| A | B |
|---|
| velocity | describes movement from one place to another over time and in a certain direction |
| control variables | variables in an experiment that are kept the same throughout the experiment |
| distance | the length of space between two points. |
| English system | a system of measuring that uses, for example, distance units of inches, yards, and miles |
| experiment | any situation that is set up to observe and measure something happening. |
| experimental technique | the exact procedure that is followed each time an experiment is repeated. |
| experimental variable | a variable in an experiment that is changed by the experimenter; the experimental variable is plotted as an independent variable on the x-axis of a graph |
| hypothesis | a prediction that can be tested by experimentation |
| investigation | one or more experiences that are all connected to answering the same basic question. |
| cause and effect | the relationship between an event that brings about a result and what happens due to the result. |
| length | a unit of measurement for distance. |
| measurements | the act or process of measuring in multiples of a specific unit. |
| metric system | a system of measuring that uses, for example, distance units of millimeters, centimeters, meters, and kilometers. |
| procedure | a collection of all the techniques you use to do an experiment |
| research question | a question that is solved through investigation. |
| scientific evidence | any observation that can be repeated with the same results. |
| scientific method | a process that is used to gather evidence that leads to understanding |
| second | a commonly used unit of time; 1/60 of a minute |
| time | a useful measurement of changes in motion or events; all or part of the past, present, and future |
| trial | each time an experiment is tried |
| variables | factors that affect the results of an experiment |
| controlled experiment | when one variable is changed and all the others are controlled or stay the same throughout the experiment. |
