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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
How gravity defeats buyoancy.
C
A solid substance.
D
A strong force increasing the kinetic energy of particles.
2) Particles of a liquid have a __________ attraction.
A
Strong
B
Almost no
C
transfer of energy
D
Weak
3) A substance must ___________ in order to change from a gas to a liquid.
A
Freeze
B
Condense
C
Gain energy
D
Melt
4) A substance must ____________ in order to change from a solid to a liquid.
A
Vaporize
B
Condense
C
Lose energy
D
Gain energy
5) Particles of a gas lose energy when they come in contact with a __________ surface.
A
Hot
B
Evaporation
C
Cold
D
High energy
6) As temperature decreases, _____________ also decreases.
A
Heat
B
Temperature
C
Kinetic energy
D
Condensation
7) Why do gas particles easily mix with other gas particles?
A
Because they increase their diffusion rate
B
Who knows?!
C
Because they are densely packed in a crytalline shape
D
Because they are greatly spread apart and have a lot of space in between them
8) Vaporization is when ________.
A
A solid turns into a liquid
B
A solid turns into a gas
C
A gas turns into a liquid
D
A liquid turns into a gas
9) Is helium a fluid?
A
No
B
I don't know
C
Yes
10) The attraction between gas particles _________.
A
Almost doesn't exist
B
Is very strong
C
I have no clue!
D
Is very weak
*select an answer for all questions
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