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Scientific Method
Study Vocab of the Scientific Method Unit
| Question/Term | Answer/Definition |
|---|---|
| Observation | Describing something exactly how you sense it (see, smell, taste, hear, feel). |
| Inference | A quick conclusion that attempts to explain an observation. |
| Prediction | To forecast or guess the outcome. |
| Analysis | To separate data into smaller pieces of study. To make sense of data. |
| Conclusion | To accept or reject a hypothesis. Last step in scientific method. |
| Data | Recorded observations in experiment |
| Hypothesis | A tentative explanation or educated guess of an event based on research. |
| Controlled Experiment | An experiment where all variables are controlled except for the one being tested for. |
| Variable | Anything that can change in an experiment. |
| Constant/Control Variable | All the variables that remain the same in an experiment. |
| Control Group | The experimental group that has no changes. The group you compare to. |
| Independent Variable | The variable that you change in an experiment. "I" change or "I" choose. |
| Dependent Variable | The variable that you measure in an experiment. What you are looking for. |
| What is the first step to the scientific method? | Observation |
| 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. |
| Data involving numbers | Quantitative data |
| Data involving descriptions | Qualitative data |
| 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. |
| 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 |
| Why is it important to have lab safety rules? | Prevent accidents, Avoid Injury, Prevent Damage to equipment, Do experiment correctly |
| What type of microscope do we use in lab? | Light Microscope |
| What type of microscope is used to get a top view of thick specimen? | Dissecting scope |
| What type of electron microscope gives a detailed look inside very small specimens? | Transmission Electron Microscope |
| What type of electron microscope gives a 3-D image of a very small specimen? | Scanning Electron Microscope |
| Why do you drop a cover slip on a slide the way we do? | To prevent air bubbles |
| What does the diaphragm of a microscope do? | Controls the amount of light to pass through slide |
| When do you use the coarse adjustment knob? | Only on low power |
| Why do you use only the fine focus adjustment on high power? | If you use the coarse adjustment, you could break the slide. |
| How much does the eyepiece magnify? | 10 time (10x) |
| 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) |
| Where does the independent variable always go on a graph? | X-axis |
| Where does the dependent variable always go on a graph? | Y-axis |
| Where can you get the most current and reliable research for science topics? | Scientific Journals |
| We measure volume using: | Graduated cylinders using milliliters (mL) |
| What are metric measurements for length? | millimeters (mm), centimeters (cm), meters (m) |
| Where does broken glass go after a laboratory accident? | the ceramic container in the back of lab |
Created by:
Rylands
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