Science Grade 4 Quarter 4 Module 3 PDF

4 Science Quarter 4 – Module 3: The Importance of Water Cycle CO_Q4_Science 4_ Module 3 Science – Grade 4 Alternative Delivery Mode Quarter 4 – Module 3: The Importance of Water Cycle First Edition, 2020 Republic Act 8293, section 176 states that: No copy...

4 Science Quarter 4 – Module 3: The Importance of Water Cycle CO_Q4_Science 4_ Module 3 Science – Grade 4 Alternative Delivery Mode Quarter 4 – Module 3: The Importance of Water Cycle First Edition, 2020 Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties. Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them. Published by the Department of Education Secretary: Leonor Magtolis Briones Undersecretary: Diosdado M. San Antonio Development Team of the Module Writer: Michimelda G. Halili Editors: Noel V. Ibis, Christian M. Espiritu Reviewer: Chozara P. Duroy Illustrator: Jotham D. Balonzo Layout Artists: Jogene Alilly C. San Juan, Jacqueline E. Libut Management Team: Gilbert T. Sadsad Francisco B. Bulalacao Jr. Grace U. Rabelas Ma. Leilani R. Lorico Emma T. Soriano Ellen G. De la Cruz Amy B. Dumail Printed in the Philippines ________________________________ Department of Education – Region V Office Address: Regional Center Site, Rawis, Legazpi City 4500 Telefax: (033) 336-2816, (033) 509-7653 E-mail Address: [email protected]  4 Science Quarter 4 – Module 3: “The Importance of Water Cycle” Introductory Message This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson. Each SLM is composed of different parts. Each part shall guide you step-by- step as you discover and understand the lesson prepared for you. Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these. In addition to the material in the main text, Notes to the Teacher are also provided to our facilitators and parents for strategies and reminders on how they can best help you on your home-based learning. Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task. If you have any questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator. Thank you.  What I Need to Know This module gives you information on the importance of water cycle in the environment. You will be given enough activities to master all the learning objectives in this module. Enjoy all the exercises allotted for you. Have a wonderful experience and enjoy the moment as you explore this module just for you. The module will focus on:  Lesson 1 – The Importance of Water Cycle (S4ES-IVc-3) After going through this module, you are expected to be able to: 1. explain the processes of the water cycle; and 2. describe the importance of the water cycle. What I Know A. Directions: Choose the phrases from the box that describe the pictures shown below. Write your answer in your science notebook. improved hygiene practices increased water storage healthy animal growth increased crop yield healthy plant growth 1. 2. 1 CO_Q4_Science 4_ Module 3  3. 4. 5. Illustrated by: Jotham D. Balonzo B. Directions: Write True in the space provided if the statement is correct and write False if it is not. Do it in your science notebook. ________1. Snow is a precipitate. ________2. Clouds are signs of weather. ________3. Water vapor gathers in the hydrosphere. ________4. Hydrosphere is the water part of the Earth. ________5. Evaporation happens when water is heated. ________6. Plants and animals are not part of the water cycle. ________7. Plants can still survive even in the absence of water cycle. ________8.The water sphere or hydrosphere covers three-fourths of the Earth’s surface. ________9.In the presence of water cycle, there could be a decrease in crop yield. _______10. Water cycle is a continuous movement of water between the Earth’s surface and atmosphere. How well did you perform the activity? 11 – 15 6 – 10 0-5 2 CO_Q4_Science 4_ Module 3  Lesson The Importance 1 of Water Cycle In the previous lesson, you have learned the different sources and uses of water. You have also learned the importance of water in our daily life activities. We all know that water is a very important resource in our day to day lives. But before water reaches your homes to be used for many purposes, do you really know the processes behind it? This is the question that you are going to answer as you perform the activities and learn from this module. What’s In Directions: Draw a happy face ( ) if the sentence is correct and sad face ( ) if it is not. Do it in your science notebook. _____1. Water is a renewable resource which we can use daily. _____2. Freshwater in rivers, lakes and springs is not for recreation. _____3. Water is a great help for plants, animals, and man to survive. _____4. Groundwater is an important component in many industrial processes. _____5. Seawater is used for drinking, cleaning, washing, bathing, and other household uses. 3 CO_Q4_Science 4_ Module 3  What's New Note to Parent/Guardian: Guide your children while they are doing the various activities in this module. To the Learner: Activity 1: “How Important Am I in the Environment?” Directions: Study the illustration below and answer the questions that following your science notebook. Guide Questions: Illustrated by: Jotham D. Balonzo 1. What is the illustration about? 2. What are the processes involved in the water cycle? List and try to describe them. You may think about the changes that happen to water as it transforms into different states of matter (solid, liquid and gas). 3. What do you think is the role of the Sun in the water cycle? 4. What do you think is water cycle as shown? Describe it by using your answers in questions No.2 and No. 3. 4 CO_Q4_Science 4_ Module 3  Activity 2: Fill Me Out Directions: Describe the importance of water cycle to each of the items in the table. Do it in your science notebook. HUMAN PLANTS ANIMALS ENVIRONMENT Guide Questions: 1. What do you think will happen if we run out of water? 2. What other things will be affected if there is no water? What is It Points to Remember:  The water part of the Earth is called hydrosphere or “water sphere”. This covers about three-fourths of its surface.  Water cycle is a continuous process of changing liquid water into water vapor (gas) when heated and turns back to liquid water when cooled above and below the surface of the Earth. Water is transferred from the Earth’s surface to the atmosphere through evaporation. Bodies of water, clouds, evaporation, and condensation including living things all play important roles in the water cycle.  The Sun plays a major role in the water cycle. It is the main source of heat that causes evaporation process. Processes involved in water cycle: 1. Evaporation - is the process of changing liquid water into water vapor (gas) and rises into the atmosphere. Roughly 80% of all evaporation comes from oceans while the remaining 5 CO_Q4_Science 4_ Module 3  20% comes from inland water and plant vegetation. More evaporation happens when the temperature is high and with faster wind speed. 2. Transpiration – takes place during evaporation process wherein water particles are released from the leaves of the plants and vegetation. The rate of transpiration gets higher with higher temperatures.  Respiration - takes place when animals and humans breathe out water particles through their lungs and when they perspire, which evaporates into the atmosphere in lesser amounts. Animals contribute to the water cycle through respiration, perspiration and urination. 3. Condensation - is the process of changing water vapor (gas) into tiny droplets of liquid water in the form of clouds in the atmosphere. Condensation can be high in the atmosphere or at ground level. Water vapor condenses around tiny particles called cloud condensation nuclei (CCN). The cloud condensation nuclei can sometimes be specks of dust, salt, or pollutants. As tiny water droplets combine with each other, clouds develop, and precipitation may occur. 4. Precipitation - is the process by which the tiny condensed water droplets falls back into the Earth’s surface in the form of rain, hail, snow and sleet. Although there is a continuous cycle of water, you might wonder if there will come a time when we will run out of water. Did you know that 97% of the water found in our surrounding is salty? Thus only 3% of this water is fresh or potable. This very small amount of freshwater is 67% locked in the form of ice mainly found in Greenland and Antarctic. Therefore, only about 1% of freshwater is found in rivers, lakes, ponds, and in the atmosphere in the form of water vapor. 6 CO_Q4_Science 4_ Module 3  The Water Cycle Illustrated by: Jotham D. Balonzo Water cycle is important because it transforms salty water into fresh water during precipitation process. It is also known as hydrologic cycle describes how water evaporates from the surface of the Earth, rises into the atmosphere, cools and condenses into clouds, and falls again to the Earth’s surface as precipitation in the form of rain, snow, hail or sleet. The water falling on land collects in rivers and lakes, soil, and porous layers of rock, and much of it flows back into the oceans, where it will once more evaporates. The cycling of water in and out of the atmosphere is a significant aspect of the weather patterns on Earth. Importance of Water Cycle Human  Continuous water supply for human consumption and industrial use  Improves health and hygiene practices Animal  Healthy animal growth  Continuous supply of fresh water Plants  Healthy plant growth  Increase production or yield crops  Continuous supply of fresh water Environment  Purifies water by eliminating pollutants  Distributes water all over the Earth’s surface  Continuous supply of fresh water  Increase water storage as ground water 7 CO_Q4_Science 4_ Module 3  What’s More A. Directions: Choose from the box below the processes in the water cycle being described in each statement. Write your answer in your science notebook. transpiration respiration evaporation condensation precipitation ____________1. The process by which plants release water from their leaves. ____________2.The process by which the condensed water vapor falls back into the Earth’s surface in the form of rain, hail, snow and sleet. ____________3. The process of changing water vapor (gas) into tiny droplets of liquid water in the atmosphere. ____________4. The process of changing liquid water into water vapor (gas), which comes from bodies of water and living things. ____________5. The process by which human and animals breathe out water particles through their lungs and when they perspire. B. Directions: Using the diagram below, identify and explain the processes involved in the water cycle. Write it in your science notebook. Illustrated by: Jotham D. Balonzo 8 CO_Q4_Science 4_ Module 3 C. Directions: Complete the table by choosing the phrases inside the box that best describes the importance of water cycle.  plants growing healthy  healthy people  lack of water supply  low quality products  abundant supply of water  growing population of animals  low market prices of vegetables and fruits HUMAN PLANTS ANIMALS ENVIRONMENT What I Have Learned Directions: Complete the diagram of a water cycle below with the correct word. Write your answers in your science notebook. Illustrated by: Jotham D. Balonzo Superb! You did well in these exercises. 9 CO_Q4_Science 4_ Module 3  What I Can Do Directions: In your science notebook, briefly explain what you think or understand about each situation which relates to the processes in the water cycle. 1. Your father is a salt maker. He goes to work at the beach everyday especially during summer. During rainy season, he stops working. Why could he not make salt during rainy days? 2. You live in the community where most of the people earn a living through farming vegetables and fruits. One day, you noticed that some of the plants are withered and wilted. Why? What an extra special work! Keep on going as you are nearing the finish line. Assessment A. Directions: Briefly explain the processes involved in the water cycle. Write your answer in your science notebook. 1. Evaporation – _________________________________ 2. Condensation – _________________________________ 3. Precipitation – _________________________________ 4. Transpiration – _________________________________ 5. Respiration – _________________________________ 10 CO_Q4_Science 4_ Module 3 B. Directions Put a check mark (√) if it shows importance of water cycle and cross mark (x) if it shows effects of the absence of water cycle. ___1. increased crop yield ___2. withered plants ___3. increased water storage ___4. healthy animal and plant growth ___5. water shortage ___6. less sickness in people C. Directions: Describe the importance of water cycle to human, plants, animals, and environment by filling out the concept map below. Do it in your science notebook. Yahoo! You’ve made a progress. 11 CO_Q4_Science 4_ Module 3  Additional Activities Directions: In your science notebook, draw the water cycle and explain the processes involved using your own words. Give some examples which show the importance of water cycle to man, plants, and animals. Excellent! You’ve made it. You are now ready to go to the next module. 12 CO_Q4_Science 4_ Module 3 Answer Key 13 CO_Q4_Science 4_ Module 3 14 CO_Q4_Science 4_ Module 3 References Abutay, Lelani R., et. al. Science 4 Learner’s Material, 267-269. Pasig City: Department of Education, 2015. Abutay, Lelani R., et. al., Science 4 Teacher’s Guide, 305-309. Pasig City: Department of Education, 2015. 15 CO_Q4_Science 4_ Module 3 For inquiries or feedback, please write or call: Department of Education - Bureau of Learning Resources (DepEd-BLR) Ground Floor, Bonifacio Bldg., DepEd Complex Meralco Avenue, Pasig City, Philippines 1600 Telefax: (632) 8634-1072; 8634-1054; 8631-4985 Email Address: [email protected] * [email protected]