Phases of Matter
3.d. Students know the states of matter (solid,
liquid, gas) depend on molecular motion.
1. Which of the following show the phases
of matter in the order from LEAST to
MOST molecular motion?
a. Solid – Gas – Liquid
b. Liquid – Solid – Gas
c. Gas – Solid – Liquid
d. Solid – Liquid – Gas
2. Which statement is true about the
motions of solids, liquid and gases?
a. Solid molecules has more motion than
liquid
b. Solid molecules has more motion than
gas
c. Liquid molecules has more motion than
gas
d. Gas molecules has more motion than
liquid
3. When water evaporate from liquid to
gas, the molecules:
a. Spread out
b. Split
c. Combined with other molecules
d. Form a new substance
4. What word describes the volume of a
solid?
a. Variable
b. Fixed
c. Definite
d. Exact
5. Liquid has definite _____ and _____ shape.
a. Shape, volume
b. Pressure, density
c. Volume, indefinite
d. Distance, velocity
6. Phases of matter are dependent on the
_____.
a. Size
b. Molecular motion/movement
c. Elevation
d. Location
7. Air a mixture of different elements and
compounds in _______ form.
a. Gas
b. Aero
c. Liquid vapor
d. Solid
8. Which statement is true?
a. The energy level of solids are greater
than liquids
b. The energy level of gases are greater
than liquids
c. The energy level of gases and liquids are
the same
d. The energy level of solids and liquids are
the same
9. In which of the following do the
molecules have the LEAST energy?
a. A frozen popsicle
b. A glass of lemonade
c. A cup of warm coffee
d. A pot of boiling water
10. Which object contains matter with the
MOST energy?
a. A science book
b. A helium balloon
c. A glass of water
d. A scoop of ice cream
3.e. Students know that in solids the atoms are
closely locked in position and can only vibrate; in
liquids the atoms and molecules are more
loosely connected and can collide with and move
past one another; and in gases the atoms and
molecules are free to move independently,
colliding frequently.
11. Which of these statements best explains
how molecules in a liquid act?
a. Closely spaced molecules vibrate
b. Closely spaced molecules slide past one
another
c. Molecules move independently of one
another and collide often
d. Molecules are bonded to form one large
molecule
Phases of Matter
12. Which of these statements best explains
flowing liquids?
a. Closely spaced molecules vibrate.
b. Closely spaced molecules move past
one another.
c. Molecules move independently of one
another.
d. Molecules are bonded to form one large
molecule.
13. Arnold knows from using a bicycle pump
that gases can be compressed into a
smaller volume. Which of these
statements best explains why this is
possible?
a. Molecules in a gas are arranged in a set
pattern.
b. Molecules in a gas become smaller
under pressure.
c. Molecules in a gas have lots of space
between them.
d. Molecules in a gas are strongly attracted
to one another.
14. Which of the following statements best
describes why solids have definite shapes
while liquids and gases do not?
a. Atoms have more heat when in the
solid state.
b. Atoms vibrate slightly in position when
in the solid state.
c. Atoms are softer when in the liquid and
gas states.
d. Atoms are lighter when in the liquid and
gas states.
15. What word describes the spreading out
of gas molecules?
a. Crystals
b. Viscosity
c. Diffusion
d. Fart
16. Which liquid has the greatest viscosity?
a. Honey
b. Soda
c. Water
d. Carbon Dioxide
17. In which compound do molecules move
freely and collide often?
a. Solution of salt dissolved in water
b. Solid sodium chloride
c. Liquid sodium chloride
d. Gaseous sodium chloride
18. The tiny particles that make up a solid
a. Can move more easily than the particles
in other phases.
b. Can flow around each other.
c. Are spread far apart.
d. Are packed very close together.
19. Which phase is the densest?
a. Solid
b. Liquid
c. Plasma
d. Gas
20. Compressing is a term used to increase
the pressure of a gas. What is the best
example of a compressed gas?
a. The air inside a bicycle tire
b. The steam coming from a pot of boiling
water
c. The bubble produced by scuba divers
under the water
d. None of the above
5.d. Students know physical processes include
freezing and boiling, in which a material changes
form with no chemical reaction.
21. In order for a liquid to change into a
solid, the object must ______________
thermal energy.
a. Add
b. Remove
c. Constant
d. Normal
Phases of Matter
22. Matter changes state (phase) when a
sufficient amount of thermal energy
changes.
a. True
b. False
c. Both
d. Neither
23. On a hot sunny day, ice cream will
transform from a solid to a liquid. What
phase change did the ice cream
experience?
a. freezing
b. melting
c. condensation
d. boiling
24. Which of the following describes a
physical process for turning a solid into a
gas?
a. Baking a cake
b. Heating ice until it melts, then boiling it
c. Burning wood until it creates smoke and
flames
d. Blowing baby powder in the air
25. Which of the following involves a
decrease in molecular motion?
a. Freezing
b. Melting
c. Boiling
d. Condensation
26. As an ice cube melts, its molecules
a. Release heat energy and move closer
together
b. Release heat energy and move farther
apart
c. Absorb heat energy and from a crystal
pattern
d. Absorb heat energy and move farther
apart
27. What phase change does dry ice undergo
when it transforms from a solid to a gas,
skipping the liquid phase entirely?
a. Boiling
b. Condensation
c. Sublimation
d. Deposition
28. Phase change is a form of _________.
a. Chemical change
b. Physical change
c. Mixture
d. Solution
29. The beads of sweat on the outside of
your cup come from the water vapor in
the air. What phase change did the water
vapor have to undergo to become the
dew drops on the outside of your cup?
a. Deposition
b. Condensation
c. Evaporation
d. Solidification
30. As matter cools, its particles ___________.
a. Move farther apart
b. Move closer together
c. Stay the same
d. Turn blue