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Exam Review 2
Test Description: Answer the review questions about physical and chemical properties of matter.
Instructions: Answer all questions to get your test result.
1) The different phases of matter exist at different density levels. Which of the following lists the phases in order from most dense to least dense for most materials?
A
liquid > solid > gas
B
solid > liquid > gas
C
gas > liquid > solid
D
liquid > gas > solid
2) If you were a water molecule in a glass of water how would you best describe your relationship with the water molecules around you?
A
moving slowly away from some molecules and quickly towards others
B
constantly running into different molecules
C
held in a rigid pattern with other molecules
D
always near the same molecules
3) A change from one phase to another involves
A
a subtraction of heat
B
an addition OR a subtraction of heat
C
an addition of heat
D
a change in temperature
4) You are using a bucket of water in a science experiment. You conclude that water is a liquid because
A
its temperature is relatively stable.
B
it flows easily from one container to another.
C
it is cool but can be heated up relatively easily.
D
it takes the shape of the bucket.
5) On a cold day sometimes water molecules in the atmosphere will turn into snow. This phase change is
A
freezing.
B
sublimation
C
condensing.
D
evaporation
6) Which of these is an example of a physical change?
A
breaking a stick in half
B
wood burning
C
a piece of metal rusting
D
a mineral weathering to form another mineral
7) Which of these is NOT a physical property of matter?
A
boiling point
B
density
C
combustibility
D
melting point
8) Which of these observations would show a chemical property of matter?
A
The density of water is 1 g/cm3.
B
Glass will break when it's dropped.
C
Gold can be bent to make a ring.
D
Lime juice will burn your tongue.
9) When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. This is an example of -
A
a physical change
B
neither a physical nor a chemical change
C
both a physical and a chemical change
D
a chemical change
10) When a nail rusts it is a _________________ change.
A
nothing
B
chemical
C
invisible
D
physical
*select an answer for all questions
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