SEPARATING MIXTURES: EVAPORATION AND FILTRATION for SCIENCE 6 Quarter 1/Week 6 SELF-LEARNING KIT FOREWORD This learning kit is prepared for the learners to enrich their knowledge on the different ways of separating mixtures through evaporation, and filtration. The activities in this learning kit will strengthen the learner’s basic knowledge on how to separate substances in a mixture as stated in MELC that they can use and apply on their daily activities. It is expected that the learners have to share their knowledge and expertise to their friends on separating mixtures and apply it on their day to day life. 2 OBJECTIVES: K: Identify methods to separate mixtures. S: Describe how certain mixtures can be separated through evaporation and filtration. A: Dispose the garbage properly after the activity. LEARNING COMPTENCIES: Describe techniques in separating mixtures such as decantation, evaporation, filtering, sieving and using magnet. (S6MT – 1d – f – 2) I. What Happened https://www.bbc.co.uk/bitesize/guides/zgvc4wx/revision/2 The components of mixtures can be separated in many ways. Find out how in the following activities. 3 PRE-ACTIVITIES/PRE-TEST: Let’s See What You Already Know Before you start studying the SLK, answer the following test to find out how much you already know about the topic to be discussed. Write your answer in your science notebook. A. Draw a happy face if the mixtures that can be separated through evaporation and sad face if NOT Write your answer in your science notebook. 1. water and alcohol 4. Muddy water 2. salt and water 5. Stones and pebbles 3. sugar and water B. Identify the mixture that can be separated through filtering. Write Yes if it can be separated by filtering and No if NOT. Write your answer in your science notebook. 1. Tamarind extract 4. Soil and water 2. Salt and water 5. Lime and water 3. Sand and gravel Let’s Explore A salt solution is made up of water and salt. How do you separate these two substances? Find out in the following activity. 4 Activity 1: Separating Mixtures through Filtration and Evaporation You will need the following materials: 1 tablespoon sand 1 teaspoon salt 2 tablespoons water a plastic bowl/drinking glass pan/tin container stove Safety Precautions Before, During the Activity: 1. Be careful in handling glass wares. 2. Be sure to do the experiment with supervision of your parent/guardian or an adult. 3. DO NOT smell or taste any material especially if you are not familiar with it. 4. Use material with care for the purpose for which it is intended. 5. Carefully follow the procedure. Do the following: 1. Mix the water, sand, and the salt in a pan/tin container. Stir continuously until the salt is dissolved in the water. a. Answer these questions: Does sand dissolved in water? Can you still see the salt? Why do you think it happens? 2. Separate the sand from the mixture. Pour the water, sand and salt mixture into a clean container using a cloth, strainer, or a filter paper to pass it through. Questions: a. Were you able to separate the sand from the mixture? 5 b. Is salt separated from water? Why do you think it happens? c. Is salt still found in the mixture? d. How can we separate dissolved salt from the mixture? Please proceed to the next activity. 3. Pour the water and salt mixture in a pan/tin container over the stove. Let it boil until all the water has gone or evaporated. 4. Observe the residue on the bottom of the container. https://www.bbc.co.uk Questions: a. What happens to the water after boiling for some time? b. Does salt evaporate with water? C. What is left behind at the bottom of the pan/tin container? 6 II. WHAT I NEED TO LEARN Evaporation is a technique used to separate out homogeneous mixtures that contain one or more dissolved salts. The method drives off the liquid components from the solid components. The process typically involves heating the mixture until no more liquid remains. For a solution made up of a solid and liquid, the process of evaporation can be an effective technique of separation. Evaporation is the process of transforming a liquid into a gas. When the liquid evaporates, it leaves behind the solid component of the solution. In the case of salt solution that you tested in the preceding activity, the water evaporated and left the salt as residue in the container. Salt making is the best example of evaporation process which is beneficial to all. Filtration is the process of separating solid substances from a liquid through the use of a filter paper or any cloths that can be used as a filtering medium. These solid residues are trapped by the filter process. It is a separation process in which a mixture is passed through a filter that allows one component to pass through uninhibited but blocks another component from passing through. Filtration works best when the solute isn't dissolve in the solvent. For instance, sand and water can be separated through filtration as both compounds do not dissolve with each other. However, salt and water would not be separated through filtration as they dissolve with each other. Vocabulary Words: 1. filter – an apparatus containing a filter medium 2. filter medium – example filter paper or cloth 3. residue – an usual small amount of something that remain after a process has been completed or a thing has been removed 4. filtrate – something that remain after a process has been completed or a thing has been removed. 7 III. What I Have Learned Post Test. Let us see how much you have learned from the activity about the lesson. Choose the letter of the correct answer. Write your answer in your science notebook. A. Choose the letter of the correct answer. 1. What do you call the process by which water changes from a liquid to gas or vapor? A. decantation C. evaporation B. precipitation D. filtration 2. Which is the best way to get salt from a salty water? A. evaporation C. filtration B. distillation D. magnetism 3. What will happen to liquid during evaporation process? A. become solid C. changes to plasma B. changes to gas or vapor D. none of the above 5. Making salt is an example of separating mixture through ____. A. Decantation C. filtration B. Evaporation D. distillation 6. Which of the following mixture can be separated through evaporation? A. salt and water C. sand and gravel B. mud water D. corn and mongo seeds 7. It is the process of separation of an insoluble solid from a liquid by means of a porous medium which retains the solid but allows the fluid to pass. A. magnetizing C. heating B. evaporation D. filtration 8 8. ______________ is the best way to do when the solute isn’t dissolve in the solvent. A. evaporation C. filtration B. heating D. magnetizing 9. It is the remains after a process has been completed or a thing has been removed. A. filtrate B. filter C. residue D. medium 10. Solids are removed from a liquid by using a porous material. A. Decantation C. evaporation B. Filtering D. sieving B. True or False. Write T if the sentence is correct and F if it is not. _____ 1. Salt solution can be separated through evaporation. ______2. Evaporation is the best way to separate salt from a sea water. ______ 3. You can separate the sugar from the softdrink. ______ 4. Purified water is safe to drink. ______ 5. Filtrate is something that remain after a process of filtration. 9 References: Adurru, Myrna Q. and Nicetas Valencia, Cyber Science 6, K to 12, Revised Edition, Rex Book Store Cruz, Faustina R.,Bonita C. Tolero, Flordeliza J. Tan, Rizza M. Alvarez, Rizza M. Alvarez, Rosita P. Paragoso, and Lorna S. de Pio, Science– Grade 6 Teacher’s Guide, LRMDS, First Edition 2017. DepEd-BAM, Separating Mixtures, Science and Health 4 Module 40 (DLP), The Australian Agency for International Development LRMDS, Modified In-School Off-School Approach Science 4 Modules(MIMOSA), DepEd-Division of Negros Occidental, Revised Edition, 2010 https://www.siyavula.com/read/science/grade-7/separatingmixtures/07-separating-mixtures?id=toc-idhttps://www.bbc.co.uk/bitesize/guides/zgvc4wx/revision/1 https://www.bbc.co.uk/bitesize/guides/zgvc4wx/revision/2 10 DEPARTMENT OF EDUCATION SCHOOLS DIVISION OF NEGROS ORIENTAL SENEN PRISCILLO P. PAULIN, CESO V Schools Division Superintendent FAY C. LUAREZ, TM, EdD, PhD OIC - Assistant Schools Division Superintendent Acting CID Chief NILITA L. RAGAY, EdD OIC - Assistant Schools Division Superintendent ROSELA R. ABIERA Education Program Supervisor – (LRMDS) ARNOLD R. JUNGCO PSDS – Division Science Coordinator MARICEL S. RASID Librarian II (LRMDS) ELMAR L. CABRERA PDO II (LRMDS) JUDITH S. AMIGO Writer ANTHON NORMAN S. AMIGO KOREN O. BALBUENA Layout Artists BETA QA TEAM DORIN FAYE D. CADAYDAY MERCY G. DAGOY MARY JANE E. ELMA MARIA ELVIE E. SIENES JIMUEL SUN, EdD CRISTITA R. TINGUBAN, PhD ALPA QA TEAM MERCY R. DAGOY MARIA ELVIE S. SIENES CRISTITA R. TINGUBAN DISCLAIMER The information, activities and assessments used in this material are designed to provide accessible learning modality to the teachers and learners of the Division of Negros Oriental. The contents of this module are carefully researched, chosen, and evaluated to comply with the set learning competencies. The writers and evaluator were clearly instructed to give credits to information and illustrations used to substantiate this material. All content is subject to copyright and 11 written consent from the division. may not be reproduced in any form without expressed SYNOPSIS Mixtures can be physically separated by using different techniques. This SLK discussed some of the ways of separating components in the mixtures such as decantation, evaporation, filtration, sieving or sifting, and using magnet or magnetizing. Separation of substances is very important in our day to day life. Learners who have learned concrete idea and knowledge on how to separate substances in a mixture can obtain important and pure substances from products in the community. The unwanted particle from the mixture can be made into another product which is beneficial to all. Thank you for trying your best in accomplishing this Self Learning Kit (SLK). Share the things you have learned with your family and friends. PRE-TEST A. 1. 2. 3. 4. 5. B . 1. Yes. 2. No. 3. No. 4. Yes 5. No LET’S EXPLORE 1. a. No. No. It dissolves in water. 2. a. Yes. b. No. It dissolves in water c. Yes. by heating the water/evapoation 3. It disappeared/evaporated. b. No c. Solid salt POST TEST A. 1. C 2. A 6. A 7. D B. 1. T 2. T 3. B 8. C 3. T 4. B. 5. B 9. A 10. B 4. T 5. T The Author: JUDITH S. AMIGO, Master Teacher II. She finished her Bachelor of Science in Elementary Education at Foundation University, Dumaguete City in 1987. With the same university she completed her Master of Arts in Education (MAED) in 2012. Recently she is a science teacher in San Francisco Elementary School and at the same time, a district science coordinator of Sta. Catalina District I, Sta. Catalina. Negros Oriental. The Illustrator: ANTHON NORMAN S. AMIGO. Recently a “Junior Architect” for GH10 Architects and Associates, also the Leadman for Computer Generated Images (CGI) and Architectural Visualization Department of the said company. 12