1. Properties of Matter Quiz

2. Q1: In the Crime Scene lab, some of your samples “fizzed” (active spontaneous bubbling). Fizzing is an example of which type of change?
A: Chemical

3. Q 2: If I were to take a metal wire and bend it around a corner, this would be an example of which type of change?
A: Physical

4. A: Do tests; compare results (same results = same substance
Q 3: What could we do to determine if two unknown substances were the same thing? ?
(use the two skateboards & p
A: Do tests; compare results (same results = same substance

5. Q 4: All phase changes are which type of change?
A: Physical

6. Q 5: What about this phase graph would be different if we changed substances?
A: The temperature

7. Q 6: What happens to a substance in ALL Physical Changes?
A: Stays the same substance!

8. Q 7: Water in a pot is heated to the point of boiling
Q 7: Water in a pot is heated to the point of boiling. The evaporation into a vapor is which kind of change?
A: Physical

9. Q 8: A flat spot on a phase graph represents what?
***Flat spots on the graph
are:_________________
A: A phase change!

10. Q 9: What happens to ALL substances when they are changed chemically?
A: They are changed into a brand new substance!

11. Q 10: What evidence do you have that dissolving a substance in water is a physical change?
A: In the boiling water lab, the salt was left behind when the water evaporated.

12. Q 11: How would you determine if a change of color was a chemical or physical change?
A: Unexpected Color = Chemical (rxn) Expected Color = Physical (mixing)

13. Q 12: Burning is always which type of change?
A: Chemical