1.6 Changes of state-melting and freezing
Authored by Mohamed M.Elhassan
Chemistry
6th Grade
Used 23+ times
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the change of state from solid to liquid called?
Evaporation
Melting
Condensation
Sublimation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the particles when a solid begins to melt?
They stop moving
They move out of their fixed positions
They become smaller
They disappear
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the temperature at which a substance melts called?
Condensation point
Boiling point
Freezing point
Melting point
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the particles when a liquid freezes?
They start moving.
They become smaller.
They arrange themselves in a pattern.
They move faster.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is true for all changes of state?
Total number of particles are increased or decreased.
Particles move at the same speed.
Particles themselves change.
Particles do not change.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a solid melts Its particles ........................ energy.
lose
gain
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a solid melts the particles overcome the attraction force and start to move around, in and out of each other.
True
False
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