lOMoARcPSD|64109549
Lab 1
Tuesday, January 21, 2025
3:39 PM
Safety and Scientific Method
Lab Safety
Personal protective equipment (PPE) is worn to minimize exposure to hazards that cause serious
workplace injuries and illnesses. These may result from contact with chemical, radiological, electrical,
mechanical, or other workplace hazards.
Treat every specimen as if it's infected.
Keep goggles, lab coat and gloves on.
Locate the eyewash station and know how to use it.
Locate first-aid kit and fire extinguisher.
Locate chemical and glass disposal area.
Scientific Method helps us to answer questions about things that we see in everyday life.
Observation - anything that you see in the natural world.
Question - why? To what extent? - how to answer the observation
Hypothesis - Structured, logical explanation or prediction to answer your question. It has to be specific,
testable and objective.
Reasoned - inductive (from specific to general) and deductive (things correlate)
Experiment
Variables Independent - Changing, experimental
Dependent - Results
Standardized - Things you know
Treatment groups Experimental
Control
Positive (exactly what you expect)
Negative (nothing happens)
Prediction - about the experiment and outcome
Collect and Analyze data
Condense and report
Reproducibility
Hypothesis
Supported hypothesis - H1
Null hypothesis - H0
Negative control
Positive control
Collect Data
Keep a notebook
Quantitative data (numbers, measurements, objective)
Downloaded by Aplus Grade ()
Lab 1
Tuesday, January 21, 2025
3:39 PM
Safety and Scientific Method
Lab Safety
Personal protective equipment (PPE) is worn to minimize exposure to hazards that cause serious
workplace injuries and illnesses. These may result from contact with chemical, radiological, electrical,
mechanical, or other workplace hazards.
Treat every specimen as if it's infected.
Keep goggles, lab coat and gloves on.
Locate the eyewash station and know how to use it.
Locate first-aid kit and fire extinguisher.
Locate chemical and glass disposal area.
Scientific Method helps us to answer questions about things that we see in everyday life.
Observation - anything that you see in the natural world.
Question - why? To what extent? - how to answer the observation
Hypothesis - Structured, logical explanation or prediction to answer your question. It has to be specific,
testable and objective.
Reasoned - inductive (from specific to general) and deductive (things correlate)
Experiment
Variables Independent - Changing, experimental
Dependent - Results
Standardized - Things you know
Treatment groups Experimental
Control
Positive (exactly what you expect)
Negative (nothing happens)
Prediction - about the experiment and outcome
Collect and Analyze data
Condense and report
Reproducibility
Hypothesis
Supported hypothesis - H1
Null hypothesis - H0
Negative control
Positive control
Collect Data
Keep a notebook
Quantitative data (numbers, measurements, objective)
Downloaded by Aplus Grade ()
