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8th Grade Chapter 4 Section 2
Test Description: This activity is for the 2001 Glencoe Science Voyages Blue Book. It is geared toward the properties of liquids and gases.
Instructions: Answer all questions to get your test result.
1) Surface tension is a ___________.
A
Cohesive force attracting all other liquid molecules together.
B
A solid substance.
C
How gravity defeats buyoancy.
D
A strong force increasing the kinetic energy of particles.
2) Particles of a liquid have a __________ attraction.
A
Strong
B
transfer of energy
C
Weak
D
Almost no
3) A substance must ___________ in order to change from a gas to a liquid.
A
Freeze
B
Condense
C
Melt
D
Gain energy
4) A substance must ____________ in order to change from a solid to a liquid.
A
Gain energy
B
Vaporize
C
Lose energy
D
Condense
5) Particles of a gas lose energy when they come in contact with a __________ surface.
A
Cold
B
Evaporation
C
Hot
D
High energy
6) As temperature decreases, _____________ also decreases.
A
Heat
B
Kinetic energy
C
Temperature
D
Condensation
7) Why do gas particles easily mix with other gas particles?
A
Because they are greatly spread apart and have a lot of space in between them
B
Because they increase their diffusion rate
C
Who knows?!
D
Because they are densely packed in a crytalline shape
8) Vaporization is when ________.
A
A solid turns into a gas
B
A solid turns into a liquid
C
A liquid turns into a gas
D
A gas turns into a liquid
9) Is helium a fluid?
A
Yes
B
No
C
I don't know
10) The attraction between gas particles _________.
A
Is very strong
B
Is very weak
C
Almost doesn't exist
D
I have no clue!
*select an answer for all questions
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