EARTH'S LITHOSPHERE. CORE MANTLE AND CRUSTpptx

Discuss the layers of the earth ad kind of crust

1. Earth’s Lithosphere ARNELYN S. LABAO

2. EARTH VS. EGG LAYERS

3. VIDEO PRESENTATION What is oceanic crust? What is continental crust How would you differentiate oceanic crust from continental crust?

4. Quarter 1: Activity No. 1: The Earth’s Crust

5. KINDS OF CRUST CONTINENTAL CRUST- the layer of granitic, sedimentary and metamorphic which form the continents and the areas of shallow seabed close to their shores. OCEANIC CRUST-the part of Earth’s crust that makes up the seafloor.

6. CHARACTERISTICS OCEANIC CRUST CONTINENTAL CRUST THICKNESS 5-10 KM THICK 30-50 KM THICK COMPOSITION MOSTLY BASALT MOSTLY GRANITE DENSITY MORE DENSE LESS DENSE AGE YOUNGER OLDER

7. Basalt Types of igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron. Dark heavy volcanic rock that makes up most of the world’s oceanic crust

8. Granite Is a light-colored plutonic rock found throughout the continental crust, commonly in mountainous areas.

9. Guide Questions 1. How will you differentiate continental crust and oceanic crust in terms of the following: a. thickness b. composition c. density d. age 2. Why do you think the oceanic crust is much denser compared to oceanic crust? 3. Which property do you think causes continental crust to have higher elevation as compared to oceanic crust? Explain your answer. 4. Why do you think that continental crust is much older as compared with the oceanic crust?