| A | B |
| science | a way of learning about the natural world |
| observing | using one or more of your senses to gather information |
| qualitative observation | descriptions that do not involve numbers |
| quantitative observation | descriptions that deal with a number or amount, measurements |
| inferring | explaining or interpreting things you observe based on reasoning from what you already know |
| predicting | making a forecast of what will happen in the future based on experience or evidence |
| chemistry | the study of the properties of matter and how matter changes |
| physics | the study of matter and energy and how they interact |
| scientific inquiry | the diverse ways in which scientists study the natural world |
| hypothesis | a possible explanation for a set of observations |
| variable | any factor that can change in an experiment |
| independent variable | The variable that is changed on purpose during an experiment |
| dependent variable | the variable that changes in response to another change |
| controlled experiment | an experiment in which only one variable is changed at a time |
| data | facts, figures, and other evidence that scientists collect |
| communicating | the ways in which scientists share ideas and experimental results |
| scientific law | a rule of nature that describes what scientists expect will happen every time when conditions are the same |
| scientific theory | a well tested explanation for a wide range of observations or experimental results |
| sci- | to know, knowledge |
| -able | capable of |
| deci- | tenth |
| centi- | hundredth |
| milli- | thousandth |