Study Vocab of the Scientific Method Unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Observation | Describing something exactly how you sense it (see, smell, taste, hear, feel).
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| Inference | A quick conclusion that attempts to explain an observation.
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| Prediction | To forecast or guess the outcome.
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| Analysis | To separate data into smaller pieces of study. To make sense of data.
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| Conclusion | To accept or reject a hypothesis. Last step in scientific method.
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| Data | Recorded observations in experiment
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| Hypothesis | A tentative explanation or educated guess of an event based on research.
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| Controlled Experiment | An experiment where all variables are controlled except for the one being tested for.
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| Variable | Anything that can change in an experiment.
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| Constant/Control Variable | All the variables that remain the same in an experiment.
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| Control Group | The experimental group that has no changes. The group you compare to.
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| Independent Variable | The variable that you change in an experiment. "I" change or "I" choose.
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| Dependent Variable | The variable that you measure in an experiment. What you are looking for.
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| What is the first step to the scientific method? | Observation
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| What is the difference between an observation and an inference? | An observation simply states what is happening, where an inference offers an explanation as to why it is happening.
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| Data involving numbers | Quantitative data
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| Data involving descriptions | Qualitative data
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| What is the difference between hypotheses, theories, and laws? | Hypotheses are least tested, theories give explanations as to why after many experiments, and laws explain what happens and no longer need to be tested.
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| What possible errors could be made in an experiment? | more than one I.V., measuring errors, too few trials, not enough subjects, small sample size
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| Why is it important to have lab safety rules? | Prevent accidents, Avoid Injury, Prevent Damage to equipment,
Do experiment correctly
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| What type of microscope do we use in lab? | Light Microscope
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| What type of microscope is used to get a top view of thick specimen? | Dissecting scope
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| What type of electron microscope gives a detailed look inside very small specimens? | Transmission Electron Microscope
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| What type of electron microscope gives a 3-D image of a very small specimen? | Scanning Electron Microscope
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| Why do you drop a cover slip on a slide the way we do? | To prevent air bubbles
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| What does the diaphragm of a microscope do? | Controls the amount of light to pass through slide
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| When do you use the coarse adjustment knob? | Only on low power
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| Why do you use only the fine focus adjustment on high power? | If you use the coarse adjustment, you could break the slide.
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| How much does the eyepiece magnify? | 10 time (10x)
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| How do you figure out the total magnification of a microscope? | Eye piece (10) times objective lens = total magnification
Example 10 (eyepiece) x 40 (low power) = 400 (total mag)
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| Where does the independent variable always go on a graph? | X-axis
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| Where does the dependent variable always go on a graph? | Y-axis
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| Where can you get the most current and reliable research for science topics? | Scientific Journals
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| We measure volume using: | Graduated cylinders using milliliters (mL)
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| What are metric measurements for length? | millimeters (mm), centimeters (cm), meters (m)
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| Where does broken glass go after a laboratory accident? | the ceramic container in the back of lab
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