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| 1 |
Observable knowledge is called: |
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theoretical |
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empirical |
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interpretive |
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qualitative |
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| 2 |
Knowledge that explains and describes scientific observations is called: |
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empirical |
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theoretical |
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interpretive |
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qualitative |
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| 3 |
A list, in numbered steps, of specific instructions to be followed is called: |
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an evaluation |
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an experimental design |
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the evidence |
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the procedure |
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| 4 |
A summary of the experimental method to be used during an experiment is called: |
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the procedure |
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the problem |
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the experimental design |
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the observations |
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| 5 |
Empirical hypotheses are: |
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preliminary statements that require further testing |
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statements of major concepts based on a large body of empirical knowledge. |
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statements that define an object or a process. |
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statements that summarize a relatively small number of empirical results. |
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| 6 |
Which of the following are all heterogeneous substances? |
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pure oxygen, pure water, alcohol |
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raisin bran cereal, stainless steel, the atmosphere |
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milk, strawberry jam, gold |
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calcium metal, sodium metal, hydrogen gas |
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| 7 |
Separating a compound into its elements is called: |
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catalytic cracking |
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decomposition |
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fractionating |
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formation |
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| 8 |
A substance that cannot be broken down chemically into simpler units by heat or electricity is: |
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a pure substance |
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stainless steel |
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water |
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an element |
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| 9 |
To which of the following four STS perspectives does this statement belong? A local politician reported to his constituents that the level of hydrogen sulfide in the air is within the acceptable levels set by legislation. |
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ecological |
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technological |
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economic |
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political |
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| 10 |
What single technological advancement allowed scientists to more accurately distinguish between substances that were elements and substances that were compounds? |
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high temperature fire |
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steam engine |
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electricity |
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microscope |
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