G7 Science 1st Q LT 1.2. (SET B) Mechanisms Within the Earth PDF

UNIVERSITY OF SANTO TOMAS JUNIOR HIGH SCHOOL SCIENCE LEARNING AREA School Year 2024 – 2025 GRADE 7 SCIENCE LONG TEST 1.2. (SET B)...

UNIVERSITY OF SANTO TOMAS JUNIOR HIGH SCHOOL SCIENCE LEARNING AREA School Year 2024 – 2025 GRADE 7 SCIENCE LONG TEST 1.2. (SET B) MECHANISMS WITHIN THE EARTH Class No. Name Teacher Section Date GENERAL DIRECTIONS: 1. This test consists of 7 pages of a questionnaire. 2. It contains 35 items of multiple choice and 1 item for creative question. 3. Fill out the spaces with your name, section, class number, date and your teacher’s name on both questionnaire and answer sheet. 4. Read and follow the direction for each part of the test carefully. 5. All answers must be written on the answer sheet provided. 6. AVOID ERASURES in all forms – superimposition, use of brackets, parentheses, arrows, etc. on your answer sheet. 7. No one is allowed to borrow or lend any materials during the examination. 8. Ask the guidance of the HOLY SPIRIT before you begin. PART I - MULTIPLE CHOICE Read and understand the statements in each of the following questions. 1. What is one of the bases of scientists in 3. Study the illustration below. Which of the understanding the physical properties of following statements is TRUE about the various depths of the Earth's layers? propagation of seismic waves in the A. studies conducted by geologists Earth’s internal structures? B. theories related to plate movement C. composition of the layers of the earth D. changes in the speed of seismic waves 2. The illustration below shows the movement of seismic waves within the Earth. Which of the following correctly describes the propagation of the seismic wave? A. Primary waves only travel in the Earth’s mantle. B. Secondary waves are the fastest seismic waves. C. Primary waves travel in solid and liquid A. The wave propagates fast. layers of the Earth. B. The wave propagates slowly. D. Primary and secondary waves travel in C. The wave propagates side to side. different directions within the Earth’s D. The wave propagates up and down. layers. Page 1 of 7 4. What is the difference between primary 9. According to an article released by and secondary waves? National Geographic Education, the A. The P wave is faster compared to the S Earth's outermost layer consists of wave. landforms, bodies of water, and all known B. The P wave travels only in the inner life in the universe. Which of the following core, while the S wave travels both in layers pertain to these characteristics? the mantle and core. A. Core C. The P wave travels only in solids, while B. Crust the S wave travels in solids and liquids. C. Mantle D. P waves cause particles to move D. Asthenosphere perpendicular to the direction the wave travels, while S waves cause particles For item numbers 10 to 11, refer to the table to move back and forth in the same below. direction as the wave travels. The table shows how fast the seismic wave travels in each layer of the Earth. For items number 5 to 7, refer to the illustration below. 5. Which of the following describes A? 10. What is the composition of layer B? A. solid, rigid, and brittle A. solid B. liquid, hot, and metallic B. liquid C. liquid, hottest, and denser C. semi-solid D. semi-molten, hot, and plastic-like D. both liquid and solid 11. Let us imagine that layer A is solid. What is 6. Which of the following is the characteristic layer A? of B that allows the mantle convection to A. asthenosphere happen? B. crust A. hot, solid, and plastic-like C. core B. hot, liquid, and plastic-like D. lithosphere C. hot, gaseous, and plastic-like D. hot, semi-molten, and plastic-like For item numbers 12 to 15, refer to the illustration below. 7. Which of the following BEST shows the layers contained by A and B? A. A: upper mantle; B: crust and upper mantle B. A: crust and upper mantle; B: upper mantle C. A: upper and lower mantle; B: outer and inner core D. A: outer and inner core; B: upper and 12. Based on the model of the layers of the lower mantle Earth, what is the importance of layer C? A. It contains solid nickel and iron. 8. Which of the following minerals are the B. It causes the active volcanoes to erupt. most abundant in continental crust? C. It is the site of convection currents that A. silicate and aluminum allow plates to move. B. silicate and magnesium D. It generates magnetic fields that protect C. silicate and carbon dioxide the Earth from solar radiation. D. silicate and nitrogen peroxide Page 2 of 7 13. Which of the following is TRUE about B? A. The continental crust contains granitic A. It is the coldest layer of the Earth. rocks, less dense than basalts, which B. It generates Earth’s Magnetic Field. can be found in the oceanic crust. C. It occupies the majority of Earth’s B. Continental crust contains basalts volume. which are less dense than granitic D. It has two types which are continental rocks that can be found in oceanic and oceanic. crust. C. Continental crust contains iron and 14. What is the correct arrangement for nickel which are less dense than decreasing temperature of the Earth’s basalts that can be found in oceanic interior? crust. A. D, C, B, and A D. Continental crust contains basalts B. C. D. B. and A which are less dense than iron and C. A, B, C, and D nickel that can be found in oceanic D. D, B, C, and A crust. 15. Which of the following is TRUE about B 19. What evidence supports the theory that the and A? current continents were once part of a A. B is liquid and A is solid. single supercontinent millions of years B. B is solid and A is liquid. ago? C. B is hotter and A is colder. A. The discovery of diamonds and gold D. B is more dense and A is less dense. deposits on multiple continents B. The existence of deep ocean trenches 16. Study the map below. Where are active along the edges of some continents volcanoes and earthquakes typically C. The presence of similar plant and located? animal fossils on different continents today D. The similar shapes of the coastlines of continents across the Atlantic and Indian Oceans For item numbers 20 to 21, refer to the illustration below. A. spread out evenly B. gathered in one specific area C. along the edges of tectonic plates D. randomly concentrated in the middle of each plate 17. Which of the following pieces of evidence best supports the existence of a supercontinent called Pangaea? A. The varying climates found on different continents today B. The differences in soil composition across various continents 20. Where do slab-pull and ridge push C. The presence of mountain ranges that happen? are only found on one continent A. Slab pull and ridge push do not affect D. The distribution of similar fossils, such the subduction zone and mid-ocean as those of the Mesosaurus, across ridge. continents that are now separated by B. Slab pull happens along the outer core oceans and ridge push happens along the inner core. 18. Which of the following is the reason why C. Slab pull happens along the subduction continental crust is less dense than zone and ridge push happens along the oceanic crust? mid-ocean ridge. Page 3 of 7  D. Slab pull happens along the mid-ocean ridge and ridge push happens along the subduction zone. 21. Which of the following is the reason why mantle convection occurs within the Earth? A. because there is a similarity in the rock content between upper and lower mantle B. because there is a difference in the 24. A subducts under the B. Which of the temperature between upper and lower following is the reason why this happens? mantle A. because A is hotter than B C. because there is a difference in the B. because A is colder than B rock content between upper and lower C. because A is denser than B mantle D. because A is less dense than B D. because there is a similarity in the temperature between upper and lower 25. Which of the following BEST describes the mantle process between A and B shown in the illustration below? 22. How does modern technology help A. A pushes B upward. Filipinos understand the movements of the B. A transforms into B over time. Philippine Sea Plate, making them the C. A melts and rises above B. ultimate tectonic detectives? D. A sinks beneath B due to its denser A. It allows scientists to use drones to fly nature. over volcanoes and take selfies with them! 26. Based on the illustration, what is indicated B. It provides real-time data on ground by a downward arrow at a trench? movements, helping communities A. A denser tectonic plate lies above a prepare for earthquakes and volcanic less dense plate. eruptions. B. A less dense tectonic plate lies below a C. It creates virtual reality games where denser plate. players can simulate tectonic shifts C. A denser tectonic plate moves below a while sipping coconut water! less dense plate. D. It uses magic crystals to predict the D. A less dense tectonic plate moves future of tectonic activity, because who below a denser plate. doesn’t love a good crystal ball? 27. Which of the following modern scientific 23. Based on the illustration, what is the processes is most effective in tracking and movement of the tectonic plates? understanding tectonic plate movements? A. Oceanography, it measures plate movements by tracking wave heights. B. WiFi (Wireless Fidelity), it creates colorful maps of ground shifts using radar technology. C. Meteorology, it predicts earthquakes based on rain patterns. A. Plates crashing together. D. GPS (Global Positioning System) - it B. Plates sliding beside each other. tracks ground displacement with C. Plates moving beneath each other. pinpoint accuracy. D. Plates moving apart from each other. For item numbers 28 - 31, refer to the For item numbers 24 to 26, refer to the illustration below. illustration below. Page 4 of 7  C. It moves the material in a circular motion, similar to how ocean currents circulate around the globe. D. It transports new material from the center of the ridge outward, while older material is gradually pushed away, similar to how foods move along a conveyor belt. 33. What is the function of mantle convection in the movement of the tectonic plates across the Earth's surface? 28. The diagram above shows plate A. It generates heat that causes the plates movements. What type of plate boundary to melt and flow. exists between sections B and C in the B. It forms earthquakes that propel the illustration? plates in various directions. A. divergent plate boundary C. It creates strong winds that push the B. continental-continental convergent plates in different directions. boundary D. It produces currents that drag the C. oceanic-continental convergent plates along the Earth's surface. boundary D. transform fault boundary 34. The UST Main Building is a landmark in the Philippines, known for being the first 29. What is happening between A and B? earthquake-resistant building in the A. crustal integrating country. In SDG 9: Industry, Innovation, B. crust subducting and Infrastructure, this innovative design is C. lateral sliding especially important because the D. seafloor spreading Philippines sits near a zone where A. two continental plates are colliding, 30. What earth’s geologic feature will be causing frequent earthquakes. created between B and C? B. a large meteor impact caused a A. mountains massive earthquake and tsunami. B. trench C. the Earth's crust is stretching and C. ridge thinning, resulting in volcanic activity. D. tsunami D. an oceanic plate is sliding under a continental plate, leading to volcanic 31. Based on the map, what is happening eruptions and earthquakes. between A and B? A. The plates are moving apart. 35. Which of the following explains how the B. The plates are sliding past one another. convergence of tectonic plates led to the C. The plates are moving toward each formation of the Andes mountains? other. A. The divergence of the Nazca and South D. The plates are moving in a America plates caused the uplifting of synchronized manner. the Andes mountains. B. The transform motion between the 32. You are a geologist studying the Nazca and South American plates movements of tectonic plates in the Pacific pushed up the Andes mountains. Ring of Fire. How would you explain the C. The hot spot activity beneath South process of seafloor spreading in terms of a America caused the rapid growth and conveyor belt? elevation of Mount Everest. A. It represents the sinking of old crust D. The subduction of the Nazca plate into the mantle at subduction zones. beneath the South American plate B. It illustrates how tectonic plates move resulted in the compression and uplift independently without affecting each that formed the Andes mountain. other. Page 5 of 7  PART II: CREATIVE QUESTION Instructions: Using the concepts that you learned about the mechanisms of the Earth, what are the two plates talking about? Write their conversations in the bubble box and provide a brief explanation in the space provided. Explanation: _____________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Page 6 of 7