BELMOPAN COMPREHENSIVE SCHOOL FIRST FORM Integrated Science Exam Semester 2 January – June 2019 Allotted time: 1 ½ hours Read the following instructions carefully: 1. This exam is divided into five sections: I. II. III. IV. V. MULTIPLE-CHOICE (50 items) TRUE or FLASE (5 items) FILL IN THE BLANKS (5 items) MATCHING: (10 items) STRUCTURE QUESTIONS: (1 item) TOTAL ATTAINABLE POINTS = (50 points) (10 points) (10 points) (10 points) (20 points) 100 points 2. Write your name and the date on your answer sheet. 3. On the space provided on the Answer Sheet, all answers should be marked as indicated by the instructions. 4. Turn this page ONLY UNTIL TOLD TO DO SO! Good Luck!! SECTION 1: Multiple- Choice (50 items, 1 point each) INSTRUCTIONS: Read each question carefully and then select the letter with the most appropriate option. Shade the corresponding letter on the space provided on the answer sheet. 1. What causes water molecules to adhere/creep up the measuring cylinder at the meniscus? a. Capillary action b. Cohesion c. Transpiration d. Polarity 2. Water is made up which two elements? a. Hydrogen electrons b. Proton and neutrons c. Oxygen and nitrogen d. Oxygen and hydrogen 3. Tremors that have occurred on Earth's crust are known as: a. Volcanic eruptions b. Earthquakes c. Bed eruptions d. Volcano-Earth Quake 4. Which of the following is NOT one of water’s properties? a. High specific heat b. High surface tension c. High heat of vaporization d. High density as a solid (ice) 5. All of the following statements are true about water EXCEPT: a. More than 60% of the human body is made up of water b. Water molecules are able to display adhesion and cohesion c. Ice has a lower density than liquid water d. Water is a non-polar molecule 6. The high heat capacity of water allows it to: a. Form additional hydrogen bonds b. Absorb large amounts of heat energy before the temperature of water changes c. Boil at lower temperatures than other liquids d. None of the above 7. Fish are safe in water, even in freezing temperatures, due to which property of water? a. Ice is less dense compared to liquid water b. Surface tension c. Capillary action d. Ice is more dense compared to liquid water 8. The type of bonds formed between water molecules are called: a. Covalent bond b. Polar bond c. Ionic bond d. Hydrogen bond 9. What is the name of the process by which plants lose water? a. Perspiration b. Transpiration c. Condensation d. Precipitation 10. During evaporation water is converted to a: a. Solid b. Liquid c. Gas d. Plasma 11. Water falling from clouds is known as: a. Evaporation b. Precipitation c. Transpiration d. Condensation e. 12. Clouds are formed through the process of: a. Condensation b. Evaporation c. Sublimation d. Transpiration 13. The process by which water enters the ground is known as: a. Condensation b. Infiltration c. Surface run-off d. Transpiration 14. Which of the following is the correct order of the water cycle? a. b. c. d. Evaporation run-off condensation evaporation Precipitation run-off evaporation condensation Condensation evaporation run-off precipitation Evaporation precipitation condensation run-off 15. A mosquito can skate along the top of a pond because of: a. Adhesion b. High specific heat c. Surface tension d. Capillary action 16. What abiotic factor kick-starts the water cycle by providing a heat source? a. Moon b. Sun c. Stars d. Clouds 1|P a g e B.C.S 1st Form Integrated Science Exam – JUNE 2019 Teachers: Mrs. Tummala, Ms. Muschamp, Mrs. Barrientos, Ms. Gonzalez, Mrs. Jones 17. The water cycle is the earth’s way of: a. Recycling water b. Getting rid of water c. Using up all of our water d. Cleaning our environment 18. Amy notices a puddle of water in his front yard. The next day the puddle is gone. What most likely happened to the puddle of water? It _____________. a. Melted b. Precipitated c. Condensed d. Evaporated 25. The release of magma from a volcano is called a /an ____________. a. Epicenter b. Earthquake c. Eruption d. Hotspot 26. The instrument used to measure an earthquake is known as a: a. quake meter b. quake graph c. seismograph d. tympanic graph 19. What is Eutrophication? a. Nuclear waste b. Toxic chemicals and pesticides c. Excess nutrients in body of water that causes dense growth of aquatic plants d. The purification of water 27. Exit points on a volcano for the release of magma are called ___________. a. exits b. hotspots c. chambers d. vents 20. All of the following are causes of water pollution EXCEPT: a. Use of toxic chemicals and fertilizers b. Oil spills c. Improper sewage disposal d. Recycling of plastics 28. What is the name of the scale that measures the intensity of volcanic eruptions? a. Mercalli scale b. VEI scale c. Eruption scale d. Richter scale 21. The instrument used to study wind speed is called________. a. wind vane b. anemometer c. hygrometer d. barometer 22. A _______is a huge wave caused by an underground earthquake or volcano eruption. a. flash flood b. tornado c. tsunami d. flooding 23. Climate is: a. Pattern of weather over a long period of time b. The weather report for the day c. The changing of weather throughout the day d. The weather report for the previous years 24. Where do hurricanes form? a. Over warm ocean water b. Over mountain ranges c. In the desert d. Over open fields 29. Temperature can be measured as: a. degree Celsius b. degree Fahrenheit c. percentage d. both a and b 30. All of the following are types of clouds EXCEPT. a. Stratus clouds b. Cirrus clouds c. Stevenson clouds d. Cumulus clouds 31. Atmospheric pressure is: a. The amount of cloud cover in the atmosphere b. The amount of water vapour in the atmosphere c. The force on a surface by the weight of the air above it d. The amount of sunlight in the atmosphere 32. What types of equipment would a meteorologist use to measure weather? a. b. c. d. wind vane meter ruler barometer both a and c 2|P a g e B.C.S 1st Form Integrated Science Exam – JUNE 2019 Teachers: Mrs. Tummala, Ms. Muschamp, Mrs. Barrientos, Ms. Gonzalez, Mrs. Jones 33. The group of stars forming a recognizable pattern is known as a/an: a. b. c. d. Constellations Celestial bodies Asteroids Comet 34. Climate determines: a. b. c. d. The plants that are able to grow The animals that live in the area Both A and B None of the above 35. The following planet is considered as Earth’s sister planet: a. b. c. d. Mars Mercury Venus Saturn 36. Which of the following planet is known as the ‘blue planet’? a. b. c. d. Mars Mercury Venus Earth 37. Plants are ___________________. a. b. c. d. Producers Primary Consumers Secondary Consumers Tertiary Consumers 39. One example of a carnivore is the ________. a. b. c. d. Slug Plant Frog snake 40. The sun is necessary to life in all ecosystems on Earth. What does the sun provide that all organisms depend upon to sustain life? a. b. c. d. A natural time of day system Heat and light for living things Dry weather None of these 41. An organism that uses energy to produce its own food supply from inorganic compounds is called a(an): a. b. c. d. Heterotroph Consumer Detritivore Autotroph 42. The arrows of a food chain indicate? a. Which animal eat the next b. The direction of the bigger organism c. The flow of energy through the food chain. d. None of these 43. The diagram below shows a/an __________ ecosystem. Use the food web below to answer questions 39-41. a. b. c. d. Marine Ecosystem Mangrove Forest Tropical rainforest Savannah 44. One way in which humans harm our ecosystems is? a. b. c. d. 38. One herbivore seen in the food web is the __________. a. b. c. d. Fox Frog Rabbit Fish Deforestation Reforestation Conserving water Protecting endangered species 45. Deserts consists of mainly: a. b. c. d. sand gravels (pebbles and cobbles) exposed bedrock vegetation 3|P a g e B.C.S 1st Form Integrated Science Exam – JUNE 2019 Teachers: Mrs. Tummala, Ms. Muschamp, Mrs. Barrientos, Ms. Gonzalez, Mrs. Jones 46. Which of the following is considered a ‘dwarf planet’? a. b. c. d. Saturn Jupiter Mars Pluto 47. Savannahs consists of mainly: a. b. c. d. Sand Gravels (pebbles and cobbles) Exposed bedrock None of these 48. Which of the following is considered an abiotic factor? a. b. c. d. Algae Animals Trees Carbon Dioxide 49. An example of a competitive or invasive species recently introduced to the marine environment in Belize is the _______________. a. Nurse Shark b. Lion fish c. Howler monkey d. Jaguar 50. All of the following are ways to conserve our natural resources EXCEPT? a. Limit deforestation b. Recycle metal and paper c. Use of alternative energy sources d. Over fishing SECTION 2: True or False (5 items, 2 points each) INSTRUCTIONS: On the space provided on the answer sheet, shade True if the statement is correct or False if the statement is incorrect. 1. Weather refers to the amount of rain that falls in an area. 2. Humidity is the amount of water vapor present in the air and is measured using a hygrometer. 3. The Kelvin unit is the Standard International unit of measurement for pressure. 4. The Saffir-Simpson scale is used to measure the strength of a hurricane. 5. The solid red flag with two black dots indicates that a hurricane may threaten within 24 hours. SECTION 3: Fill-in the Blanks (5 items, 2 points each) INSTRUCTIONS: On the space provided on the answer sheet, write the term that best fits each statement. Hint: Some words may not be used any at all! Native Erosion Humus terracing Recycling Extinct Endemic Minerals weathering Howler monkey Reforestation Hicatee lionfish Horizon 1. Each layer in a soil profile is called a _____________________. 2. ______________ is mostly found in the O horizon. 3. Endemic species are animals and plants that are _______________ to the specific area. 4|P a g e B.C.S 1st Form Integrated Science Exam – JUNE 2019 Teachers: Mrs. Tummala, Ms. Muschamp, Mrs. Barrientos, Ms. Gonzalez, Mrs. Jones 4. An example of an invasive species is the _______________________. 5. It is important to protect our animals to prevent them from becoming _________________. SECTION 4: Matching (10 items, 1 point each) INSTRUCTIONS: : On the space provided on the answer sheet, write the LETTER of the definition in column B that best matches the respective term in column A. (Hint: some definitions may not be used at all) Column A Column B_________________ A. This property is due to the high amount of heat needed for water to evaporate 1. High heat of vaporization 2. High surface tension 3. Cohesion B. This soil is pale in colour, has high drainage and large particles. C. Hydrogen bonds resist stretching or breaking the surface, giving water this property. 4. Loam soil 5. Soil degradation 6. Hydrophobic D. Water has a slightly negative end and a slightly positive end, making it the universal solvent. E. “water-fearing”, these are molecules that are insoluble in water. 7. Mechanical weathering 8. Clay soil F. This soil has the highest water-holding capacity, poor drainage and very little aeriation. 9. High polarity G. Water molecules sticking to each other. 10. Sandy soil H. A decline in the soil’s health status. I. The breakdown of rocks by wind, water, ice and temperature changes. J. This soil has very good water-holding capacity, good drainage and good aeriation. K. Water molecules sticking to other surfaces SECTION 5: Structure Question (1 item, 20 points) INSTRUCTIONS: On the space provided on the answer sheet, answer the following question to the best of your abilities. Check your grammar and spelling before submitting your paper. 1. WATER CYCLE (20 POINTS) a. Label the diagram above on the lines provided on the answer sheet. (2 points each-12 Pts total) b. Briefly explain what happens at A. (4 points) c. Give TWO forms of C. (4 points) The END!!! TOTAL 20 POINTS 5|P a g e B.C.S 1st Form Integrated Science Exam – JUNE 2019 Teachers: Mrs. Tummala, Ms. Muschamp, Mrs. Barrientos, Ms. Gonzalez, Mrs. Jones