Science Inquiry Skills

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Report

1. Background Research
   1. Aim
2. Hypothesis
3. Variables
   1. Independent Variable
   2. Dependent Variable
   3. Controlled Variable
4. Equipment and chemicals
5. Diagram
6. Method

Data Processing

• Graph
• Gradient = $\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1}$ = rate

Conclusion

• Did results support hypothesis?

Evaluation

• Validity: Nothing else affects results
• Reliability: repeat experiment
  • Literally just this
  • Excludes outliers
  • Calculate average
  • Rhyme for Ms Pilling, help generations of students!
• Error
  • Something that affects results
  • Systematic error
    • E.g., inclusion of an unknown substance.
    • If gas is produced, human reaction time cannot contain all of the gas
      • Use a gas syringe :D
  • Random error
    • human reaction time, you underestimate my parry and dodge timing, ms pilling 🔥🔥🔥🔥

Discussion:

Hazard

• Potential event that causes harm
• Also an object that causes harm
• E.g., dangerous substances

Risk

• Occurrence of event that causes harm
• Also the likelihood of an event that causes harm
• E.g., effect of dangerous substances

Minimise Risk

• Things that prevent the occurrence of events that cause harm
• E.g., wear protective equipment
• If gas is produced, carry out experiment in well ventilated area
• prevent the risk or reduce the loss of control of the hazard
• reduce the effects

Measurements

$1c{m}^3=1mL$ $mold{m}^{-3}=mol{L}^{-1}$