Name:
Course Number: Semester: Phys 1417 Physical Science II, Homework #5 Instructions: 1. Type your name, Course number (=PHYS 1417.V01), and Semester (=Summer I, 2013). 2. Type your answers. Include questions. 3. Make sure that all parts of each question are answered. 4. Turn in. Chapter 25 Rocks and Minerals
1. List the 8 elements which make up about 98% of Earth’s entire mass. 2. The most abundant element in the Earth’s interior is __________________ (fill in the blank). The Second most abundant element in the Earth’s interior is __________________ (fill in the blank). 3. The most abundant element in the Earth’s crust is __________________ (fill in the blank). The Second most abundant element in the Earth’s crust is __________________ (fill in the blank). 4. List the 8 elements which make up most of the Earth’s crust. 5. List the Earth’s 3 internal layers in the increasing order of their densities? 6. How did the Earth’s 3 internal layers originate? Where did the heat required for the layers to develop come from? 7. Which of the following physical properties of mineral are strongly affected by the mineral’s chemical composition? By the crystal structure? luster, streak, density, hardness, crystal form, cleavage 8. Define luster, streak, density, hardness, crystal form, cleavage. 9. Differentiate between: a. Silicates and non-silicates. b. Ferromagnesian and Non-ferromagnesian silicates. c. Carbonates and oxides. 10. Which are the most abundant minerals in the crust, silicates or nonsilicates? 11. What type of rocks form when magma or lava undergoes cooling and crystallization? 12. List the three types of magma/lava in increasing order of their viscosity. 13. The most common rocks on the continent are ____________ (fill in the blank). The most common rocks on the ocean floor are ____________ (fill in the blank). 14. What is the difference between intrusive and extrusive rocks? 15. What are batholiths? 16.