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ps chapter 1
science
Term | Definition |
---|---|
observing | using one or more senses to gather info |
scientific law | statement that describes expectation under conditions |
communicating | ideas through writing and speaking |
inferring | making an inference |
science | the study of the natural world |
model | image, diagram, representation of an object |
predicting | making a forecast based on experience |
scientific theory | tested explanations for observations |
chemistry | study of properties of matter and how the change |
physics | study of matter, energy, motion, forces, how they interact |
scientific inquiry | different ways to study the natural world |
hypothesis | possible answer to scientific question |
parameter | factor that can be measured in experiment |
manipulated variable | purposely changed |
responding variable | expected to change |
controlled experiment | one parameter manipulated at a time |
data | facts, figures observed |
Graph | pic of data |
horizontal axis | X |
vertical axis | Y |
origin | point where X and Y cross |
coordinate | pair of #s position on graph |
data point | point showing location of intersection |
line of best fit | smooth line in general pattern |
linear graph | data points in straight line |
slope | steepness on graph line |
non linear graphs | data points in non straight line |
si | expanded metric system |
weight | force of gravity on you |
mass | measure of amount of mass in object |
estimate | approx. number based on reasonable |
accuracy | true or actual value |
reducibility | closeness of groups measurments |
significant figures | all digits exactly measured plus 1 digit |
precision | exactness of measure |