6. Melting ice is an example of a. Physical change b. Chemical change c. Chemical reactivity d. Physical Chemical change
7. Plastic is commonly used as soft drinks container, what material can you use as a substitute for plastic A. empty cans B. empty plastic bottles Cold shoes D. scratch paper
8. In his class, Mr. Alcoriza told his students to reuse paper instead of throwing it in the bin. How will they do it? A. Make a paper airplane, B. Use it as a scratch paper in computing mathematical equation C. Give it to your classmate. D. Never mind the advice of your teacher,
9. Some materials are normally useful even after serving its original purpose. What will you do to an empty canister of biscuit at home? A. Place it inside the cabinet. B. Burn it. C. Use it instead of plastic to place some of your extra food packs. D. Make a trash bin out of it.
10. You have a lot of small dresses in your cabinet. You have noticed that your playmate used old clothing Is it right to share the clothes that you are not using? A. Yes, because he is my friend. B. Yes, instead of storing it in the cabinet and it would be usable to my friend. C. No, it is a gift from my parents. D. No, I will burn it. 11. The following materials can be reused, EXCEPT: A. woods B. aluminum cans D. paint brush C. paper​