1. The universe is made of __________________.
2. What are the three phases (states) of matter?
_________________ _________________ _________________
3. The only difference between molten (liquid) steel and solid steel is
________________.
4. What is needed to change a phase of matter? ________________
5. How does a refrigerator cool food and drinks?
_____________________________________________________
6. Changing a SOLID to a LIQUID to a GAS requires _________________.
7. Nitrogen is a liquid at ___________
o
C. Nitrogen makes up _______% of
the air that we breathe.
8. What happened to the onion after soaking in the liquid nitrogen?
________________________________________________________
9. Dry ice is solid ___________________ __________________.
10. The slower molecules move, the ________________ the temperature.
11. Absolute zero is when molecules come to a complete _____________.
12. Circle the appropriate answer for each phase of matter.
Bill Nye
Phases of Matter
Shape (circle one) Volume (circle one)
Solid Definite or Changing Definite or Changing
Liquid Definite or Changing Definite or Changing
Gas Definite or Changing Definite or Changing
13. What is the name of the Bill Nye music video? ___________________
14. Matching
A. Solid _____ gas solid
B. Liquid _____ energy is absorbed (energy goes in)
C. Gas _____ solid gas
D. Exothermic _____ liquid solid
E. Endothermic _____ molecules move past each other,
change in shape, no change in volume
F. Freezing _____ gas liquid
G. Melting _____ solid liquid
H. Condensation _____ molecules vibrate in place, no change
in shape, no change in volume
I. Vaporization _____ energy is released (energy goes out)
J. Sublimation _____ liquid gas
K. Deposition _____ molecules move very fast, lots of energy,
change in shape, change in volume
