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Scientific Method
Term | Definition |
---|---|
Inference | A logical assumption based on prior knowledge (comes after making an observation.) |
Observation | Act of using one or more of your senses to gather information and taking note of what occurs. |
Hypothesis | A testable statement that relies on information gathered from observations and inferences. Phrased as an "If" "then" statement. |
Variables | Factors in an experiment that are used for investigation. |
Independent Variable | Factor that you want to test that is changed by the investigator to observe how it affects a dependent variable. |
Dependent Variable | Factor that you want to observe or measure during an experiment. |
Scientific Theory | Explanation of observations or events that is based on knowledge gained from many observations and investigations. |
Constant | A variable that remains the same throughout an experiment. |
Sample Size | How many people, objects, or things involved in the experiment. Important when conducting an experiment on groups of subjects. |
Replication | Must be done in order for results of an experiment to be accepted. |
Conclusion | Developed after carrying out an experiment using data and analyzing results. |
Control Group | The group that must stay the same in an experiment to test the other group. The group used for comparison. |
Inquiry | Scientific process requiring the scientist to seek an answer to a question. |
Science | Investigation and exploration of natural events and of the new information that results from these investigations. |
Technology | Practical use of scientific knowledge, especially for industrial or commercial use. |
Qualitative Observation | Observations that are made using your senses. |
Quantitative Observation | Observations that are made using rulers, balances, graduated cylinders, beakers, and thermometers. |
Scientific Law | Rule that describes a pattern in nature. |
Experimental Group | The group that is being tested on. |
Critical Thinking | Comparing what you already know with the information you are given in order to decide whether you agree with it. |
Physical | Describes a branch of science in which matter and energy are studied. |
Prediction | Statement of what will happen in a sequence of events. |
Description | Spoken or written summary of observations. |
Explanation | Interpretation of observations. |
International System of Units | Internationally accepted system for measurement. |
Significant Digits | Number of digits you know in a measurement with a certain degree of reliability. |
Potential | Possible, likely, or probable. |
Gram | The base unit for mass. |
Liter | The base unit for volume. |
Meter | The base unit for length. |
Celsius | The metric unit for temperature. |