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NOS Chapter
| Question | Answer |
|---|---|
| biodegradable | capable of being broken down |
| organic | made of carbon; derived from living things |
| controlled experiment | contains two groups: controlled and experimental used to show how a changed in the independent causes a change in the dependent variable |
| observation | using one or more of your senses to gather information; take note of what occurs |
| inference | a logical explanation of an observation that is drawn from prior knowledge or experience |
| prediction | a statement of what wil happen next in a sequence of events or in an experiment |
| scientific theory | an explanation of observations or events based on knowledge gained from many observations and investigations |
| independent variable | in a controlled experiment, it it remains the same; it changes the dependent variable the factor that you want to test; it can be changed by the investigator to observe how it affects a dependent variable |
| dependent variable | the factor measured or observed during an experiment |
| variable | any factor in an experiment that can have more than one value |
| constant | the factor(s) in an experiment that remain the same |
| hypothesis | a possible explanantion about an observation that can be tested by scientific investigation(s) |
| description | a spoken or written summary of observations |
| explanation | an interpretation of observations |
| precision | a decription of how similiar or close measurements are to each other |
| accuracy | a description of how close a measurement is to an accepted or true value |
| bias | intentional or unintentional prejudice towards an outcome |
| ethics | an acceptable standard of conduct; rules of conduct or moral principle |
| blind study | a procedure that reduces bias; investigato, subject, or both do not know which item they are testing |
| sampling | a method of data collection that involves studying small amounts of something in order to learn about the larger whole |
Created by:
Christie Williams
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