1.2 Methods of Scientists

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1.2 Methods of Scientists
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Scientific Method

1. Identify a Problem
2. Form a hypothesis - suggested explanation for an
   observation
3. Test hypothesis
4. Analyze record all data
5. Conclusion

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Measurement

• SI system
• Length meter stick (meters, cm, mm)
• Weight and mass weight is the measure of
  gravitational force on an object
• Unlike mass, weight varies upon locations
• Weight Newtons
• Mass kg

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Measurement (cont)

• Area and Volume
• Area is amount of surface included within a set
  of boundaries (cm2)
• Volume is the amount of space occupied by an
  object (cm3)
• Density
• Measure of the amount of matter that occupies a
  given space (mass/volume)
• Temperature
• Temp is usually measured in Celsius
• SI is also done in Kelvin (coldest temp possible
  is absolute zero