1.The following process show chemical change except_________

2. Which of the following situation shows that materials change in composition?

3. All of the following substances are formed when a candle is burning except ______.

4. Which of the following occurs when iron reacts with oxygen?

5. Which of the following materials form rust?

6. What causes the change of color of a potato when you leave it exposed to air?

7. Which of the following is an example of oxidation?

8. Why do you think silver does not form any rust even when exposed to water or oxygen?

9. Which of the following is an evidence of chemical change?

10. Which of the following type of chemical change is fast?