Characteristic Properties

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ANSWER KEY

Characteristic properties TEXTBOOK pp. 21, 43

1. Which of the following statements does not describe a characteristic property? a) A characteristic property helps to identify a substance or group of substances.  b) A characteristic property helps to tell how a substance or object will affect its environment.  c) A characteristic property helps to determine how a substance or object can be used.  d) A characteristic property helps to tell how much of a substance will be produced.

2. Are the following items characteristic or non-characteristic properties? Check the correct answer. Characteristic Non-characteristic 3. property property a) Temperature at which ice melts. . y

r b) Size of an object.  o t a v

r c) Amount of juice written on a container.  e s b d) Density of a substance. O  h t i

w e) Genetic code of a bee.

 e s u f) Electrical conductivity of copper wire.  m o o r g) Acidity of vinegar.  s s a l c

h) Shape of a wooden board.  r o f y l i) Hardness of a diamond.  e l o s j) Mass of a ball  d e t t i m r e

p Name the characteristic property described in each statement below. Choose from among n o i t the properties listed in the box. a t p a d a

d Ductility Acidity Density n a

n Melting point Boiling point Solubility o i t c u d o r p e Melting point. R a) Aluminum melts at a temperature of 660°C.

P b) A mass of 1 g water occupies a volume of 1 mL. Density. R E

© c) Copper is very useful for making electrical wire. Ductility. d) Sugar readily dissolves in water. Solubility. e) Ethanol boils at a temperature of 78°C. Boiling point. f) Unpolluted rainwater has a pH of 5.6. Acidity.

Observatory/Guide  11071-B  SUPPORT ACTIVITIES – CYCLE ONE 1