Sources of Error in Experiments
Biology ⇒ Scientific Inquiry and Experimental Design in Biology
Sources of Error in Experiments starts at 8 and continues till grade 12.
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See sample questions for grade 9
A student consistently adds 2 mL extra water to each test tube by mistake. What type of error is this?
A student forgets to zero the balance before weighing a sample. What type of error does this introduce?
A student measures the temperature of a solution but reads the thermometer from above instead of at eye level. What type of error is this?
A student records the time for a reaction but starts the stopwatch late. What type of error is this?
A student records the volume of liquid in a beaker by looking from the side instead of at eye level. What type of error is this?
A student uses a ruler with worn-out markings to measure plant growth. What type of error is most likely to occur?
A student uses a stopwatch with a slow reaction time. What type of error does this introduce?
Describe how environmental factors can introduce errors in biological experiments.
Describe one way to detect systematic errors in an experiment.
Describe one way to reduce random errors in an experiment.
Describe the difference between random error and systematic error.
Explain why it is important to identify sources of error in an experiment.
Explain why it is important to record all observations, even if they seem like errors.
Explain why repeating an experiment and averaging the results can improve accuracy.
Explain why using a measuring cylinder with a large scale division can introduce error.
If a thermometer is not calibrated correctly and always reads 1°C higher than the actual temperature, what type of error is this?
What is a source of error in a scientific experiment?
