| A | B |
|---|
| science | a way of learning about the natural world through observations and logical reasoning; a body of knowledge about the natural world |
| observing | the process of using one or more of your senses to gather information |
| qualitative observation | an observation that deals with characteristics that are not expressed in numbers |
| quantitative observation | an observation that deals with a number or amount |
| inferring | an interpretation or explanation based on observations and prior knowledge |
| predicting | the process of forecasting what will happen in the future based on past experience or evidence |
| chemistry | 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 and propose explanations based on evidence they gather; the ongoing process of discovery in science |
| hypothesis | possible explanation for a set of observations or answer to a scientific question; must be testable |
| variable | factor that can change in an experiment |
| manipulated variable | the one factor that a scientist changes during an experiment; also called the independent variable |
| responding variable | factor that changes as a result of changes to the manipulated variable; also called the dependent variable |
| controlled experiment | experiment in which only one variable is manipulated at a time |
| data | facts, figures, and other evidence gathered through observations |
| scientific law | statement that describes what scientists expect to happen every time under a particular set of conditions |
| scientific theory | well-tested explanation for a wide range of observations or experimental results |
| communicating | process of sharing ideas with others through writing and speaking |
| technology | a way of changing the world to meet human needs and solve problems |
| engineer | uses both science and technology to solve practical problems |
| brainstorming | process where group members suggest any creative solution that comes to mind |
| constraint | any factor that limits or restricts a design |
| trade-off | giving up one benefit to gain another benefit |
| prototype | working model used to test a design |
| troubleshooting | process of analyzing a design problem and finding a way to fix it |
| system | group of related parts that work together |
