations that travel through the inside of the Earth – to investigate what the inside of the Earth is like. Geology - the study of the Earth’s interior (inside) and surface. Geologist - Scientist who studies the Earth’s surface and interior. Review 1. What is the study of the Earth called? 2. What are the scientists who study the Earth’s interior and surface called? 3. How do geologists know what the inside of the Earth is like? 4. How does temperature and pressure change as you travel inside the Earth? 5. How many layers of the Earth are there? Review 6. What is the top layer of the Earth? 7. What are the 2 types of crust? 8. What is the middle layer of the Earth? 9. What is the top part of the mantle? 10. What is the inside layer of the Earth? Wrap-up Quick Write: Do you believe scientists will ever be able to drill down into the Earth’s core? Justify your answer.