DEPARTMENT OF EDUCATION DIVISION OF SAN JOSE DEL MONTE CITY San Ignacio St., Poblacion, City of San Jose del Monte 3023 LEARNING ACTIVITY SHEETS (LAS) Science 8 3rd Quarter Module 1 THE PARTICLE NATURE OF MATTER (S8MT-IIIa-b-8 - S8MT-IIIc-d-9) 8 Objectives 1. Identify the different properties of matter; 2. perform the physical changes of matter through home-based activity; and 3. appreciate physical changes of matter in a daily life experience. Pretest: Choose the letter of your answer. Use separate sheet of paper. 1. What do you call the representation of an idea and concept which you cannot observe with your senses? a. drawings b. illustrations c. models d. sub-microscopic model 2. Refers to the state of matter that takes the shape of the container. a. gas b. liquid c. plasma d. solid 3. State of matter having particles able to move freely to all parts of the container. a. gas b. liquid c. plasma d. solid 4. Refers to a state of matter having a definite shape and volume. a. gas b. liquid c. plasma d. solid 5. State of matters having particles move and change positions but not as freely as those in gas a. gas b. liquid c. plasma d. solid 6. Which of the following statement is TRUE about liquid? a. Distance between particles is large b. Negligible attraction between particles c. Particles are closer to one another d. Particles are packed closely together 7. Which of the following statement is TRUE about solid? a. Attraction between particles is stronger than those in gases b. Negligible attraction between particles c. Particles are able to move freely to all parts of the container d. Particles are held together by strong forces 8. Which of the following statement is TRUE about gas? a. Distance between particles is large b. Have definite shapes and volume c. Particles are closer to one another d. Particles are packed closely together 9. It is a physical change in matters that changes from liquid to solid. a. boiling b. freezing c. melting d. sublimation 10. It is a physical change in matters that turns solid to liquid state. a. boiling b. freezing c. melting d. sublimation 11. It is a physical change in matters that uses heat to change liquid to gas. a. boiling b. freezing c. melting d. sublimation 12. Refers to the process of converting a gas or solid into a liquid. a. condensation b. dissolving c. evaporation d. liquefaction 13. Refers to a process of a solid of liquid forming a solution in a solvent. a. condensation b. dissolving c. evaporation d. liquefaction 14. Refers to a process when substance condenses from a gas to liquid state. a. condensation b. dissolving c. evaporation d. liquefaction 15. It changes from liquid state to gas state, but it is still a water; it has not changed into another substance. a. condensation b. dissolving c. evaporation d. liquefaction Key Concepts From the idea that matter is made up of particles you were creating your own mental picture and constructing models, which are diagrams that represents of what is happening at a level beyond what your eyes can see. This is what we call the sub-microscopic model of representing an idea and concept which you cannot observe with your senses or even aided by a simple microscope. PARTICLE MODELS OF THREE STATES OF MATTER SOLID • • • • Have definite shapes and volume Particles are packed closely together Particles are held together by strong forces Particles cannot move around Bricks LIQUID • • • • Takes the shape of the container Particles are closer to one another Attraction between particles is stronger than those in gases Particles move and change positions but not as freely as those in gas Milk GAS • • • • Takes the shape of the container Distance between particles is large Negligible attraction between particles Particles are able to move freely to all parts of the container Smoke PHYSICAL CHANGES IN MATTER 1. Boiling - uses heat to change liquid to gas. This occurs when the liquid reaches the boiling point. 2. Condensation – when substance condenses from a gas to liquid state. (ex. The cloud formation where water vapor in the sky condenses into water droplets) 3. Dissolving – a process of a solid of liquid forming a solution in a solvent. (ex. Pouring sugar into a hot cup of coffee) 4. Freezing – when a liquid turn into solid state. 5. Liquefaction – a process of converting a gas or solid into a liquid. 6. Melting – resulting the solid to change into a liquid. (ex. Ice left out on the table) 7. Evaporation – changes from liquid state to gas state, but it is still a water; it has not changed into another substance. 8. Sublimation – conversion of a substance from the solid to gas state without becoming liquid. Activity 1: Place Me! Directions: List down different examples of solid, liquid and gas that you can find around your area and describe its properties. Use separate sheet of paper. THREE STATES OF MATTER A. Solid B. Liquid C. Gas 1. 1. 1. 2. 2. 2. 3. 3. 3. Activity 2: Perform Me! Directions: Perform home-based activity given the following procedures and answer the guide questions below. Use separate sheet of paper. Materials: ▪ Small piece of ice ▪ Transparent glass Procedure: 1. Put the small piece of ice on a transparent glass. 2. Observe what happens to the ice after 5 minutes. 3. Draw an illustration to show how the particles of water behave as ice changes to a liquid. Guide Questions: 1. What changes take place when ice turns into liquid water? 2. Explain what is happening to the particles of water in ice as it turns to liquid using the particle illustration of matter. 3. Explain what will happen to the liquid on the transparent glass if it is transferred into a small container and left inside the freezer after a few hours. Activity 3: Appreciate Me! Directions: Give five (5) examples of physical changes of matter happen in daily life experiences. Example: Butter melts on a warm bread 1. 2. 3. 4. 5. Post test Directions: Choose the letter of your answer. Use separate sheet of paper. 1. Boiling uses heat to change liquid to __________. a. gas b. liquid c. plasma d. solid 2. Freezing changes a __________ into solid state. a. gas b. liquid c. plasma d. solid 3. Melting resulting the __________ to change into a liquid. a. gas b. liquid c. plasma d. solid 4. Condensation is the process when substance condenses from a gas to __________ state. a. gas b. liquid c. plasma d. solid 5. Sublimation is the conversion of a substance from the solid to __________. a. gas b. liquid c. plasma d. solid 6. Which of the following statement is NOT TRUE about solid? a. Have definite shapes and volume b. Particles are packed closely together c. Particles are able to move freely. d. Particles cannot move around 7. Which of the following statement is NOT TRUE about gas? a. Distance between particles is large b. Negligible attraction between particles c. particles cannot move around freely d. takes the shape of the container 8. Which of the following statement is NOT TRUE about liquid? a. Attraction between particles is stronger than those in gases b. has definite shape and volume c. Particles are closer to one another d. Particles move and change positions but not as freely as those in gas 9. Refers to the state of matter that takes the shape of the container. a. gas b. liquid c. plasma d. solid 10. State of matters having particles move and change positions but not as freely as those in gas a. gas b. liquid c. plasma d. solid 11. Refers to a state of matter having a definite shape and volume. a. gas b. liquid c. plasma d. solid 12. State of matter having particles able to move freely to all parts of the container. a. gas b. liquid c. plasma d. solid 13. Which of the following DOES NOT belong to the states of matter? a. gas b. liquid c. plasma d. solid 14. Which of the following DOES NOT belong to the physical changes of matter of matter? a. burning b. boiling c. freezing d. melting 15. What do you call the representation of an idea and concept which you cannot observe with your senses? a. drawings b. illustrations c. models d. sub-microscopic model Answers Key (PRE-TEST) 1. D 2. A 3. A 4. D 5. B 6. C 6. C 7. D 8. A 9. B 10. C 11.A 12. D 13. B 14. A 15. C References K-12 Most Essential Learning Competencies -Department of education Lrdms.deped.gov.ph https://sciencing.com/10-types-physical-change-8455782.html Prepared: ROSELYN B. BITARE Teacher 1 Checked: EDNA B. PAUIG LRMDS Coordinator/MT-1 Curriculum Chairman Noted: CHRISTOPHER B. ALBINO Head Teacher V/OIC/Principal