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18 Cards in this Set
- Front
- Back
Conclusion.
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A short summary of what was found in the experiment.
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Continuous Data. |
Has values the exist between those tested in the experiment. EG- time, height, aga, temperature, length and weight.
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Controlled Variable.
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All variables that must not change throughout the experiment, to ensure a fair test. |
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Dependent Variable. |
The variable being measured by the experimenter. Changes because the independent variable is changed. |
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Discontinuous Data. |
Separated into catergories. EG- colour, blood type, chemical type, Bunsen Burner flame and animal type. |
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Errors. (Types and Impacts of) |
Parallax- Not having your eye directly in line with the measurement. Reading- Due to estimations needed when looking for a colour change, or when a measurement falls between an instrument's markings. Instruments/Equipment- Due to an instrument's limitations, or using equipment at a temperature it is not designed for. Human Reflex- The differing reaction rate between experimenters. Zero Errors- Due to instruments giving a higher or lower readign when they should be zero. |
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Fair Test. |
A fair test is making sure you have no mistakes preforming multiple trials and making sure all equipment is correct. |
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Hypothesis. |
An 'educated guess' about what might happen in the experiment. |
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Independent Variable. |
The variable changed by the experimenter. Usallly causes a change in the dependent variable. |
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Mistakes. |
Mistakes can be avoided with care.
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Observation.
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An dobservation is taking a measurement or recording some type of data.
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Qualitative Data.
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Comes from observations that are descriptive only.
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Quantitative Data.
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Comes from measurements that use numbers. (and usally units)
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Reliable Data.
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Reliable data is data that is reproducible. 1. Multiple trails are prefromed. 2. The results are consistent. 3. An average is calculated. |
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Risk Assessment.
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Risk is the possible of suffering harm or loss. It is important to minimise risk in an experiment.
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Scientific Method.
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1. Ask a question. 2. Do background research. 3. Construct a hypothesis. 4. Test with an experiment. 5a. Record results. 5b. Analyse results. 6. Refer to hypothesis. 7. Report hypothesis. |
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Variables. |
Factors that might have some influence on an experiment.
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Valid Data.
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Valid data is data that is relevant and fair. A method will be on valid if: 1. It is based on the aim of the experiment. 2. It incorporates suitable equipment. 3. Othe variables are controlled. 4. Appropriate measuring procedures are included. |