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# Science Unit 1

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

Accuracy | A description of how close a measurement is to the true value of the quantity measured. |

Complex Technology | Cars, phones, computers planes, etc |

Data Table | Tables that hold data that can be used in a graph. |

Dependent Variable | In a scientific investigation the factor that changes as a result of manipulation of one or more independent variables. |

Empirical Evidence | the observations measurements and other types of data people gather in tests to support and evaluate scientific explanations |

Engineering | the application of science and mathematics to solve real life problems |

Expiriment | an organized procedure to study something under controlled conditions. |

Graph | A diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles. |

Prediction | To tell in advance/ for tell the future |

Quantitative Observation | Relating to information that is expressed by a numbers or quantity |

Range | the difference between the largest and the smallest number in a data set. |

Mode | The number or numbers that occur the most frequently in a data set |

Median | The middle number in an ordered data set with an odd number of data points |

Bar Graph | A diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width |

Hypothesis | A testable idea or explanation that leads to scientific investigation |

Uncontrolled variable | Somthing like a force of nature, size of something, or its phisically unchangeable |

Histogram | a diagram consisting of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval |

Increments/Intervals | an increase or addition, especially one of a series on a fixed scale. |

Independent Variable | In a scientific investigation, the factor that is deliberately manipulated |

Infrence | A conclusion reached on the basis of evidence and reasoning |

Controlled Variable | In scientific experimentation is the experimental element which is constant and unchanged throughout the course of the investigation. |

Line Graph | A type of chart which displays information as a series of data points called 'markers' connected by straight line segments |

Observation | The process of obtaining information by using sentences |

Pie/Circle Graph | a type of graph in which a circle is divided into sectors that each represent a proportion of the whole |

Simple technology | Items such as forks, chairs, tables, pencils, etc |

Precision | The exactness of a measurement |

Prototype | A test model of a product |

Pseudoscience | a process of investigation that in one or more ways resembles science but deviates from the scientific methods |

Metric System | The decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass |

Qualitative Observation | relating to information that concerns quality or kind |

Science | The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested |

T Chart | A chart that shows the independent and the and dependent variable |

Technology | The application of science for practical purposes ; the use of tools, machines, and processes to meet human needs |

X axis | The axis on a graph going horizontal; independent variable |

Y axis | The axis on a graph that is going vertical; dependent variable |