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Useful and Harmful Materials 2
Contributed by: MamiShen
  • 1. When is a material harmful?
A) When the material brings danger to people and environment.
B) When the material can be used many times.
C) When the material can be used in cooking.
D) When the material gives other uses aside from its purpose.
  • 2. When is a material considered waste?
A) When the material can be recovered and be used a fuel.
B) When the material served its primary use and can be discarded.
C) When the material can be repaired.
D) When the material is still another use.
  • 3. What happens to biodegradable waste when they are thrown?
A) Melts by the sun
B) Broken into pieces
C) Decomposed by bacteria
D) Flattened
  • 4. Which of the following is a non-biodegradable waste?
A) rubber
B) wood
C) leaves
D) paper
  • 5. Which of the following is a Useful Material?
A) Empty Disinfectant Bottle
B) Drained Batteries
C) Old Newspapers
D) Used Paintbrush
  • 6. Which of the following is a Harmful Material?
A) Drained Batteries
B) Rubber Tires
C) Empty Mayonnaise Jar
D) Plastic Water Bottles
  • 7. This type of chemical helps to fight infection.
A) Antibiotic
B) Sodium bicarbonate
C) Vinegar
D) Sodium Chloride
  • 8. Which of the following is NOT a helpful chemical?
A) Penicillin
B) Sodium Chloride
C) Vinegar
D) Mercury
  • 9. Which of the following is an example of harmful material?
A) Plastic straw
B) Paper
C) Cleaner
D) Plastic bottle
  • 10. How do you dispose different materials?
A) Segregate it properly and recognize the useful and harmful materials
B) Throw it into the river
C) All of these
D) Keep it your house
  • 11. Which materials are used for food?
A) fish sauce
B) coffee
C) soda
D) beer
E) dishwashing liquid
  • 12. Which materials are used for cleaning?
A) Butter
B) Dishwashing Liquid
C) Soap
D) Alcohol
E) Bleach
  • 13. Which materials are harmful?
A) milk teasoy sauce
B) muriatic acid
C) insecticideinsecticide
D) gasoline
E) fruit shake
  • 14. Which materials are useful?
A) gasoline
B) cooking oil
C) vinegar
D) dishwashing liquid
E) toothpaste
  • 15. It is safe to drink gasoline.
A) TRUE
B) FALSE
  • 16. We use water and soap to wash our hands.
A) TRUE
B) FALSE
  • 17. You should mix bleach to your morning cereal.
A) FALSE
B) TRUE
  • 18. Use lotion on your skin to prevent dryness.
A) FALSE
B) TRUE
  • 19. Gloves should be used when handling muriatic acid when cleaning.
A) FALSE
B) TRUE
  • 20. Betadine is used for seasoning.
A) FALSE
B) TRUE
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