Many science classes begin with the scientific method. Here we consider a systematic approach to discovery, including observation, hypothesis, experiment, conclusions, controls, and theories and laws.
A hypothesis
A law
A theory
None of the above
A hypothesis
A law
A theory
None of the above
Corrosiveness of sulfuric acid
Toxicity of cyanide
Flammability of gasoline
Neutralization of stomach acid with an antacid
Lead becomes a liquid when heated to 601C
Dynamite explodes
Meat rots if it is not refrigerated
Gasoline burns
Ice floats on top of liquid water
A silver platter tarnishes
Tin can be hammered into a thin sheet.
At –40C a sheet of tin crumbles to a gray powder.
At –40C a sheet of tin crumbles to a gray powder.
When a bar of tin is bent, it emits an audible “cry”.
Tin erodes when added to hydrochloric acid, and a clear gas forms.
Hypothesis
A law
A theory
None of the above
1 only
2 4
1 3 4
4 only
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