SCIENCE Q1 W2 DAY 1-5.pptx this is a power point that can be used by the teacher
- 1. WEEK 2 Day 1 Chemical Reactivity Properties of Materials Based from Science Exemplar of Science Writing Team of Batangas Province Ppt created by: PRECILA R. UMALI JZMES
- 2. Review: Mix and Match Say: I have two capsules here but they were already divided into halves. Help me find the other half. If you are done, paste it on the capsule guide by finding the description of the following property. Written on the green half of each capsule the property of matter while on the other half their respective is there description.
- 3. Motivation
- 4. Motivation These materials are products of chemical reaction. How do we handle these materials? Present the new lesson: Today, we are going to describe the property of materials as to how they react and produce new material Problem: What materials react with other materials? Materials: Kalburo, 20 mL of water, basin Procedure: 1. Put the piece of kalburo into the metal basin. 2. Pour 20 mL of water. 3. Observe what happen. Observation: 1. What are the two materials/substances involved in this activity? 2. How did kalburo react to water? Conclusion:____________________________________________________________ ____________________________
- 5. Motivation Problem: What materials react with other materials? Materials: Vinegar, baking soda, beaker or glass Procedure: 1. Pour the 10 ml of baking soda into the beaker or glass. 2. Put 20 mL of vinegar to the baking soda. Observe what happen. Observation: 1. What are the two materials/substances involved in this activity? 2. How did baking soda react to vinegar? Conclusion:_________________________________ ________________
- 6. Group reporting and presentation What happened to the materials in the activity? 1.What property did they exhibit? 2. How do you describe the chemical reactivity of materials? 4. What are the evidences of chemical reactivity of materials? 5. What materials can be combined to produce new product? 6.What are the effects of chemical reaction in the environment?
- 7. Generalization Chemical Reactivity is the ability of a material to react and produce new materials when combined with oxygen, acid and water. Ex. Tools made of iron get rusty due to the chemical reaction of iron with oxygen and moisture in the air. Iron oxide or rust is formed as a sign of chemical reaction. They have useful effects but they also have harmful effects to people and environment.
- 8. Evaluation Describe the chemical reactivity of materials by giving the product that will be produced when two materials were combined. ___1.Iron with oxygen and moisture in the air. ___2.Peeled apple and oxygen. ___3. Mixed vinegar and chlorine. ___4. Kalburo and water) ___5. Hydrogen peroxide and food color.
- 9. Assignment Gather information about chemical reactivity of materials. List down some products brought by chemical reactions.
- 10. WEEK 2 Day 3 Classification of Materials According to Properties Based from Science Exemplar of Science Writing Team of Batangas Province Ppt created by: PRECILA R. UMALI JZMES
- 11. Learners will answer the following questions through game entitled “What’s the Word? That’s the Word! Review 1. ISLOBULTIY – the ability of a substance to dissolve in liquid and spread evenly 2. AHECIMCL ARECTIVIYT – the ability of material to react and produce new materials 3. SIVSICOYT – these are liquids that easily flow
- 12. Activity Where Do I Belong? Materials: envelope, metacard which indicates the different materials according to properties, glue, pentel pen, manila paper or cartolina What to do: 1. Form 5 groups and choose one among your group members who will act as presenter. 2. Get from your teacher the materials to be used in the activity. 3. Listen to the instructions to be given by your teacher. 4. The leader will get the materials. 5. Classify each material according to properties such as hardness, brittleness, malleability, ductility, flexibility, porosity, density, thermal conductivity, Solubility, Viscosity and Chemical Reactivity (The different substances are written on a strip of paper placed inside the envelope)
- 16. Generalization How can we classify different properties? What are the different properties of the materials? Application What can you see from the picture? What food do you usually eat using syrup or combined syrup to make it delicious?
- 17. Evaluation
- 19. WEEK 2 Day 4 Properties of Materials and their Uses Based from Science Exemplar of Science Writing Team of Batangas Province Ppt created by: PRECILA R. UMALI JZMES
- 20. Review Let’s Play “Are You My Leader? a. Have three volunteers to act as the Mothers: Mother Solubility, Mother Viscosity and Mother Chemical Reactivity. b. The players (maximum of nine) will pick a strip of paper and have a quick thought of who her mother is. c. The player will approach the mother by asking, “Are you my Leader? “ If the player is correct, the mother will answer, “Yes, I am.” The player will stay at the back of her leader. d. However, if the player is wrong, he/she will go back to the starting point and look for her another leader until he/she finds his correct leader. The following words are written on the strip
- 22. Motivation Prepare another group of player for another activity entitled, Back to-Back; Face-to- Face. a. The pupils will look for their partners. b. Through a PowerPoint presentation, the teacher will flash five situations/statements. c. Before the teacher reads each question, she will instruct the pair to do Back-to- Back. d. After reading the question, the teacher will ask the pair to do Face-to-Face. e. If the statement is true, the pupil will show letter T through their hand and cross their arms if it is false. f. Whoever gets the highest score, wins. Here are the possible statements: 1. Mother boils water in a teapot. 2. In a Science class, Group A used sand and water to test the solubility of a material.
- 23. 3. Mang Pedring placed his newly harvested bananas in a sack with kalburo. 4. The vendor tied the leafy vegetable using a thin wire. 5. My grandmother fries the fish using cooking oil.
- 24. a. Group the pupils into five. Let us go back to the statements previously presented. Justify why the statement is correct or wrong. Group I – Sentence # 1 Guide Question: Why it is better to use teapot rather than plastic material in boiling water? Group II – Sentence # 2 Guide Question: Do you think the sand will mix with water? Why or Why not?
- 25. Group III – Sentence # 3 Guide Question: Why do you think Mang Pedring placed the bananas in a sack with kalburo? Group IV – Sentence # 4 Guide Question: Do you think thin wire is better to use in tying leafy Vegetables than a rubber band?
- 26. a. What property of material does each object show? b. Why is it important for you to be familiar with the different properties of materials?
- 27. Evaluation
- 28. WEEK 2 Day 5 Useful and Harmful Materials Based from Science Exemplar of Science Writing Team of Batangas Province Ppt created by: PRECILA R. UMALI JZMES
- 29. Let us try to answer each riddle by guessing the material being described 1.I am made of metal. You can find me in the kitchen. People use me to fry their food. What am I? 2. I am made of ceramic. You can find me in the dining area. People use me if they want to drink coffee or tea. What am I
- 30. 3. I am made of fabric. You can find me in the closet. You use me after you take a bath. What am I? l 4. I am waterproof. I am made of plastic. Your baby brother or sister play with me all the time. What am I? 5. I was made from trees. My partner is pencil. Teachers and pupils use me in school. What am I?
- 31. 1. From what are they made of? 2. Give the property of each material. 3. How do we use those materials? Say: Now that you already know the properties of materials and their uses, let us find out which property of material is useful or harmful to us.
- 32. Problem: Which materials are useful and harmful? Materials:real objects such as face towel, tissue paper, glass wires, casserole, firewood, sponge, sugar, kerosene, window What to do: 1. Observe the materials. 2. Write the property and uses of each material. 3. If these is harmful effect of each material, write their on the appropriate column. 4. Based on the given uses, tell whether each material is useful or harmful.
- 37. a. Describe the materials and identify its property. b. How do we use these materials? c. Do they have harmful effect to us? d. Are they harmful or useful? Generalization Properties of materials are used to determine the usefulness of the materials. *Hard materials such as rocks are used in constructing buildings, roads and bridges.
- 38. *Woods are used to build houses and fence. * Metals which are good conductors of heat are used in cooking. Rubbers which are elastic are used in making shoes and bags and stretchable bags. *Towel, sponge, and tissue paper are porous materials which we use in wiping or drying liquids.
- 39. * Window and eye glasses are transparent materials used in making windows which allow light to pass through them. *Raincoat and umbrella are used during rainy days to protect us from the rain. These materials are waterproof.
- 40. * Window and eye glasses are transparent materials used in making windows which allow light to pass through them. *Raincoat and umbrella are used during rainy days to protect us from the rain. These materials are waterproof.
- 41. * Flammable materials like firewood, paper and fuel are used in burning or cooking because they can be burned easily. *Using these materials without extra care will make them harmful to us.
- 42. Analyze each of the statement and tell whether the use of each material is useful or harmful. ___1. A man is using lusong to grind balinghoy to make nilupak. ___2. A child is sucking plastic toys. ___3. Mother is cooking bibingka through firewood.
- 43. ___4. Mang Isko, a blacksmith (asero) is curving stainless bars to make window grills. ___5. There is a fire in a crowded community.