Name ____________________________________
Date ____________________
Physical Science Exam 3
16. The formula for density is
A. Density = mass x volume
B. Density = mass ÷ volume
C. Density = volume ÷ mass
17. When matter is ______________, no light goes through.
A. Translucent
B. Transparent
C. Opaque
18. When matter is ______________, all light goes through.
A. Translucent
B. Transparent
C. Opaque
19. When matter is ______________, some light goes through.
A. Translucent
B. Transparent
C. Opaque
20. The periodic table is a table of
A. Atoms
B. Elements
C. Compounds
21. Elements and compounds are
A. Pure substances
B. Atoms
C. Mixtures
22. Homogeneous mixtures __________ the same throughout.
A. Are
B. Are not
C. Might be
23. Heterogeneous mixtures __________ the same throughout.
A. Are
B. Are not
C. Might be
24. The density of water is
A. 50
B. 1
C. 5
26. If an object has a density greater than 1, it will
A. Sink
B. Float
C. Be suspended
27. The temperature at which a liquid will become a solid is its
A. Boiling point
B. Freezing point
C. Melting point
D. Condensation point
28. The temperature at which a solid will become a liquid is its
A. Boiling point
B. Freezing point
C. Melting point
D. Condensation point
29. The temperature at which a liquid will become a gas is its
A. Boiling point
B. Freezing point
C. Melting point
D. Condensation point
30. Reactivity, flammability, and combustibility are
A. Physical properties
B. Chemical properties
C. Complex properties
Identify each property as chemical (c) or physical (p).
______
______
______
______
______
______
______
______
______
Has a sour taste
Boils at 100 degrees
Reacts with another substance
Dissolves in water
Conducts electricity
Is highly flammable
Turns green when exposed to the environment
Is a gas
Rusts