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# Chapter 1

### Vocabulary

Term | Definition |
---|---|

Science | Study natural world |

Observing | Use 1 or more to gather information |

Inferring | Explaining Observations |

Predicting | Making forecasts based on past |

Chemistry | Study properties of matter |

Physics | Matter of energy and how to interact |

Scientific Inquiry | Different ways to study |

Hypothesis | Explaining observation |

Parameter | Factor in experiment |

Manipulated Variable | Change during experiment |

Responding Variable | A perimeter in experiment |

Controlled Experiment | Experiment in time |

Data | Facts and figures that gather information |

Communicating | Experiment with others |

Model | Picture of object or process |

Scientific Theory | Explaining observations |

Scientific Law | Rule of nature |

Length | The distance from one to another |

Weight | A measure of the force of gravity on an object |

Mass | A measure of how much matter is in an object |

Volume | The amount of space that matter occupies |

Meniscus | The curved upper surface of a liquid in a column of liquid |

Estimate | An approximation of a number based on reasonable assumptions |

Accuracy | How close a measurement is to the true |

Reproducibility | How close a group of measurements are to each other |

Significant Figures | digits that carry meaning |

Precision | A measure of the exactness of measurement |

Graph | A picture of information from a data table |

Horizontal Axis | A line that runs left to right |

Vertical Axis | A line that runs up and down |

Origin | The (0,0) point on a line graph |

Coordinate | A pair of numbers used to determine the position of a point on a graph |

Data Point | A point on a graph showing the location of a piece of data |

Line of best fit | A smooth line that reflects the general pattern in a graph |

Linear Graph | A line graph in which the data points yield |

Slope | The steepness of a line on a graph |

Nonlinear Graph | A line graph in which the data points do not fall |

Created by:
CHRISTOPHER0521