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Ch 1.1 - 1.5 Vocab
Ch 1.1 Vocab
Term | Definition |
---|---|
Science | Study the natural world |
Observing | Use senses to get info |
Inferring | Explain observations |
Predicting | Make forcast what will be in the future based on past |
Chemistry | Study of matter + how it changes |
Physics | Study of matter energy, motion, forces + how they interact |
Scientific inquiry | Refers to the different ways scientists study the natural world |
Hypothesis | Possible answer |
Parameter | Factor that can be measured |
Manipulated variable | Purposely changed |
Responding variable | Responds to manipulated |
Controlled expirement | Parameter is manipulated |
Data | Facts, figures, and other evidence |
Communicating | Share into about experiment w/ others |
Models | Picture or image of object or process |
Theories | Well tested explanation |
Law | Rule of nature (Law of gravity) |
SI | Expanded metric system called International System of Units |
Weight | Measure of force of gravity on you |
Mass | Measure of the amount of water |
Volume | Amount of space and object takes |
Meniscus | The curved upper surface of a liquid in a column of liquid |
Length | Distance from one point to another |
Accuracy | How close a measurement |
Reproducibility | How close a group of measurements are to each other |
Significant Figures | Measurements include all of the digits that have been measured exactly, plus one digit whose value has been estimated |
Precision | Measure of the exactness of a measurement |
Horizontal axis | Graph line that runs left to right |
Vertical axis | Graph line that runs up and down |
Origin | Has coordinates of (0,0) |
Coordinate | Pair of #'s used to determine the position of a point on a graph |
Data point | The point showing the location of that intersection |
Line of best fit | Smooth line that reflects the general pattern of a graph |
Linear graph | In which the data points yield a straight line |
Slope | Steepness of the graph line |
Nonlinear graph | In which the data points do not fall along in a straight line |
Estimate | Approximation of a # based on reasonable assumptions |