Philippines Water Properties LAS PDF

Republic of the Philippines Department of Education NATIONAL CAPITAL REGION SCHOOLS DIVISION OFFICE – QUEZON CITY QUEZON CITY SCIENCE HIGH SCHOOL...

Republic of the Philippines Department of Education NATIONAL CAPITAL REGION SCHOOLS DIVISION OFFICE – QUEZON CITY QUEZON CITY SCIENCE HIGH SCHOOL BRGY. STO. CRISTO, QUEZON CITY Class Name of members No. 1. Group No.: 2. Section: 3. Date: 4. Subject Teacher: 5. QUARTER 2 LEARNING ACTIVITY SHEET 3 Activity 1. The Properties of Water Introduction A water molecule consists of one oxygen atom and two hydrogen atoms which are arranged in a V-shape like formation. It has a slightly negative charge at the oxygen end and a slight positive charge at the hydrogen end, making it a polar molecule with end poles behaving like a magnet. The intermolecular attraction in water gives its unique properties such as rising in capillary tubes, plant roots, and blood vessels against gravity possible. Water also has a high heat capacity that enables it to affect the earth’s temperature in a gradual manner. It requires more thermal energy to increase its temperature. Water is an important solvent and its properties like its adhesion, cohesion, density, and surface tension all contribute to make life possible and sustainable in our planet.  Figure 1: Structure of a Water Molecule(quizlet.com) A. Crossword Puzzle Objective: To identify the different properties of water Materials: Colored marker and references Procedure: Complete the crossword puzzle below which enumerates the different properties of water. Questions: 1. What are the different properties of water? 2. What contributes to the unique properties of water? B. Watch Me in Action! Objective: To perform simple experiments to observe the different properties of water Materials: water, ice cubes, tissue paper, food color, spray bottle, mirror, sugar, spoon, drinking glass, and paper clip Procedure: Setup 1 1. Pour water in a drinking glass until the glass is half full. 2. Place ice cubes inside the drinking glass that is half-filled with water. Q1. What did you notice with the ice cubes as you put them on Fig. 2. Setup 1 the water? Explain why. Q2. Which property of water was observed? Setup 2 1. Pour water in a drinking glass. 2. Mix the food color with the water inside the glass using a spoon. 3. Dip the tip of a tissue paper inside the glass with colored water. Observe. Fig. 3. Setup 2 Q3. What happened to the tissue paper? Q4. Explain your observations.  Q5. Which property of water was observed? Setup 3 1. Fill a spray bottle with water. 2. Spray water on the surface of a mirror. Q6. What happened to the water after you spayed it on the mirror? Fig. 4. Setup 3 Q7. Did some of the water stick to the surface of the mirror? Why do you think so? Q8. Which property of water was observed? Setup 4 1. Pour water in a drinking glass until it is half-filled. 2. Add a teaspoon of sugar in it. 3. Stir the sugar with water using the spoon. Q9. What happened with the sugar as you continually mix it Fig. 5. Setup 4 with water using the spoon? Q10. What is the most likely explanation for what you have observed with the sugar and water? Q.11. Which property of water was observed? Setup 5 1. Pour water on a drinking glass until full. 2. Gently place a paper clip on top of the water. Q12. What happened to the paper clip as you placed it on top of the water? Q13. Explain your observation. Q14. Which property of water was observed? Fig. 6. Setup 5 Generalization: Complete the concept map below by writing the different properties of water inside each droplet. Application: Directions: Identify the property of water shown in the pictures below. Then, answer the reflective question that follows. Reflective question: Based on the different properties of water discussed, in what ways does water become essential to life?