18. An example of a physical change. a. Foam and bubbles form after mixing baking soda and vinegar. b. A glass cup falls from the counter and shatters on the ground. c. Paper burns up and leaves ashes, d. A plant uses sunlight and makes food. 19. Consumers are encouraged to reduce their waste by a. Purchasing in bulk c. Switching to re-useable b. Buying items with less packaging d. All of the above 20. This means to make less garbage. For example, instead of buying juice boxes for lunch, large container of juice and use a washable single serving container to take it to school. a. Reduce c. Recycle b. Reuse d. Rebuild 21. Which of the following shows the correct hierarchy? a. Recycle, Reduce, Reuse c. Reuse, Recycle, Reduce b. Reduce, Reuse, Recycle d. Refuse, Refuge, Rufus 22. Reuse of stuff would a. Minimize the strain on the environment. b. Help municipal waste management. c. Both a and b option. d. Be difficult and time consuming 23. Which of the following is a recyclable material? a. Aluminum c. Glass b. Cardboard d. All of the above 24. Serena has grown older, so her mother decided to donate her used clothes to the typhoon in Samar. What waste management did Serena's mother apply? a. Reuse c. Repair b. Reduce d. Recycle 25. Which of the following shows the proper way to recycle. a. Scrap papers from the classroom might be turned into paper bags. b. Buy items in refillable containers. c. Use cloth bags or baskets when you buy groceries/market. d. Use both sides of paper in printing. 26. Plastic is commonly used as soft drinks container, what material can you use plastic? a. empty cans c. used cups b. empty bottles 27. In his class, Mr. Ibarra told his pupils to reuse papers instead of throwing it in they do it? a. Make an origami c. Give to your classmate. b. Use it as scrap paper in math. d. Never mind the advice of the teach ormally useful even after serving its original purpose. d. folded papers
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