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- 1. Multiple Choice
A _______________________ alters the form of an object without changing what type of matter it is.
chemical change
physical change
positive change
negative change
- 2. Multiple Choice
The temperature at which a substance melts.
freezing point
boiling point
melting point
thermal expansion
- 3. Multiple Choice
The temperature at which a substance freezes.
freezing point
boiling point
melting point
thermal contraction
- 4. Multiple Choice
The temperature at which a substance boils.
freezing point
boiling point
melting point
thermal expansion
- 5. Multiple Choice
At what temperature does water boil?
0o C
32o C
100o C
212o C
- 6. Multiple Choice
At what temperature does water melt?
0o C
32o C
100o C
212o C
- 7. Multiple Choice
True or False? Every pure substance melts and boils at the same temperature.
True
False
- 8. Multiple Choice
True or false? A change in temperature is required for matter to go through a change of state.
True
False
- 9. Multiple Choice
What occurs when an object's temperature is rising?
freezing
contraction
condensation
expansion
- 10. Multiple Choice
The state of matter with the most energy is _____________.
solid
liquid
gas
none of the above
- 11. Multiple Choice
__________________________ is the increase in an object's volume due to a change in heat.
condensation
thermal contraction
thermal expansion
evaporation
- 12. Multiple Choice
When an object loses heat, its particles slow down and the object begins to shrink. This is an example of _______________.
condensation
thermal contraction
thermal expansion
evaporation
- 13. Multiple Choice
Ice floats in water because it is _____________ than water.
moving slower
more frozen
less dense
more dense
- 14. Multiple Choice
Water ____________________ when it freezes.
expands
contracts
evaporates
moves faster
- 15. Multiple Choice
Which is NOT an example of a physical change?
breaking a pencil in half
melting snow
boiling water
burning a log on a fire
- 16. Multiple Choice
_______________________ occurs when a substance changes directly from a solid to a gas.
Sublimation
Condensation
Evaporation
Expansion
- 17. Multiple Choice
When a substance GAINS heat, its particles move ___________.
slower
faster
in the same direction
closer together
- 18. Multiple Choice
When a material LOSES heat, its particles move _______________.
slower
faster
closer together
both a and c
- 19. Multiple Choice
Gas particles ________________________________.
are closely packed together
vibrate past one another
move quickly and far apart from one another
are strongly attracted to one another
- 20. Multiple Choice
Particles in a liquid __________________________.
are closely packed together
vibrate past one another
move quickly and far apart from one another
are strongly attracted to one another
- 21. Multiple Choice
Water turning into water vapor is an example of ___________.
condensation
evaporation
expansion
contraction
- 22. Multiple Choice
Oxygen molecules at low temperatures can _________________ into a liquid.
condense
evaporate
expand
contract
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