| A | B |
| Beam Balance | a tool used to determine the mass of an object. |
| Conclusion | a summary of the findings of an experiment based on scientific observations, inferences, and collected data. |
| Controlled scientific investigation | an experiment in which an observer tests a hypothesis by looking for changes in the dependent variable. |
| Controlled variables | those things which you keep the same, or constant, in an experiment. |
| Dependent (responding) variable | the thing that you measure or observe in an experiment. |
| Diagram | a visual representation that identifies specific parts, a sequence of events, or how things are alike and different. |
| Force | a push or pull exerted on an object. |
| Graph | a visual representation that is used to compare data. |
| Hypothesis | a prediction (educated guess) about the outcome of a controlled scientific investigation. |
| Independent (manipulated) variable | the thing that you change or make different in an experiment. |
| Inference | an explanation of an observation based on prior experiences. |
| Mass | a measure of how much mass (stuff) is in an object. |
| Model | a simplified version of a concept or an object. |
| Observation | a statement that is made by describing properties using the five senses or scientific tools. |
| Qualitative observation | scientific observations that are made using only the senses and refer to specific properties. |
| Quantitative observation | scientific observations that use numbers (amounts) or measurements (including the unit label) or that make relative comparisons, such as more than, all, less than, few, or none. |
| Prediction | an inference about the future. |
| Scientific question | a question that can be answered using experimentation and factual reasoning. |
| Spring scale | a tool used to determine the weight or force exerted by an object. |
| Weight | a measure of the force of gravity on an object. |