3. Under what condition will water change to water vapor? By A. heating B. cooling C. freezing D. experimenting 4. Which of the following is the product of combining iron with water and oxygen? A. galvanized iron B. rust C. both A and B D. none of them 5. Which of the following is an example of a chemical change? A. Magnetizing iron filings B. Cutting a piece of wood C. Rusting of a steel wool D. Cutting a paper into one-fourth 6. Which of these materials are made of ceramics? A. Railing B.Pots C. Hallow blocks D. Cans 7. If you see waste materials that are harmful inside the classroom, what will you do? A. Tell to your classmates B. Tell to the leader C. Tell to the Teacher 8Which of the following is the ability of the material to easily decompose? A. Combustibility B. Reactivity C. Biodegradability 9. Which will catch fire easily? A Cloth B. Paper C. Wood D. Vegetable peelings 10. A rusty nail is an example of A. Combustibility C. Biodegradability B. Flammability D. Reactivity 127020 PM Accomplish to Review / Finish Suggested Summative​