| A | B |
|---|
| validate | demonstrate or support the truth or value of |
| introduced error | a mistake in the design of an experiment that could invalidate the results |
| variable | something that changes |
| evidence | the available body of facts or information indicating whether a belief or proposition is true or valid |
| anomaly | something that deviates from what is standard |
| pattern | in nature, they are visible regularities of form that are found in the natural world |
| data | the experimental of this kind refers to the kind that is generated within the context of a scientific investigation by observing and recording |
| Occam's Razor | the simplest answer is usually the best |
| orbit | the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic ellipitical revolution |
| universe | everything that can be observed and studied through the use of science |
| model | an approximation that can be used to understanda more complex natural phenomenon |
| mass | the quantity of matter in ad body |
| density | the degree of compactness of a substance - mass per unit volume |
| gravity | the force that attracts a body toward the center of the earth, or toward any other mass |
| force | a push or pull that accelerates |
| speed | the distance traveled per time (miles per hour) |
| velocity | the speed and direction a body is moving |
| acceleration | change in velocity (either speed or direction) |
| inertia | the resistance of an object to a change in motion |
| friction | a force that resists motion |
| momentum | mass times velocity |
| vector | used to represent direction and magnitude |
