SCIENCE 4 WK 3 MATATAG Q1.pptx powerpoint powerpoint presentation

SCIENCE 4 WK 3 MATATAG powerpoint powerpoint presentation

1. science 4

2. QUARTER 1 Week 3 Day 1 Matatag curriculum

3. Materials and their Uses

4. REVIEW What have you learn in the past week?   What are the inventions? What are inventors?

5. MISSION Waste

6. What can you see? Is it a good practice to junk your garbages anywhere?

7. MISSION As you can see, the waste or garbages are being segregated into it’s proper place. Do you also do this at home?

8. UNLOCKING OF VOCABULARY Let us try to unlock some words we may encounter in this lesson WASTE - everything that no longer has a use or purpose and needs to be disposed  

9. WATSE SEGREGATION - is the sorting and separation of waste types to facilitate recycling and correct onward disposal.

10. KINDS OF WASTE   WHAT IS WASTE?

11. MISSION Waste is defined as unwanted and unusable materials and is regarded as a substance which is of no use. Waste that we see in our surroundings is also known as garbage.

12. The sources of waste are inside our households, and commerce and industry.

13. We have 2 Types of Waste.

14. MISSION Biodegradable waste These are the wastes that come from our kitchen and it includes food remains, garden waste, etc. Biodegradable waste is also known as moist waste. This can be composted to obtain manure. Biodegradable wastes decompose themselves over a period of time depending on the material.

15. These are the wastes from our kitchen, including food, garden waste, etc. Biodegradable waste is also known as moist waste. This can be composted to obtain manure. We can decompose biodegradable waste.

16. Non-biodegradable waste These are the wastes which include old newspapers, broken glass pieces, plastics, etc. Non-biodegradable waste is known as dry waste. Dry wastes can be recycled and can be reused. Non-biodegradable wastes do not decompose by themselves and hence are major pollutants.

17. MISSION These are the wastes, including old newspapers, broken glass pieces, plastics, etc. Non-biodegradable waste is known as dry waste. Dry wastes can be recycled and can be reused. Non-biodegradable wastes do not decompose by themselves and hence are major pollutants.

18. Recycling of Waste Recycling of waste product is very important as this process helps in processing waste or used products into useful or new products. Recycling helps in controlling air, water, and land pollution. It also uses less energy. There are a number of items that can be recycled like paper, plastic, glass, etc. Recycling helps in conserving natural resources and also helps in conserving energy. Recycling helps in protecting the environment as it helps in reducing air, water, and  soil pollution .

19. Guess what?   LET US PLAY.   I will name some waste and you show a HEART FINGER if it is Biodegradable and you close your eyes if it is non biodegradable.

20. MISSION

21. Group Activity:   Activity for Group 1-3.   There are waste we see everywhere. Using your trash bags, label each bag with Biodegradable and Non Biodegradable. Then, let us all go outside and pick up waste or garbages and put it in it’s proper place.

22. MISSION A member needs to list the trash you placed inside you bags.

23. What have you learned today?   What is waste? What are the two kinds of waste?

24. ANSWER THIS   Direction: Look at these pictiures below. Name the waste and put it in the proper waste bin.

25. MISSION

26. Thank you for listening!

27. science 4

28. QUARTER 1 Week 3 Day 2 Matatag curriculum

29. Materials and their Uses

30. REVIEW What have you learned?     What is waste? What are the two kinds of watse ?

31. MISSION Guessing Game Arrange the jumbled letters to form a word. A M A M I I T Y L F L B Ask: What is the hidden word? What does FLAMMABILITY mean?

32. What do you think will happen to the paper?

33. MISSION I have here a candle and a paper. Let’s observe the reaction of the materials once it is burnt. Remember not to do this at home.

34. The paper becomes an ash as it was burnt. The physical appearance is no longer seen. It changes it’s properties.   This also goes with other flammable materials or waste you have at home. Be careful not to play with flammable materials.

35. MISSION CHEMICAL PROPERTIES OF MATERIALS (When Burnt)

36. What are Physical Properties and Chemical Properties?

37. MISSION

38. Chemical properties describe how a substance interacts with other substances to form new substances. These properties involve the substance's behavior in chemical reactions, such as its ability to oxidize, react with acids or bases, or combust. They are inherent to the substance's molecular structure and determine its reactivity and compatibility with other materials.

39. MISSION

40. Chemical Properties   1. Heat of Combustion - This property refers to the amount of heat released or absorbed when a substance undergoes complete combustion with oxygen. It's a measure of the energy content within a substance and varies based on the chemical composition.

41. 2. Chemical Stability - It indicates how resistant a substance is to undergo chemical reactions or decompose under specific conditions. Stable substances are less likely to react or decompose spontaneously, while less stable ones may readily undergo reactions or decomposition.

42. MISSION 3. Preferred Oxidation State(s) - This describes the most common or stable oxidation state(s) of an element in its compounds. Elements may exhibit different oxidation states in various compounds, but some elements tend to have specific preferred states based on their electronic configurations.

43. 4 . Ability to Corrode - This property highlights a substance's propensity to deteriorate or undergo corrosion due to chemical reactions to its environment. Corrosion often involves the degradation of materials, especially metals, through reactions with substances like oxygen or moisture, leading to structural damage or degradation over time.

44. LET US KNOW MORE ABOUT FLAMMABILITY We have this what we call FLAMMABILITY

45. MISSION

46. Below are samples of flammable materials

47. MISSION

48. Flammable Materials   Flammable materials are easily ignited, causing fires. They can take the form of solid, liquid or gas. Common flammable materials found in workplaces include liquefied petroleum gas (LPG), paints, varnishes and lacquers. If flammable materials are not managed properly, they pose serious fire risks.

49. MISSION Examples of fire hazards include : Flammable storage areas with insufficient fire protection; Combustibles placed together with flammable materials; and Hot works performed near flammable or combustible materials.

50. When disposing flammable waste materials, you should observe the following: Don't dispose flammable materials together with general waste. Label waste containers as "HAZARDOUS WASTE" together with the appropriate GHS hazard pictogram.

51. Keep waste bins closed when not in use. Contact your toxic industrial waste (TIW) collector once you have reached the minimum quantity required for collection. Record the details of the waste disposal in the waste register.

52. Flammability Testing Activity The activity should be done at home under the strict guidance and supervision of the parents. Record in seconds the flammability time of the following materials : 1. cotton 2. piece of cloth from maong pants a piece of illustration board

53. What have you learned today?   What is chemical property? What is physical Property? What is flammability?

54. ANSWER THIS List down 10 the flammable materilas you know.   1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

55. Thank you for listening!

56. science 4

57. QUARTER 1 Week 3 Day 3 Matatag curriculum

58. Materials and their Uses

59. MISSION REVIEW Can you remember you lesson yesterday?   What is Physical Property? What is Chemical Property? What is flammability?

60. Answer the following:

61. MISSION

62. WHAT SHOUD I DO?   If you were to make a toy, what material will you use so that it will be safe to play? Draw the toy of your choice and explain your answer.

63. MATERIALS CAN BE USEFUL AND HARMFUL   Materials are said to be useful when they serve their purpose. These may have properties such as durability, flexibility, elasticity, hardness, and resistance to water, heat, or acid. Most of the useful materials can be reused and recycled. For example, a container for solid or liquid, when it is already empty, can still be used for other purposes such as a flower vase, a coin bank, or a house decor.

64. Whether a bottle is made of plastic or glass, it has a property that makes it reusable. Other materials can be recycled by making new products from these materials. For example, candy wrappers can be turned into fancy curtains and plastic bottles into Christmas lanterns. Some useful materials may also bring hazards. For example, a broken glass jar can cause cuts or injury. Toxic substances may also be present in the things you commonly use such as paints, cleaners, fumes, gels, or powders. These materials may bring harm to your health, environment, and other organisms when not used properly. That’s why you should be careful when handling and using different materials.

65. Various household products are found in our homes. These are composed of different materials with different properties. It is therefore important for consumers to read product labels. Through product labels, consumers become aware of whether the product is harmful or not. Expiration dates and hazardous signs are some of the most important elements in a product label.

66. Some products are flammable, such as paints and therefore must be stored away from open flames. Others are corrosive, like muriatic acid, so it is advisable to keep them away from children’s reach. Pesticides, fertilizers, and muriatic acid are poisonous if not handled properly. Reading product labels can help you identify whether the product is useful or harmful. These simple symbols in labels give ideas on how to use and store the product properly, and to help prevent accidents from happening and therefore save lives.

67. MISSION

68. MISSION brittleness, combustibility, thermal conductivity and toxicity. Put a check (/) on the box that closely describe the material. Write your answers on your notebook.

69. MISSION

70. INDIVIDUAL ACTIVITY   Directions: Complete the paragraph using the words in the box

71. Many materials and substances are _________at home and in school, but they can be ______ if not used properly. Materials are considered useful when they serve their _____. Some useful materials can be______, for example an empty container can be used as a house decor. But some materials can be ____________ like a broken glass jar that can cause cuts or injury.

72. MISSION What have you learned today?

73. Read each item carefully and choose the letter of the answer. Write the letter only. Write your answers on your notebook.   Gold can be shaped into rings. What property does gold have? a. Hardness b. Elasticity c. Strength d. Malleability

74. 2. Rubber bands can be used to secure things tightly because they can be stretched and can go back to their original shape. What property do rubber bands have? a. Hardness b. Elasticity c. Strength d. Brittleness 3. Wood is made into chopping boards. What property does wood have? a. Hardness b. Elasticity c. Strength d. Brittleness

75. 4. Which solid does not belong to the group? a. Gold bracelet b. Iron nail c. Silver ring d. Plastic spoon 5. Why are metals very useful? a. They can be broken easily. b. They can be thrown easily. c. They can produce good sound. d. They are hard and can be made into different shape.

76. Thank you for listening!

77. science 4

78. QUARTER 1 Week 3 Day 4 Matatag curriculum

79. Materials and their Uses

80. REVIEW What did you learn yesterday?

81. Directions: Write Agree if the statement tells proper waste management at home, in school, and in the community and Disagree if it does not. Write your answers on a separate sheet of paper.   1. Burn plastic packaging to manage waste problems. 2. Convert kitchen wastes like fruit and vegetable peelings into compost.

82. 3. Segregate biodegradable, non-biodegradable and recyclable waste at home. 4. Pick garbage that is scattered in the community and dispose it in the proper trash bin. 5. Dispose dead animals in the canal or other bodies of water.

83. 6. Label the garbage cans properly in school for the children to practice correct disposal of waste. 7. Recycle plastic products into art projects to minimize the wastes. 8. Support the Clean and Green Program of the community to maintain the cleanliness of a place.

84. 9. Throw empty bottles of chemical sprays in the vacant lots. 10. Sell scraps in the junkshop to reduce waste and earn money.

85. DID YOU KNOW? Wastes are found in our home, school and community. These wastes are classified as biodegradable, non-biodegradable and hazardous. Wastes found in school, in the community and at home should be managed properly to reduce them, to prevent diseases or illnesses and to maintain a healthy environment.

86. Waste management is the collection, transportation and disposal of garbage, sewage and other waste products. Improper waste management causes problems like clogged canals or drainage, flooding and various diseases that make our environment unsafe. It is a big challenge to the school, home and the community on how to involve people in proper segregation of wastes.

87. MISSION If biodegradable, nonbiodegradable and hazardous wastes can be classified and managed properly, we can easily identify which can be re-used or converted into new things to reduce wastes. How beautiful it is seeing no waste or garbage scattering in our community

88. Let us listen to the kids as they talk about Biodegradable, Non-biodegradable waste and hazardous waste

89. MISSION

90. MISSION

91. MISSION ACTIVITY Directions: Answer the checklist honestly with YES or NO as to your participation in managing waste at home, in school and community. Write your answers on a sheet of paper.

92. MISSION

93. REMEMBER Classifying and managing wastes found in school, home and community would help us minimize problems about garbage. Biodegradable wastes should not be automatically thrown in bins. Composting, a method taught in Agriculture subject, would help in converting biodegradable wastes into organic fertilizer. Dead animals and rotten plants should be buried in the pit to prevent foul odor and to make them into compost. Non-biodegradable wastes should be converted into useful things.

94. There are so many DIY’s or “Do It Yourself” projects that you can do out of the wastes that do not decompose. Use your creativity to make new materials such as toys, decorations, art projects and others. Hazardous wastes are dangerous wastes. It is advised to put this type of waste in a sealed container and dispose properly by burying in specially built landfills or pit. Dispose this type of waste with adult supervision.

95. Directions: Read the questions carefully about how to manage wastes properly. Choose the letter only of the correct answer and write it on a sheet of paper.   1. Fruit and vegetable peelings are biodegradable wastes. How should these wastes be managed? A. Throw in the canal. B. Use the wastes for composting activity. C. Sell in junkshops. D. Dispose anywhere.

96. 2. Plastics and metal scraps are non-biodegradable wastes. What should be done to manage these? A. Put it in a sack and throw it in a vacant lot. B. Sell in the junkshop. C. Leave the waste scattering in the area. D. Throw in the compost pit. 3. Hazardous wastes are poisonous. What should be done in handling this type of waste? A. Use gloves and mask in handling the materials. B. Pick with your hands and throw in the trash can. C. Put in the compost pit. D. Collect and place near your food products.

97. MISSION 4. Your family decides to have a backyard compost pit. What waste materials should be included as compost materials? A. cans and plastic containers B. expired medicines and metal scraps C. leaves, twigs and food waste D. bottles and old newspapers

98. 5. Which of the following is a proper management of waste? A. Throw the trash anywhere if nobody is watching. B. Dump hazardous waste in the river. C. Burn non-biodegradable waste like plastic packaging to reduce waste. D. Feed biodegradable wastes like plant peelings to animals.

99. Thank you for listening!

100. science 4

101. QUARTER 1 Week 3 Day 5 Matatag curriculum

102. Materials and their Uses

103. REVIEW   What have you learn yesterday?   What are biodegradable materials? Non-biodegradable?

104. Do you know that there are color-coded bins to sort our wastes easily? Take a look at the pictures of the waste sorting bins. Do you have these in your school?

105. “ Color-coded Bins ” by: Francilet R. Padios   Here is a green bin, biodegradable waste…you pitch in!   Next bin is yellow, recyclable waste…off you throw!

106. Third bin is blue, non-biodegradable waste…you put there too!   Throw it in…always put the waste in the proper bin!

107. Let us meet Lino and Lina

108. MISSION

109. MISSION WE CAN TURN WASTE INTO SOMETHING USEFUL LIKE THESE BELOW

110. ACTIVITY Directions: Fill in the blank with the correct word or words inside the box. Write your answers on a separate sheet of paper. 1. Put LABELS in the garbage bins or trash cans the different kinds of wastes in school and make sure that the right bins are used properly.

111. 2. Bury food scraps, plants and dead animals in the PIT to convert into compost. 3. Recycle bottles, tin cans and paper found in the community by selling them in JUNKSHOPS .

112. 4. We should properly SEGREGATE waste found in the community. 5. Manage reusable wastes at home by RECYCLING them into toys, art projects and home decorations.

113. MISSION

114. What are your realizations about waste management? Will it be difficult for you to do one of the 5R’s mentioned by Lino and Lina? In your own home, which of the 5R’s did you and your family do? How about in your school? Is your community supporting the 5R’s of waste management? Being a responsible member in home, school and community is of great help in maintaining a healthy environment.

115. Choose to be a person who in little ways or perhaps in big ways could manage the trash properly.

116. MISSION Directions: Write True if the statement shows proper management of wastes and False if it does not. Write your answers on a separate sheet of paper.   1. Put the biodegradable wastes in a green bin.

117. 2. Secure the garbage bag tightly to prevent animals from scattering the trash in the community. 3. Throw empty plastic wrappers under the chair when nobody is watching.

118. MISSION 4. Join community services like Clean and Green Program to help in the management of wastes. 5. Gloves and masks are not needed in handling hazardous materials.

119. Thank you for listening!