CHEM BUSSY

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Last updated 12:45 AM on 6/9/26
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9 Terms

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Scientific Method

 A systematic process used to investigate questions and solve problems. 

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step-by-step process

  1. Observation

  2. Question

  3. Hypothesis

  4. Experiment

  5. Collect Data

  6. Analyze Results

  7. Drawing Conclusions

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Hypothesis

 A testable prediction about what will happen in an experiment. 
Ex. If seed grows on …

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Theory

A well-tested explanation supported by a large amount of evidence. 

Ex. Evolution theory

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ethics

Ensures honesty and responsibility in scientific research

  • objectivity helps scientists make conclusions based on evidence rather than personal beliefs 

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Accuracy

How close a measurement is to the true value

ex. object's true mass is 50 g and you measure 49.9 g

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Precision

How close repeated (consisteincy measurements are to each other.

ex. measure the same object and get 25.1 g, 25.1 g, and 25.2 g

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Significant figures importnace

show how precise a measurement is and prevent reporting more digits than the measuring tool can accurately measure

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Read measurements to the proper significant figures

Record all certain digits + 1 estimated digit.

  • Ruler marked in cm → write 2.3 cm, not just 2 cm.

  • Ruler marked in mm → write 18.3 mm.

  • Graduated cylinder marked every 1 mL → write 24.6 mL.