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CI Investigation 8
Test Description: Phase change.
Instructions: Answer all questions to get your test result.
1) A cold glass of water collects water droplets on the outside on a hot summer day. This is an example of what phase change?
A
melting
B
condensation
C
evaporation
D
sweating
2) A candle drips wax on a table. This is an example of what phase change?
A
melting
B
sublimation
C
condensation
D
freezing
3) Dry ice gives off carbon dioxide gas. This is an example of what phase change?
A
condensation
B
sublimation
C
freezing
D
melting
4) Which phase changes require an increase in energy?
A
melting and freezing
B
condensation and evaporation
C
melting and evaporation
D
freezing and condensation
5) Which phase changes require an overall energy loss?
A
melting and evaporation
B
melting and freezing
C
condensation and evaporation
D
freezing and condensation
6) Water is heated on a stove until steam is given off. What phase change is this?
A
condensation
B
freezing
C
boiling
D
evaporation
7) The melting point of a substance is the same temperature as its _________ point.
A
boiling
B
condensation
C
freezing
D
evaporation
8) The condensation point of a substance is the same temperature as its ________ point.
A
dew
B
evaporation
C
melting
D
freezing
9) Adding energy to a substance makes it particles move ______________.
A
slower
B
faster
C
none of these
D
the same
10) On a cold day, a person can see their breath. This is an example of what phase change?
A
evaporation
B
melting
C
freezing
D
condensation
*select an answer for all questions
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