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Science Ch. 1 Vocab
The vocabulary words for chapter 1 in the Physical Science book.
| Term | Definition |
|---|---|
| science | study natural world |
| observing | use senses to get info |
| inferring | explain observations |
| predicting | make forecast of what will be in the future based on past events |
| chemistry | study of matter and how it changes |
| physics | study matter of energy, motion forecast, and how they interact |
| scientific inquiry | different ways scientists study the world |
| hypothesis | possible answer to scientific inquiry |
| parameter | factor that can be measured in an experiment |
| manipulated variable | purposely changed variable |
| responding variable | respond to manipulated variable |
| controlled experiment | an investigation that only has one manipulated variable |
| data | facts, figures, and other evidence gathered through observations |
| communicating | share info about experiments with others |
| model | picture or image of object or process |
| scientific theory | well tested explanation |
| scientific law | rule of nature (ex. law of gravity) |
| SI | international system of units |
| weight | a measure of the force of gravity on you |
| mass | a measure of the amount of matter an object contains |
| volume | the amount of space an object takes up |
| meniscus | the curved top surface of the water in the graduated cylinder |
| density | mass per unit volume |
| Celsius scale | water freezes at 0 degrees and water boils at 100 degrees |
| Kelvin scale | the SI temperature scale |
| absolute zero | 0 K on the Kelvin scale, nothing can get colder than this, -273 degrees on the Celsius scale |
| estimate | an approximation of a number based on reasonable assumptions |
| accuracy | how close a measurement is to the true or actual value |
| reproducibility | how close a group of measurements are to each other |
| significant figures | all of the digits that have been measured exactly |
| precision | a measure of the exactness of a measurement |
| graph | a picture of your data |
| horizontal axis | the graph line that runs left to right |
| vertical axis | the graph line that runs up and down |
| origin | the point where the two axes cross |
| coordinate | a pair of numbers used to determine the position of a point on a graph |
| data point | the point showing the location of where two lines cross |
| line of best fit | a smooth line that reflects the general pattern of a graph |
| linear graph | a line graph in which the data points yield a straight line |
| slope | the steepness of the graph line |
| nonlinear graph | a line graph in which the data points do not fall along a straight line |
Created by:
yosf
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