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Recognizing Useful and Harmful Materials Day 2.pptx

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MarilynEstradaDullas

This document discusses various activities related to reducing waste and promoting environmental sustainability. It includes instructions for activities where students can make environmentally-friendly notepads from used paper, recycled chime decorations from bottle caps and yarn, and inspecting defective household items to think of ways to repair them. The document also discusses the concepts of reduce, reuse, recycle, recover and repair (5Rs) in waste management and gives examples of applying these techniques at home. Students are prompted with questions to think more deeply about other materials that can be managed through the 5Rs and how these techniques benefit the environment.

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Science
Identify which of these materials can be reduced, reused and recycle. Explain the your answer.
Some materials can be managed using two or three R methods instead one.
Recognizing Useful and Harmful Materials Day 2.pptx
Identify the different waste that you can see in the photo. Classify waste material which can be recycled, reduced, reused, repaired and recovered.
Suppose you have come across on this area on your way home, what will you do?
How can you help make your community clean and better place to live in?
Activity Time
Materials to be used: Used Paper Ruler Scissors Glue Fastener
Activity # 1
Environment-Friendly Notepad
1. Allow the learners to gather pad paper, or even colored paper. Tell them to check one side has writings. Keep those with writings on both side for other purposes
2. Instruct the learners to cut into their desired length and width those papers with writings only one side.
3. Ask the learners to bind the cut pieces of paper using glue or fastener. Tell them to make sure that the side with writings is on the underside as they bind each piece of paper.
4. Advise the learners to set aside and let it dry.
5. Tell them that they may now use the side without writing as their notepad.
Activity #2
Recycled Chime
1. Cut nine pieces (9) of yarn measuring 20 cm each.
2. Use sticky tape, attach four metallic bottle caps or crowns along each yarn with a distance interval of 5 cm.
3. Tape the free ends without the bottle caps of the pieces of yarn on the inside of the tin can and space them evenly along the inner side.
4. With glue or duct tape. Let them attach a single loop of yarn on the closed bottom of the can. They can now hang their bottle cap time.
Activity # 3
Inspect the defect
Materials to be used: Paper Pencil
1. Look for the things in your house that are already considered defective or not working anymore.
2. List the items down, then write beside each why it is defective.
3. Go over your list, then think how the items can be repaired to make them useful again. Discuss it with your groupmates.
3. Go over your list, then think how the items can be repaired to make them useful again. Discuss it with your group mates.
Deepening: 1. Allow the learners to read the waste management using 5rs techniques on page 8-5
Deepening: Guide Questions: 1. What other common household materials can we apply the 5Rs techniques? Give example and the appropriate techniques to be used.
Deepening: Guide Questions: 2. In what ways do the 5R technique help environment?
Lets go beyond: List Five (5) things found in your home that can replace with other materials to reduce garbage disposal. Give them at least one example. Example: Paper/Plastic cup- washable glass or mug.
Lets go beyond: There are two types of recycling, the Upcycling and Downcycling. 1.Upcycling- Is a way to make a higher material from its original value. 2.Downcycling- Converts waste materials into a new product with lesser quality.
Give example of upcycling and downcycling.
Give example of upcycling and downcycling.
Energy from the garbage can be harvested through a process called pyrolysis.
How is this process done? And what kind of energy does it generate?
Pyrolysis is breaking down of waste, particularly plastic waste by heating. This process does not involve oxygen and generate energy rich fuels.
Make a diagram about the 5rs. Show what they mean and how they are done. Reduce- Lessening the amount of waste in the environment. Avoiding the usage of disposable materials of a good example of reducing waste Reuse- means using the same material again for a similar purpose.
Recycle This involves the creation of new product from a material that has already sereved its purpose. Recover- This involves harnessing energy from waste through certain processes like pyrolysis. Also other parts can be reused are recovered from waste in a materials recovery facility
Repair Fixing slightly broken things to make them useful again. This is not only helps us reduce waste, It also saves us money. Do Lets Check on page 13. Answer Lets Apply it on page 13.
Answer key; 1. Reusing means using material again for the same purpose. On the other hand, recycling means creating a new product out of discarded materials. 2. We can get energy from Trash by bringing them to certain facilities with technologies such as the plastic to oil etc.
3. By recycling, we reduce the amount of solid waste present in the environment. 1. Envelope of Utility bills- B 2. Perfume bottles- C 3. Empty ink cartridges - B Answer key;
Mary Grace H. Sunga Teacher- I Science V

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Recognizing Useful and Harmful Materials Day 2.pptx

  • 2. Identify which of these materials can be reduced, reused and recycle. Explain the your answer.
  • 3. Some materials can be managed using two or three R methods instead one.
  • 5. Identify the different waste that you can see in the photo. Classify waste material which can be recycled, reduced, reused, repaired and recovered.
  • 6. Suppose you have come across on this area on your way home, what will you do?
  • 7. How can you help make your community clean and better place to live in?
  • 9. Materials to be used: Used Paper Ruler Scissors Glue Fastener
  • 12. 1. Allow the learners to gather pad paper, or even colored paper. Tell them to check one side has writings. Keep those with writings on both side for other purposes
  • 13. 2. Instruct the learners to cut into their desired length and width those papers with writings only one side.
  • 14. 3. Ask the learners to bind the cut pieces of paper using glue or fastener. Tell them to make sure that the side with writings is on the underside as they bind each piece of paper.
  • 15. 4. Advise the learners to set aside and let it dry.
  • 16. 5. Tell them that they may now use the side without writing as their notepad.
  • 19. 1. Cut nine pieces (9) of yarn measuring 20 cm each.
  • 20. 2. Use sticky tape, attach four metallic bottle caps or crowns along each yarn with a distance interval of 5 cm.
  • 21. 3. Tape the free ends without the bottle caps of the pieces of yarn on the inside of the tin can and space them evenly along the inner side.
  • 22. 4. With glue or duct tape. Let them attach a single loop of yarn on the closed bottom of the can. They can now hang their bottle cap time.
  • 25. Materials to be used: Paper Pencil
  • 26. 1. Look for the things in your house that are already considered defective or not working anymore.
  • 27. 2. List the items down, then write beside each why it is defective.
  • 28. 3. Go over your list, then think how the items can be repaired to make them useful again. Discuss it with your groupmates.
  • 29. 3. Go over your list, then think how the items can be repaired to make them useful again. Discuss it with your group mates.
  • 30. Deepening: 1. Allow the learners to read the waste management using 5rs techniques on page 8-5
  • 31. Deepening: Guide Questions: 1. What other common household materials can we apply the 5Rs techniques? Give example and the appropriate techniques to be used.
  • 32. Deepening: Guide Questions: 2. In what ways do the 5R technique help environment?
  • 33. Lets go beyond: List Five (5) things found in your home that can replace with other materials to reduce garbage disposal. Give them at least one example. Example: Paper/Plastic cup- washable glass or mug.
  • 34. Lets go beyond: There are two types of recycling, the Upcycling and Downcycling. 1.Upcycling- Is a way to make a higher material from its original value. 2.Downcycling- Converts waste materials into a new product with lesser quality.
  • 35. Give example of upcycling and downcycling.
  • 36. Give example of upcycling and downcycling.
  • 37. Energy from the garbage can be harvested through a process called pyrolysis.
  • 38. How is this process done? And what kind of energy does it generate?
  • 39. Pyrolysis is breaking down of waste, particularly plastic waste by heating. This process does not involve oxygen and generate energy rich fuels.
  • 40. Make a diagram about the 5rs. Show what they mean and how they are done. Reduce- Lessening the amount of waste in the environment. Avoiding the usage of disposable materials of a good example of reducing waste Reuse- means using the same material again for a similar purpose.
  • 41. Recycle This involves the creation of new product from a material that has already sereved its purpose. Recover- This involves harnessing energy from waste through certain processes like pyrolysis. Also other parts can be reused are recovered from waste in a materials recovery facility
  • 42. Repair Fixing slightly broken things to make them useful again. This is not only helps us reduce waste, It also saves us money. Do Lets Check on page 13. Answer Lets Apply it on page 13.
  • 43. Answer key; 1. Reusing means using material again for the same purpose. On the other hand, recycling means creating a new product out of discarded materials. 2. We can get energy from Trash by bringing them to certain facilities with technologies such as the plastic to oil etc.
  • 44. 3. By recycling, we reduce the amount of solid waste present in the environment. 1. Envelope of Utility bills- B 2. Perfume bottles- C 3. Empty ink cartridges - B Answer key;
  • 45. Mary Grace H. Sunga Teacher- I Science V