First Quarter Exam for Grade 10

DIEGO H PATIGAYON NATIONAL HIGH SCHOOL Mukas, Kolambugan, Lanao del Norte 1st Grading Examination SCIENCE Name: __________________________________ Grade & Section: ______________ Score: ______ I.

Multiple Choice. (Encircle the letter of the correct answer.) 1. When two tectonic plates collide, the oceanic crust usually subducts beneath the continental crust because it is: a. Denser than the continental crust c. thicker than the continental crust b. Less dense than the continental crust d. thinner than the continental crust 2. Which plates/land masses collided and begun the formation of Himalayas? a. Philippines and Eurasia c. Nazca Plate and India b. India and America d. India and Eurasia 3. The average density of the crust is __________. a. 2.8 mg/cm3 b. 2.8 mi/hr c. 2.6 g/cm3 d. 2.8 g/cm3 4. In a hot spot, Volcano A is on top of the mantle plume, Volcano B is 20 km farther from A while Volcano C is the farthest. What is true about the age of the volcanoes? a. Volcano A is older than C c. Volcano B is the youngest b. Volcano B is the oldest d. Volcano B is the younger than C 5. What is the most abundant element in the Earth’s crust? a. Carbon b. Iron c. Silicon d. Oxygen 6. What makes up the Earth’s lithosphere? a. Continental crust c. Crust and Upper Mantle b. Oceanic Crust and Continental Crust d. Upper Mantle 7. The movement of the lithospheric plate is facilitated by a soft, weak and plastic layer. Which of the following layers is described in the statement? a. Asthenosphere b. Atmosphere c. Lithosphere d. Mantle 8. As a new seafloor is formed at the mid-ocean ridge, the farthest from the ridge is destroyed. Which of these processes describes how oceanic crust plunges into the Earth and destroyed at the mantle? a. Convection b. Construction c. Subduction d. Diversion 9. What are the two main types of Seismic Waves? a. Body Wave and Rayleigh Wave c. Surface Wave and Body Wave b. Love Wave and Rayleigh Wave d. Primary Wave and Secondary Wave 10.Who were the two scientists who proposed the theory of Seafloor Spreading? a. Harry Hess and Robert Diets c. Henry Hess and Robert Dietz b. Harry Hess and Robert Dietz d. Alfred Wegener and Charles Darwin 11.The lithospheric plates are said to be moving slowly. What is the driving force that facilitates this movement? a. Gravitational force of the moon c. convection current In the mantle b. Magnetic force at the poles d. the force in the atmosphere 12.Magnetic reversal is also called _____________________. a. Magnetic Field b. Magnetic Spreading c. Magnetic Flop d. Magnetic Flip 13.All of these are findings that support the Seafloor Spreading Theory, EXCEPT; a. Rocks are younger at the mid-ocean ridge. b. Rocks are found with fossils from different organisms that lived in the remote past. c. Rocks far from the mid-ocean ridge are older. d. Rocks at the ocean floor are younger than those at the continents. 14.The Pangaea started to break into two smaller supercontinents during the Jurassic Period. What are the names of these supercontinents? a. Laurasia and Gondwanaland c. Laurasia and Gonwanalan b. Eurasia and Gonwanaland d. Laurasia and Gonwanaland 15.Most of the shaking felt from an earthquake is due to what type of surface wave? a. Primary wave b. Rayleigh Wave c. Body Wave d. Love Wave

II.

Identification. (Identify what/who is described in each statement. Write your answer in the space provided before each number.)

_______________1. He is the German meteorologist who proposed the Continental Drifting Theory. _______________2. These are preserved remains or traces of organisms from the remote past. _______________3. A vibration of Earth due to rapid release of energy ________________4. This is the Japanese term for “harbour wave” and is a series of ocean waves with very long wavelengths caused by large-scale disturbances of the ocean. _______________5. The thinnest and the outermost layer of the Earth that extends from the surface to about 32 kilometers below. _______________6. This deals with the movements that shape the Earth’s crust. _______________7. The name of the supercontinent that consisted of all the present continents _______________8. A concentration of the heat in the mantle capable of creating magma _______________9. A mass of molten rock formed at depth, including dissolved gases and crystals _______________10. The highest mountain in the world with 3154 m III.

Modified True or False (Write True if the statement is correct; if False, change the underlined word to make the statement right.) Write your answer on the space provided for. ____________1. Plate Tectonics give rise to several geologic features and events. ____________2. Primary wave is the second type of Earthquake wave to be recorded in a seismic station. ____________3. P-waves can travel through liquids while S-waves cannot. ____________4. Love waves cause the most damage to structures during an earthquake. ____________5. Coal beds were formed from the compaction and decomposition of swamp plants that lived million years ago. ____________6. The subduction zone serves as the origin of lithospheric movement. ____________7. The outer core is the deepest layer of the Earth. ____________8. The age of rocks and the magnetic stripes in the ocean floor support the Seafloor Spreading Theory. ___________9. Because of the subduction process, a depression on the ocean floor called fault is also formed. ___________10. No trench, no volcano and no island are created during the convergence of 2 continental plates.

IV.

Complete the table below. A Type of Plate Boundary

V.

B Relative Motion of the Plates

C Geologic Features/Events

Essay. Explain briefly and concisely. (You can use an extra sheet of paper.) 1. Is the Earth getting larger and wider when plates drift away from each other? Explain.

2. Differentiate surface waves from body waves.

3. How will you relate the distribution of mountain ranges with the distribution of earthquake epicentres and volcanoes?