Section 1.3 Scientific Methods

Practice Test
      
  1.

A hypothesis is more likely to become a __________ because __________.
 
  a.   scientific law; fewer trials are needed during the experimental phase  
  b.   scientific law; theories are conclusions reached by many scientists about relationships in nature  
  c.   theory, fewer experiments are needed in order to support it  
  d.   theory, scientific laws are conclusions reached by many scientists about relationships in nature  
  Hint    
      
  2.The general term for a systematic approach used in scientific study is _______________.  
  a.   the scientific method  
  b.   qualitative analysis  
  c.   quantitative analysis  
  d.   the scientific controversy  
  Hint    
      
  3.The type of data that is descriptive in nature is ___________.  
  a.   quantitative data  
  b.   qualitative data  
  c.   random data  
  d.   hypothetical data  
  Hint    
      
  4.What is the name given to a set of controlled observations that test a proposed explanation?  
  a.   hypothesis  
  b.   experiment  
  c.   theory  
  d.   conclusion  
  Hint    
      
  5.The variable that you plan to change during the course of an experiment is ___________.  
  a.   the independent variable  
  b.   the dependent variable  
  c.   a constant  
  d.   a control  
  Hint    
      
  6.A judgment based upon the results of an experiment is a _____________.  
  a.   hypothesis  
  b.   theory  
  c.   variable  
  d.   conclusion  
  Hint    
      
  7.When an explanation has been supported by many experiments, the explanation is a __________.  
  a.   hypothesis  
  b.   theory  
  c.   law  
  d.   model  
  Hint    
      
  8.A tentative explanation for a series of observations is a __________.  
  a.   hypothesis  
  b.   theory  
  c.   law  
  d.   model  
  Hint    
      
  9.A ________ can be used to help visualize microscopic structures and events.  
  a.   variable  
  b.   hypothesis  
  c.   theory  
  d.   model  
  Hint    
      
  10.Suppose that you experimentally determine the mass of nylon formed as a result of each of several similar chemical processes. What are the measurements of mass called?  
  a.   qualitative data  
  b.   independent variables  
  c.   controls  
  d.   quantitative data  
  Hint    

 
   
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