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